Dsxpnm Serial Interface
Parallel & Serial Cables; Serial Cables; 1 - 24 of 777. View: 24 48 72. StarTech.com 2 Port 16in DB9 Serial Port Bracket to 10 Pin Header - serial.
Hi experts, Anyone please confirm that in the Router serial interface, when we specify the signal clock rate 64000 and bandwidth to 64, Does it mean that the connected WAN link provided by ISP is of 64 kbps? Router# conf t Router(config)# interface serial 1/0 Router(config-if)# clock rate 64000 (represented in BITS per second) Router(config-if)# bandwidth 64 (represented in kilobits per second) Suppose if i use connection of different bandwidth like 128k, 256k or even 2 Mpbs, then what should be the clock rate and Bandwidth for respective links? You can take example of 2 mbps and tell me what should i assign to Clock-rate and Bandwidth?? Plz explain this thing in both cases: 1.
Internet access link terminate over single router serial port 2. Router to Router connectivity. Hello I would be grateful if someone can advice me on this: I have a WAN link with capacity of 2560Kbps. I was looking at Solarwinds for the interface and see that the interface is capped at 2Mbps.
While checking through the interface I see that the Serial interface is configured as follows: interface Serial0/1/0 bandwidth 2560 no ip address load-interval 30 no fair-queue clock rate 2000000 end Could the clock rate set as 2000000 be capping the bandwidth? I wanted to change it and the next available clockrate is 4000000; should i then set it to this value? Hallo, I'm configuring a cisco1841 ios 12.4(1a) with a WIT-1T serial interface for FR access. It must act as DTE so I don't configure a 'clock rate' on Serial0/0/0. The router at the moment is not connected to DCE and no cable on interface. When I issue 'sh run' in Serial0/0/0 does appear a 'clockrate 2000000' that I never have configured.
Interface Serial0/0/0 description FR service bandwidth 128 no ip address encapsulation frame-relay IETF load-interval 30 ntp disable keepalive 8 no fair-queue clockrate 2000000 ---??? Frame-relay traffic-shaping! Interface Serial0/0/0.51 point-to-point description link fr con bassano cir 128k bandwidth 128 ip address 172.16.1.22 255 etc.
What about that unwanted clockrate? Best regards francesco. This command tells the router how many samples it should take per seconds from the recieving interface.
The the Telco provides the clocking to your router to ensure that there is no significant phase shift between the transmitted signal and the received signal, which would result in data loss. For example, if the intended message is a 'binary 10' and the Telco transmits a 1 for 2 seconds and a 0 for 2 seconds, but your router is set to sample once per second, your router will interpret a binary 1100 which in no way represents the intended message. Of course, I am oversimplifying the process but I hope this helps. Dear All, I want to know that how to determine actual bandwidth of a serial interface which the provider is giving to us. By default serial interface have 1544 kbps bandwith and its shows interface counters ( tx load, rx load ) according to that timer. If the actual bandwith is 128 kbps then interface counters shows wrong traffic load. 'Bandwidht' interface command is usefull when we know the actual bandwith.
Is there any way that Router adapt the bandwidth on serial interface from carrier. Regards, Mujeeb. I m having problem in a qos implementation so plz guide me where i m doing a mistake. I have got 2 routers A and B.
They r connected thru serial link with a bandwidth of 64k. ( i set the clock rate and the bandwidth on the A's serial interface which is my DCE side) now i have a ftp server connected on the lan of A. Client pc is connected at the lan of router B. I did a LLQ by matching the traffic of ftp from A to B and giving it the priority bandwith of 32k. Now i have also used lan traffic generator to chok the bandwidth. Now here is the problem. I have watched and read a hundred of times that PQ is always there even if there is no congestion means that 32k bandwidth will be reserved even if no traffic matching it is present, but wat i saw in the graph is that when i start any application it gets the complete 64k bandwidth why is that so????
I have used 2500 and 2811 for this lab but the result are always same, can some1 guide me that is there a problem in cisco's implementation or m i doing something wrong. Any help would be appreciated thanks. Hello, I have the following policy-map configured on the serial interface: policy-map VOICE_UP class VOICE priority 26 class TELEMETRY priority 110 class USER1 shape average 1536000 bandwidth 670 class USER2 shape average 1536000 bandwidth 670 class class-default fair-queue! Interface Serial4/0 bandwidth 1536 max-reserved-bandwidth 100 service-policy output VOICE_UP load-interval 30 According this policy-map I have four type of traffic - voice, telemetry, user1 and user2.
Telemetry traffic has very low bitrate, but information transfered in this traffic is very important. That is the reason why I'm make corresponding class using 'priority' command. The problem: When I use 'sh policy-map interface serial 4/0 inc 30 sec' command to monitor policy-map on interface, I see drop rate in output of this command. At the same time, I know that the capacity of channel is not exceeded. Example: #sh policy-map interface serial 4/0 inc 30 sec 30 second offered rate 3000 bps, drop rate 0 bps 30 second offered rate 5000 bps, drop rate 2000 bps 30 second offered rate 491000 bps, drop rate 0 bps 30 second offered rate 252000 bps, drop rate 0 bps 30 second offered rate 0 bps, drop rate 0 bps Why this drop rate occur?
As the topic states, I'm considering upgrading my video card(s). However, I'm pretty confused as to what I should upgrade to.
Please take a look at the specs below. GTX260 Specs Fill Rate per Second: 36.9 Billion pixelsVideo Memory: 896MBMemory Type: DDR3Core Clock: 576 MHzMemory Interface: 448-bitMemory Clock: 2000 MHzShader Clock: 1242 MHzStream Processors: 192Memory Bandwidth: 111.9GB/sec. 8800GTX Specs (WHAT I CURRENTLY OWN - IN SLI) Fill Rate per Second: 36.9 Billion pixelsVideo Memory: 768MBMemory Type: DDR3Core Clock: 575 MHzMemory Interface: 384-bitMemory Clock: 900 MHzShader Clock: 1350 MHzStream Processors: 128Memory Bandwidth: 36.8GB/sec.
EVGA 9800GTX Specs: Core clock 792MHzStream Processors 128Memory Clock 2304MHzMemory Size 512MBMemory Interface 256-bitWith all that being said, I'm really undecided as to what I should or shouldn't do. Any input would be GREATLY appreciated.
Well, I took the plunge. I just purchased the XFX GTX 260 on NewEgg for $300, with a mail-in-rebate of $30. If I like it, I will sell my two 8800GTX's for $300 and buy me another for an SLI setup. If I don't like it, I will send it back for a refund.
I was going to wait until the GTX 280's dropped in price but I figure I can just sell the GTX 260's when that happens, if I want to upgrade. I've reviewed the charts and the performance increase from the 260 to the 280 isn't really that much. The GTX 260 should be here on Friday and I will let everyone know the outcome. Hi, I am using 7200 VXR cisco router. I have NOT configured any max bandwidth reservation command on the serial interface, which has 20Mbs DS3 link. I have applied LLQ on the interface and seeing bandwith percentage is calculating on the basis of 100%. Please confirm as it should be 75% default.
Router#sh policy-map int s2/1 Serial2/1 Service-policy output: QOS-OUT queue stats for all priority classes: Queueing queue limit 64 packets (queue depth/total drops/no-buffer drops) 0/7545/0 (pkts output/bytes output) 76595100643 Class-map: voip-traffic (match-any) 765986730 packets, 7 bytes 30 second offered rate 32000 bps, drop rate 0 bps Match: access-group name VOIP 732317198 packets, 7 bytes 30 second rate 0 bps Priority: 45% (9045 kbps), burst bytes 226100, b/w exceed drops: 7545 QoS Set dscp ef --More. Hello Rupesh, not all Cisco router platforms have the system hidden queue for routing protocols and so they miss the concept of max-reserved bandwidth. This happens on high end routers like C7500, C12000 and may be also on C7200 VXR. If so it is your responsability to provide a class-map to protect routing traffic when the link is full. I remember a test I did with one C7500 on one side and a C3640 on the other side: the C7500 needed a class to protect the BGP or OSPF traffic the C3640 has the hidden system queue. Using a traffic generator to fill the link, the routing adjacencies were falling down on the C3640 side (it couldn't receive C7500's hello messages). With appropriate QoS the BGP or OSPF session could be stable also under heavy load.
Hope to help Giuseppe. You are slightly confused about which routing protocol is sensitive to bandwidth. It is not OSPF it is EIGRP (and only EIGRP it is not other routing protocols). EIGRP will by default send updates that use 50 percent of the configured interface bandwidth.
There is one other thing that bandwidth is used for (which may be important or not depending on your network environment). The configured bandwidth is used to calculate the percentage busy of the interface. When you do a show interface the amount busy there comes from the configured bandwidth. If you collect usage statistics (CiscoWorks, or MRTG or other software that will report and analyze usage statistics it may be dependent on the configured bandwidth). Hello Vaibhhav, bandwidth is an administrative parameter in each interface type. The real speed of a synchronous serial interface is decided by the clock signal so bandwidth 10000 clock rate 64000 makes a serial interface to run at 64000 bps (command possible if a DCE cable is sensed) and the bw is set to 10,000 kbps.
Bandwidth is used by routing protocols EIGRP and OSPF to calculate interface metric. It is also used as a reference by modular QoS commands to implement commands that contain percentages instead of kbps.
You cannot make a serial interface to run at 10 Mbps by setting bandwidth 10000 Hope to help Giuseppe. Hello, Can you please clarify why I see queues on interface 128kbps while interface loaded only 80kbps? Is it possible to tune this somehow?
Sh int se0/0/0 i bits queue Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 10 Output queue: 25/1000/64/10 (size/max total/threshold/drops) Available Bandwidth 1158 kilobits/sec 5 minute input rate 10000 bits/sec, 25 packets/sec 5 minute output rate 80000 bits/sec, 76 packets/sec. Disclaimer The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage. Posting I'd like to understand whether the link is really overloaded or this can be some carrier issue. On capacity graphs the link doesn't look overloaded, it get about 60% sometimes, but not more Likely link is overloaded, which isn't too hard to do with 128 Kbps. As to capacity graphs, 60% doesn't sound that far off. If your running TCP traffic, TCP flows may probe for available bandwidth by overdriving the link and then backing off by 50%.
So, bandwidth usage tend to be lower than available bandwidth. You can improve on that if you set the TCP receiver's RWIN and router's buffers to the bandwidth delay product. Then a TCP flow will cap itself at link capacity. Also depending on you traffic, most monitoring is a multi-minute average.
Do you think I should ask carrier to check the real link throughput of this link? The issue is that users started concerning that some application works very slowly through this link If you want to confirm you're able to get your full 128 Kbps, try a performance test tool.
As to user complaining about poor performance, not surprising if multiple users are sharing only 128 Kbps. If not already using, FQ might help a little. The link and the explanation that Andrew provide is good. There is one other aspect to consider in which it is not recommended to change the bandwidth to alter the EIGRP metric. EIGRP advertises the lowest bandwidth along the path. So you might change the bandwidth but if there is some segment on the path with bandwidth lower than what you set then some parts of the network will see that lowest bandwidth not the bandwidth that you changes. On the other hand EIGRP advertises the delay cumulative along the path.
So if you change the delay then every part of the network will see the effect of your change. So it is recommeded that you alter delay rather than bandwidth to influence EIGRP metric. But if you still choose to do so you may alter the bandwidth to change the EIGRP metric.
And yes you can also do that on Ethernet. You can still fully utilise your 64k or 128k links. The available bandwidth is more related to QoS parameters. If you are configuring QoS on the interface for example, the value of the available bandwidth is the maximum that can be reserved. This is to ensure that critical traffic like routing protocols, and keepalives are still able to transverse the link. By default, 75% is reserved, but this can be changed using the max-reserved-bandwidth command See http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_command_reference_chapter087f42.html#wp1023531.
I had a 7206 router that I was trying to replace with a 2951 with an NM-1T3/E3 module. When I move the DS3 to the 2951 the DS3 will not come up. To my knowledge there's nothing essentially different from how these two are configured so I'm not sure what I've missed. Hello, It is given by the technical construction of serial interfaces. Out of two devices connected by serial link, one of them is responsible for providing the clocking signal and both devices adapt to that clocking. This clocking responsibility is given to the DCE device, as that is the devices that is also connected to the local loop owned by the WAN provider. It is aware of its bandwidth limitations, therefore it also limits the speed on the serial link by the clocking so that the DTE devices does not overload the physical data-carrying capacity of the local loop.
So, the clocking function is reasonable only on the DCE device. Best regards, Peter.
Hello Alll, Such a stupid question, but i have little bit mess about this. Which WAN interfaces support cisco devices. In curiculums is wrote: Cisco devices support the EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA/TIA-530 serial standards.
Is possible connect to router f.e DB.60 and from this to csu/dsu. Do you have somebody some clear table with explaining about which cable can be use with which WAN technologi? When i use null modem that is means some reduction in the middle of connection, after that i have to use clock rate setup on DCE side (router) And last question clock rate is used which with purpose of synchronisation, not a bit rate / bandwidth.? Dear experts, While trying to change the number of conversation in WFQ, I read that there is relation between the Interface bandwidth and Number of conversation queues in WFQ. For example, for 64 Kbps link No. Of conversation is 16. While testing this, even by changing the Interface Bandwidth command, there is not change in Number of conversation in WFQ.
I am testing this using command 'show interface ser 0/0'. Then I trying to change the Physical serial interface speed. I know 'bandwidth' is not the command. Whether it is correct to use 'clock rate' command or it is in the control of my ISP. Is there any possibility to set the serial interface bandwidth matching to the line speed??
Thanks in advance sairam. You can use any kind of patcker sniffer on the LAN interface lets say a Fastethernet port. Put a hub and in there or if you have a switch span a port on that switch and then capture all data and then you can sort by IP addresses and you should be able to break down the traffic that went across the WAN. To monitor bandwidth down to a 60 second average go to solarwinds.net and look at there performance montior program that comes with the engineers toolkit. Also you can enable netflow on the router and then to go www.crannogsales.com and download the netflow monitor. You can use this product for 24 hours for free very easy to install on windows. If it's a true serial interface, you should see a clockrate.
If it's a serial interface created by a fractional T1/E1 interface, you'll just see that clocks are detected. The 'clockrate' in that case should be identical to 56/64k times the number of channels you have turned up. The rate at the other end should be identical, otherwise, your connection won't work. If you feel you're being shorted on bandwidth, check elsewhere. 'Available bandwidth' is how much bandwidth is remaining available be RSVP-reserved on the interface. If you've configured RSVP to be on by 'ip rsvp bandwith XXX', it's XXX minus any RSVP reservations you have.
If you haven't turned on RSVP, it's meaningless. Hi all, I am trying to enable traffic shaping over a Multilink consisting of 3 T1 serial interfaces. I have to configure shaping 90% of total bandwidth (4.5 Mbps). However, it gives me error message that shaping is restricted to individual serial link bandwidth. Router(config-if)#service-policy output SHAPE-4.5M%4050000 bps is greater than interface Serial1/1.1/1:0 rate (1536000 bps), class 'class-default'%4050000 bps is greater than interface Serial1/1.1/2:0 rate (1536000 bps), class 'class-default'%4050000 bps is greater than interface Serial1/1.1/3:0 rate (1536000 bps), class 'class-default' Is there an option to configure it? This is an OSM module on Cisco 7600 router.
Thanks, Faad. I have two routers 7206 1841 connected point-to-point. But my ISIS is not converging.
Below are my configs R7206! Interface GigabitEthernet0/2 ip address 192.5.1.1 255.255.255.0 ip router isis duplex full speed auto media-type rj45 no negotiation auto isis circuit-type level-1! Interface Serial6/0 bandwidth 2000000 ip address 165.148.120.2 255.255.255.252 ip router isis encapsulation ppp no keepalive serial restart-delay 0 no fair-queue isis circuit-type level-1!! Router isis net 20.0001.0000.0000.0000.00 is-type level-1 redistribute connected! Interface FastEthernet0/1 ip address 192.1.1.1 255.255.255.0 ip router isis speed 100 full-duplex isis circuit-type level-1!
Interface Serial0/1/0 bandwidth 8000000 ip address 165.148.120.1 255.255.255.252 ip router isis encapsulation ppp no keepalive no fair-queue clock rate 8000000 isis circuit-type level-1!! Router isis net 20.0002.0000.0000.0000.00 is-type level-1 redistribute connected! What could be a problem here? I have configured route-map on my two routers connected with a serial cable, my problem is when I do show route-map I dont see matches. Hi I'm using a 7-series MIG to interface to a 64-bit DDR3 SDRAM with a 500MHz memory clock, ie a 1Gbit/s data rate. Thus memory interface bandwidth = 8 GByte/s. I'm using a half-rate AXI4 user interface, which the MIG created as 256 bits wide with a 250MHz user clock - also 8GB/s (32By x.0.25GHz).
However, the AXI4 ARSIZE or AWSIZE signals are limited to 128 bits, which implies that AXI4 can never transfer more than 128 bits simultaneously. This would mean that the AXI4 interface created by the MIG is unable to support more than halfthe data rate of the SDRAM interface. Since I've not found anything in any Xilinx doc or in the MIG GUI warning the user that using an AXI4 interface will essentially half the memory bandwidth, I'm hoping that I'm overlooking something, and that the AXI4 interface on the MIG will in fact use all 256 bit and match the SDRAM transfer rate.
Can anyone reassure me on this point? Thanks, Chris. Hi all, We have 2 sites connected to the main office via FR. We've configured QoS on the frame-relay interface (it's a WIC-1T). - When a 'service-policy output' is applied on each serial interface, and the qos is tested only between one site and the main office, it works well. - When there's a traffic from 2 sites to the main office, the policy-map is no more respected.
- We tried to use map-class and apply 'frame-relay traffic-shaping' with class on serial interfaces, we can see the policy-map respected but the bandwidth is reduced, speed of transfert is really low. We did the test with FTP and File copy between sites. 'When there's a traffic from 2 sites to the main office, the policy-map is no more respected. ' When you have multiple sites that can send traffic to one site, it can be easy to oversubcribe the one receiving site's bandwidth (from a cloud to it). The 'fix' is to traffic shape the sending sites such that their transmissions don't oversubscribe the receiver's link.
The disadvantage of this, when only one site is sending, it can not take advanatage of bandwidth not being used by the other sending site(s). If you do shape multiple sending sites, they don't have to be all in the same proportion.
Also, although no oversubscription guarantees there won't be cloud egress congestion, you can configure shaping to allow some oversubscription. PS: One of the feature of MPLS vs.
Frame-relay is MPLS often can provide QoS so you can better manage congestion as traffic exits the cloud. 'FECPM PM doesn't support clock rate 0' Please attach a DTE cable and do a shut/no shut on the interface and this will remove the clockrate. Here's a basic summary of the possible cause: Cisco DB-60 serial interfaces can be used for many different types of cables, so when one is connected, the router goes through a routine to determine what kind of cable it is. DTE cables have certain pins 'jumpered' together, so the serial interface can detect that it is a DTE cable; DCE cables do not have this.
As a result, if you've never plugged a DTE cable into the interface (or any cable for that matter), the router assumes that the interface is to be used as a DCE device, for which the clockrate command is mandatory and cannot be removed. A quick fix: plug a DTE cable into the interface, do a 'shut' then 'no shut' on the interface, wait for few seconds for the serial interface's controller to figure out that it's a DTE cable, and the clockrate command should disappear from your configuration. To verify, type 'show controller serial 0' to check what it thinks the cable type is (V.35 DCE, RS-232 DTE, etc). Once this information has been updated in the controller, you should be good to go!
Did you do a 'shut/no shut' when you connected the DTE cable? Hi, I am trying to configure LFI on my two routers connectected point-to-point but I cannot ping the next router. I am still on my learning phase. Please assist here below are my configs: router 1 (2821)! Class-map match-any realTime match any!! Policy-map Mpho class realTime bandwidth 500!
Interface Serial0/0/0 ip address 165.x.x.x.255.255.252 encapsulation frame-relay no keepalive clock rate 8000000 frame-relay traffic-shaping frame-relay interface-dlci 100 ppp Virtual-Template1 class Mpho!! Interface Virtual-Template1 bandwidth 500 no ip address no peer default ip address ppp multilink ppp multilink interleave ppp multilink fragment delay 20 service-policy output Qos! Router rip network 165.148.0.0 network 192.1.1.0!
Hastings Entertainment Employee Handbook. Map-class frame-relay any! Map-class frame-relay Mpho! Router 2 (3845)! Class-map match-any realTime match any!!
Policy-map Mpho class realTime bandwidth 500! Interface Serial0/0/0 bandwidth 2000 ip address 165.x.x.x.255.255.252 encapsulation frame-relay no keepalive frame-relay traffic-shaping frame-relay interface-dlci 100 ppp Virtual-Template1 class Mpho max-reserved-bandwidth 100! Interface Virtual-Template1 bandwidth 500 no ip address ppp multilink ppp multilink interleave ppp multilink fragment delay 20 service-policy output Mpho!
Router rip network 165.148.0.0 network 192.2.1.0! Map-class frame-relay Mpho! Map-class frame-relay realTime! Map-class frame-relay any!
The encapsulation type does not dictate the usage of clock rate. On a serial connection, one device must provide clocking.
If you have a small lab configured with a P2P connection, you will notice that the cables will have a DTE-DCE. The DCE side must provide the clocking and this device must have the clock rate. In a full blown network when you employ a carrier for your WAN connection, the carrier often provides the clocking so the carrier becomes the DCE unit and you configure both of your CSUs as DTE devices. Encapsulation enables the ability to provide some extra features. For instance, with PPP you get authentication and bandwidth aggregation with MultiLink PPP. --- Please rate helpful posts.
Hello folks - I am using a Cisco router as a frame relay switch and using 3 other routers in a hub and spoke configuration. R1 is the hub and R2 and R3 are spokes.
R4 is the frame relay switch. None of the pings are going across. Below is my configuration.
Not sure where am I going wrong. Any help would be greatly appreciated. Hello, Hmmm - everything seems to be okay here. Are you suggesting that the pings are not answered? Can you please turn on the debug ip packet detail and debug ip icmp on a router and then try pinging some other router in your FR network? Have these two debugs running on both the sender and recipient of the ping so that we can see if the ping is being successfully sent and whether it is received correctly.
Also, are you running these experiments on real hardware or are you using any simulator for these? The Serial1/0 interface suggests that dynamips or similar tool is being used.
If this is the case, I suggest double-checking its configuration and removing all stale temporary files - they may be causing the problem. Best regards, Peter. I have a test lab setup and cant seem to be able to ping hosts that are connected over a serial connection, but I can ping from those hosts with no problem.
I have 2 Layer 3 switches and 2 2501 routers. SWITCHA --(ethernet)--ROUTER1--(serial)--ROUTER2--(ethernet)--SWITCHB From Router1, I can ping all interfaces connected on SWITCHA and ROUTER2 but NOT SWITCHB. From ROUTER2, I can ping all interfaces connected on SWITCHB and ROUTER1 but NOT SWITCHA. From SWITCHA SWITCHB, I can ping any interface on any router or switch. Is this becasue of a serial interface issue? Router1 is connected to Router2 via a serial cable.
Clock rate is set to 4000000 on Router2 serial interface so I can ping the interfaces with no problem. Anyone know what this is? ROU04MAN#sh controllers s0/1 Interface Serial0/1 Hardware is Quicc 68360 DTE V.11 (X.21) TX and RX clocks detected. I'm looking at the serial interface on a 1751 router that has a single Frame relay PVC running on it and it shows the following throughput. (It has a 48K CIR and a 64K access speed.The serial interface has the bandwidth 64 command implemented.) Available Bandwidth 48 kilobits/sec 5 minute input rate 29000 bits/sec, 37 packets/sec 5 minute output rate 25000 bits/sec, 40 packets/sec Why does the available bandwidth only display 48/kilobits a second when i would have thought it should be 64? Also if we're tranmitting below the Access rate but above the available bandwidth will this lead to dropped packets/latency? (assuming in this case that the FR network isn't congested) Is there any way of showing over time how much of a workout the output queue's are getting?
I am trying to prove that some of our sites need higher bandwidth however this is hard to prove because the people that monitor our network are only getting alarms when the line is over-utilised for 10 minutes or so. Obviously with Citrix traffic latency is a big problem and people tend to notice on a minute by minute basis how slow things are going. I know for a fact that were are getting output drops on the interface but what can be considered acceptable? Output queue: 0/1000/64/39 (size/max total/threshold/drops) Last clearing of 'show interface' counters 00:34:20 thanks. There really is no relationship.
What you'll see is a device (like a radio transceiver) that will do a certain amount of bandwidth over the wireless link, On the other side of our hypothetical 'black box' transceiver, you'll get some flavor of standard interface; either an Ethernet/Fast Ethernet/Gig Ethernet or (a little closer to your question) a standard serial interface that'll probably be presented on a v.35 / Winchester connector. That interface will (probably) be a DCE interface (or maybe several), just like a CSU/DSU (because it probably is that or something similar). The 'black box' will do the signal conversion from serial / V.35 into whatever signaling it uses to make the wireless transmisssion. In the case of a traditional microwave radio, it was fairly common for them to handle up to three DS3s (45 Mbps each). So what I'd expect is that if you had a radio system that could handle ~2 Mbps, you'd probably have a single V.35 interface that'd handle a T1/DS1 or E1. If you had a radio that could handle 1.2 Gig of data wirelessly, then I'd expect a GigE inerface, or perhaps one or more OC3, or an OC12. There are a variety of wireless systems in practically all bandwidth sizes, on just about any chunk of the RF spectrum, up to and including light (LASER - see the Canon Cannobeam).
Once the wireless bandwidth is deterined, then the router-side interface will be appropriate for that kind of bandwidth. Good Luck Scott. Hi Richard, Yes, this is normal on Frame-Relay Traffic Shaping as the calculations are based on the frame-relay mincir which by default is 1/2 of the CIR.
You can see your current mincir value by typing show frame-relay pvc 400. The mincir is the value used when the circuit receives congestion notification. If you don't want your circuit to lower its speed when these packets are received, you can have your mincir value to be equal to your cir, so your map-class would be as followed: map-class frame-relay P-class frame-relay cir 15000000 frame-relay mincir 15000000 service-policy output P-QoS HTH, __ Edison. I had used the interface serial 0/0/0 with 'NO FAIR-QUEUE' command but now it doesn't seems that I could get it out. Even after I erase startup-config and do reload.
Someone told me if I just put FAIR-QUEUE eventually this command will go away after you erase the startup-config reload but I proved it wrong, that NO FAIR-QUEUE is still in my interface serial. If anyones could help me to take this thing out of my serial interface I would really appreciated. R1#sh run b interface interface Loopback1 description Engineering Department ip address 10.1.1.1 255.255.255.0 ip ospf network point-to-point! Interface FastEthernet0/0 ip address 10.1.200.1 255.255.255.0 ip ospf cost 50 ip ospf priority 10 duplex auto speed auto! Interface FastEthernet0/1 no ip address shutdown duplex auto speed auto!
Interface Serial0/0/0 bandwidth 64 ip address 10.1.100.1 255.255.255.0 no fair-queue ====================== Here it is clock rate 64000 Thx in advance for your help! I have this config on our routers for the serial interface on the near side and far side. Hi, I have a quiestion about design of EIGPR. Here is the topology. ****************************************************************************** [Router_A] interface Serial0/0 bandwidth 64 ip address 172.19.0.2 255.255.0.0 no fair-queue!interface Serial0/1 bandwidth 64 ip address 172.16.0.1 255.255.0.0 clock rate 64000!router eigrp 1 network 172.16.0.0 network 172.19.0.0 auto-summary [Router_B] interface Serial0/0 ip address 172.16.0.2 255.255.0.0 no fair-queue!interface Serial0/1 bandwidth 64 ip address 172.17.0.1 255.255.0.0 clock rate 64000!router eigrp 1 network 172.16.0.0 network 172.17.0.0 auto-summary! [Router_C] interface Serial0/0 ip address 172.17.0.2 255.255.0.0!interface Serial0/1 bandwidth 64 ip address 172.18.0.1 255.255.0.0 clock rate 64000!router eigrp 1 network 172.17.0.0 network 172.18.0.0 auto-summary [Router_D] interface Serial0/0 ip address 172.18.0.2 255.255.0.0 no fair-queue!interface FastEthernet0/1 ip address dhcp duplex auto speed auto!interface Serial0/1 bandwidth 64 ip address 172.19.0.1 255.255.0.0 clock rate 64000!router eigrp 1 network 172.18.0.0 network 172.19.0.0 no auto-summary! ****************************************************************************** And, here is the behavior.
For the bandwidth command, assume that i have a remote site (F.R with speed 256kbps), and i applied the following at the remote site router: policy-map shaping class one bandwidth percent 30 class two bandwidth percent 30 class three bandwidth percent 10 class class-default fair-queue And applied this policy at the interface (out), when i issued the show policy-map interface. Hi My network is as follows. R1 via s0 is connected to R3 s1 R2 via s0 is connected to R3 s2 R3 is the NAT border router.
R1 is inside with private IPs and R2 is an outside router on the Internet with public IPs in R1 interface serial 0 ip address 10.10.10.1 255.255.255.0 bandwidth 64 in R3 interface serial 1 ip address 10.10.10.2 255.255.255.0 clock rate 64000 ip nat inside interface serial 2 ip address 20.20.20.2 255.255.255.0 clock rate 64000 ip nat outside ip nat inside source static 10.10.10.1 20.20.20.2 in R2 inteface serial 0 ip address 20.20.20.1 255.255.255.0 bandwidth 64 The problem that I have is when I give the command in interce serial 2 in R3 ip nat outside I cannot ping from R2 to R3. But if I remove the command ip nat outside from interface serial 2 in R3, then I can ping from R2 to R3. Can someone please tell me where have I gone wrong? Thank you very much! Hi Nadine Yes, I guess you have a point there.
Because (I can't remember it now, I'll update it on Monday) if I give a default route in R1, it works I guess. But as I said I can't remember 100% about it, but let me try that out and update you on Monday. But then there will be another problem. Then how can we check if S2 in R3 is up or not, if we can't ping to that interface's IP address.
When we ping, if we don't get a reply, the problem could be somewhere else even. This reminds me of the command 'ip unnumbered' You can't ping and see if that interface is up or not. Thanks a lot!
PE5-MAL-BE(config-if)# service-policy output ccna-sp-nan1-out-MIPS I/f Serial1/1 class class-default requested bandwidth 34360 (kbps) Available only 34002 (kbps) interface Serial1/1 mtu 1500 no ip address encapsulation frame-relay IETF no ip mroute-cache logging event subif-link-status logging event dlci-status-change tx-ring-limit 56 max-reserved-bandwidth 100 service-policy input ccna-sp-nan1-in-MIPS framing g751 dsu bandwidth 34010 clock source internal serial restart-delay 0 frame-relay lmi-type ansi frame-relay intf-type dce. I wish to transport VoIP via a satellite link. I am concerned about bandwidth consumption in idle and active states and also clock rate configuration for Wan interface. The aggregate link rate is 256Kbps.
When configuring clock rate do i refer to aggregate or to a reserved limit? Or is this figure purely for accurate diagnosis of statistical data? What is the idle bandwidth consumed per EM trunk? What amount of bandwidth is consumed when in active call condition? If anyone can also advise on FXO/FXS consumption states that would be very welcome. Well the problem you are getting with the errors is probably because you were using your internal clock instead of your ISP's clock to send your data. You should be accepting timing from your ISP unless they have it setup to use Terminal Timing on there end, which I doubt.
One big question I have is do you have some type of patch panel in between or directly connecting from router to ISP equipment via the cisco cable. I would think the only way to get the serial link to not read a clock rate is to throw a DTE serial cable on the port to reset it.
Dear all, Nested Policy and Reference Bandwidth for Child-Policy In HQF when you configure a nested policy with a child queueing policy under a parent shaping class, the reference bandwidth for the child queueing policy is taken from the following: minimum (parent shaper rate, parent class's implicit/explicit bandwidth guarantee). When you do not define bandwidth for the parent class, the interface bandwidth divides equally among all parent classes as the implicit bandwidth guarantee. The example below shows a nested policy applied on a serial interface of 1536 Kbps. The 1536 Kbps is equally shared, as the implicit bandwidth, among parent classes parent-c1 and class-default. For the parent class, the shaping rate of 1200 Kbps is the maximum, while the implicit guarantee of 768 Kbps is the minimum. What will the details of the implicit guarantee be? (Example) 768Kbps = 1536Kbps÷2.
Disclaimer The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk. Liability Disclaimer In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage. Posting There were changes to how QoS operates with HQF.
You might review: http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/qos_frhqf_support.html. There are a lot of variables here. First off, you cannot go over the physical rate of an interface.
A gig port can only transmit 1000Mbps. On some switches you cannot even achieve that speed, for packets require processing which can slow down the transmission. But a Gig port is clocked in a fashion that it can transmit 1000Mbps.
If your ISP says you have a 4Mbps link, they are rate-limiting you using some sort of policer, which probably does not care what type of traffic is coming into their interface. They simply drop excessive packets over your 4Mbps rate. Now I am a little confused about what Netscout is reporting.
When you say 7Meg does that mean it is sending a 7Meg file or did you mean it is able to get a transmission rate of 7Mbps? I would probably investigate what Netscout is doing at a lower layer, by downloading wireshark (freeware capture tool) and looking at what type of packets Netscout is sending across the ISP. One key thing to look for is retransmission in TCP packets. If you see these it is probably due to the ISP dropping some TCP packets and the NetScout having to retransmit them. The available bandwidth statement actually relates to the queueing method employed on an interface(The default being WFQ). What happens is as follows: 25% of the bandwidth on an interface is reserved by default for the 'default' queue, this queue is used for traffic such as routing updates e.g. Things that are not necessarily defined within your queueing policy.
As an example you have a 64k point to point link on which you would like to deploy CBWFQ. If you issue a show interface command you will get an available bandwidth of 48Kb/sec (75% of 64kb), this means that your queues cannot exceed 48kb of bandwidth allocation. This could be a problem especially on low-bandwidth links, to bypass this you can issue the max-reserved-bandwidth 100 statement on the interface, this makes the full bandwidth of the interface available for your queue but you have to keep the defaults in mind when doing this. CBWFQ creates a default queue as well but you have to remember not to allocate all the bandwidth to your various queues as this would obviously leave no bandwidth for the default.
A good rule is to reserve at least 10% of a link for default traffic or in turn change the max-reserved-bandwidth to 90 instead of a 100 but this would probably leave you with two default queues when using CBWFQ. Hope this is what you were looking for. Hello, I have an AS5300 router. I want to use one of the router's e1 ports for leased line. I can't see any problem with this but it doesn't work.
The line protocol is down. What could be the problem? I'm able to see the loop at the far end so the line seems to be ok. Thanks, Andras Here is the config of the AS5300 controller E1 0 clock source line primary line-termination 75-ohm channel-group 1 timeslots 1-30! Interface Serial0:1 bandwidth 1920 ip address 192.168.18.33 255.255.255.252 encapsulation ppp! Here are the outputs of the sh commands: #sh controllers e1 0 E1 0 is up. Applique type is Channelized E1 - unbalanced No alarms detected.
Version info of Slot 0: HW: 1, Firmware: 4, PLD Rev: 11 Framer Version: 0x8 Manufacture Cookie Info: EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x49, Board Hardware Version 3.1, Item Number 800-3883-2, Board Revision B0, Serial Number 21814499, PLD/ISP Version 0.1, Manufacture Date 14-Aug-2000. Framing is CRC4, Line Code is HDB3, Clock Source is Line Primary. Hello folks I'm currently preparing a new 1841 with a HWIC-1T serial interface. I need to preconfigure the router which will then be shipped to where it is going to be used.
The router currently does not have a serial connection attached to it (as I don't have a serial connection). I've reached the configuration of the serial interface and I'm having some problems removing the 'clock rate 2000000' command to make it a DTE. I've tried the following commands: no clock rate no clock rate 2000000 default clock rate We already have a router onsite with a working serial interface and that one does not have any clock rate set. Can anyone help me here?:/ Thanks in advance -- Jesper.
I have a setup of two Cisco 1750 routers connected back to back. Both the routers have WIC-2T serial interface cards. Scenario-1: Both RouterA nd RouterB are connected back to back through Serial Interface0.Encapsulation is HDLC on both sides. Clock Rate is enabled on RouterB(DCE). RouterA Serial Interface IP address is 20.1.1.1/8. RouterB Serial Interface IP address is 20.1.1.2/8. 'Show INterface Serial 0' command shows that both interfaces are up and protocol is up.
But I am not able to ping the S0 interface of both the routers from the respective consoles. In Router A 'sh cdp neighbor' command doesn't show any neighbors. In Router B, 'sh cdp neigbor' cmd shows the details of Router A. Even if I set the static routing, I am not able to ping. Immediately after booting Router A's serial interface reliability is 250/255 and it gradually decreases to 150/255.
Even after clearing the counters, Router A's serial interface shows enormous input errors and no output error. Scenario-2: I connected Router A's serial interface 1 to Router B's serial interface 0., with the above configurations. Absolutely no problem.I am able to ping the serial interfaces of both the routers and the reliability factor of serial interfaces is 255/255. Can anyone guide me what went wrong in scenario 1? Thanks and Regards Raj. Hi, Please, excuse my bad English.
I have a MEGA 865 with mobo MS-6797. I try to use new ram: 2GB PC3200 DDR 400 RAM 400Mhz ADVANCE MODULES. But I receive long beep on boot-up. I flash already the last bios ver 1.3 I try after to use my old 512 Mo PC3200 DDR SDRAM AND 1 new IGB.
It boot normally than but doesnt use the new memory. BUT Programs like CPUZ or Everest read well the SPD.
Is there a compatibility issue or just a bad SDRAM? When I do show interface serial command on router Im getting a statement Available Bandwidth 576 kilobits/sec I would like to know what that mean. The port speed is Fractional T1 and I have single DLCI with 512K. When I set the bandwidth on main interface to 512K and do the show interface command the Available Bandwidth statement show 384kilobits/sec available. Example: interface Serial0/1 bandwidth 512 But, if I set the bandwidth to 768K on interface Im getting a statement Available Bandwidth 576 kilobits/sec Example: interface Serial0/1 bandwidth 768 I would like to know what Available Bandwidth statement mean and what significant of available bandwidth 384K or/and 576K showing in available bandwidth statement. Any suggestions welcome.
Thanks Output Example when bandwidth set to 768 in s0/1. Hello James, John is right. You can directly configure PPP encapsulation only on serial and ISDN interfaces. While PPP can also be used on Ethernet, Frame Relay, ATM or Packet-over-SONET interfaces, these deployments are more complex and for simplicity, I suggest not taking them into consideration now.
Regarding the order of configuration commands, the only rule is to issue the encapsulation ppp before entering PPP-specific commands like ppp authentication, ppp pap, ppp chap, etc. Otherwise, the order does not matter. Your configuration has a small inaccuracy - the username command would not be placed into the interface configuration but rather in the global configuration level, even if you issue that command in interface configuration mode. Best regards, Peter.
Hello, I've created a simple EIGEP lab network in GNS3 so I can understand the routing and topology tables better. Every router can ping each other, but I have yet to add loop backs as this may confuse things further for me. I have been trying to influence the path from R1 to R5 by using the 'bandwidth' command on the serial interfaces on R1 to change the path thus the successors and feasable successors, but the bandwidth command seems to make no difference to the routing table or topology table, should I be using something else to influence the eigrp paths? I want to make some links 256kbps and some T1 lines and see what happens. Does the clock rate come into play?
I used the bandwidth command only on the interfaces between R1 R2 and R1 R3, so all other links were kept at their default which I think is 1544kbps? Under the serial interfaces I just used bandwidth 512000 to lower the speed (well that's what I thought). I have been watching EIGRP lab videos and their topology labs show different speeds on their links so I what to understand this, but it has shown be that it isn't straight forward. You mention using the delay which I believe is the 3rd K metric value?
I think the default is 1 like the bandwidth, so would it be normal to raise this to say 2 for slow links and 3 for very slow links? Thanks again for your detailed replies. Kindest Regards. Hello I'm working in deploying QoS in a branch office but I'm getting poor voice quality on calls.
Here is the configuration of the QoS parameters ***************************************** class-map match-all VOZ match dscp ef class-map match-all VOZ(SIGNAL) match dscp af31 class-map match-all APLICACION-CRITICA match access-group name AS400!! Policy-map POLITICAS-QoS class VOZ priority percent 60 class VOZ(SIGNAL) bandwidth percent 5 class APLICACION-CRITICA bandwidth percent 10 class class-default fair-queue *****************************************!!! Interface FastEthernet0/0 description LAN ip address 10.12.1.1 255.255.255.0 speed auto! Interface Serial0/0 description Link to HQ bandwidth 128 ip address 192.168.50.42 255.255.255.252 service-policy output POLITICAS-QoS load-interval 60 compress stac! Interface BRI1/0 no ip address shutdown!
Ip classless ip route 0.0.0.0 0.0.0.0 Serial0/0 ip route 16.0.0.0 255.255.255.0 Serial0/0 no ip http server! I'm using CAR bandwidth limit to limit ftp outbound connection to external ftp site. I have an access listi like this: access-list 102 permit tcp any any range 20 21 and on serial interface connected to internet i have rate limit output access-group rate-limit 102 8000 1500 2000 conform-action set-prec-continue 4 exceed-action drop. Now if i connect to an ftp site my bandwidth is not limited to 8kb/s, but continue to download at high speed rate. I0m missing somethings? If i remove rate-limit. I'd like a second opinion on the following config.
I don't believe I need CEF on in the following config if MLPPP is doing its job. Any comments? Side A version 12.4 no service pad service timestamps debug uptime service timestamps log datetime msec localtime service password-encryption! Hostname Side_A!!
Enable password! No aaa new-model! Resource policy!
Ip subnet-zero!! Ip cef no ip domain lookup!!
Multilink virtual-template 1!!!!! Interface Loopback0 ip address 192.168.1.57 255.255.255.252! Interface FastEthernet0/0 ip address 192.168.1.50 255.255.255.248 duplex full! Interface Serial2/0 no ip address encapsulation ppp dsu bandwidth 44210 framing c-bit cablelength 10 clock source internal serial restart-delay 0 ppp multilink! Interface Serial2/1 no ip address encapsulation ppp dsu bandwidth 44210 framing c-bit cablelength 10 clock source internal serial restart-delay 0 ppp multilink! Interface Virtual-Template1 ip unnumbered Loopback0 ppp multilink ppp multilink fragment disable! Ip default-gateway 192.168.1.49 ip classless ip route 0.0.0.0 0.0.0.0 192.168.1.49 ip route 192.168.1.88 255.255.255.252 192.168.1.58 ip route 192.168.1.90 255.255.255.255 192.168.1.58!
No ip http server!!! End Side_A# ------------------------------------------------------ Side B! Version 12.4 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption!
Hostname Side_B!! Enable password!
No aaa new-model! Resource policy!
Ip subnet-zero!! Ip cef no ip domain lookup!! Multilink virtual-template 1!!!!!
Interface Loopback0 ip address 192.168.1.58 255.255.255.252! Interface FastEthernet0/0 ip address 192.168.1.89 255.255.255.252 duplex full! Interface Serial1/0 no ip address encapsulation ppp dsu bandwidth 44210 framing c-bit cablelength 70 serial restart-delay 0 ppp multilink!
Interface Serial1/1 no ip address encapsulation ppp dsu bandwidth 44210 framing c-bit cablelength 70 serial restart-delay 0 ppp multilink! Interface Virtual-Template1 ip unnumbered Loopback0 ppp multilink ppp multilink fragment disable! Ip default-gateway 192.168.1.57 ip classless ip route 0.0.0.0 0.0.0.0 192.168.1.57!
No ip http server!!!! Gatekeeper shutdown!! Line con 0 stopbits 1 line aux 0 stopbits 1!!
You are correct about why I used a connected subnet. I'll give it a shot as seperate networks. The mlppp is supposed to automatically inject a route for the link. I've added statics as I'm running a BGP peer across this link. The link is working - routing and forwarding. The reason I've been questioning the link at all is that I'm not seeing more than 9 Mbps across the two. I've begun to wonder if the system is misreading the link speed and only allowing 4.2 Mbps based on the 42xxx kpbs of the modem speed.
More testing this week. Hi, After reading lots of documents and countless tries I had to ask for your guidance. I have a ZESTET1 Ethernet board with Spartan XCS1400A FPGA installed. This board has 1 Gbps ethernet interface and a TCP-IP offload engine. My main goal is to interface this board with Analog devices AD9229 ADC, ADC has serial LVDS interface and a transfer rate of 480 Mbps. A DDR data clock and frame clock is generated for data capturing. ZESTET1 board runs at 125 MHz, but the data clock of ADC is 240 MHz so I am having trouble acquiring data and streaming it through ethernet card in real time.
I tried using FIFO but I failed. Seriosuly I created a big mass. Any ideas and guidance are appreciated. Thanks for your time. AD9229 Datasheet ZestET1 Solved!
Go to Solution. I cannot get two frame relay serial interfaces to communicate.
Can any body help. Why wont Serial1/0 is up, line protocol is down (looped) ping each other? Router 1 --- Current configuration: 1465 bytes! Upgrade fpd auto version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption! Hostname router2! Boot-start-marker boot-end-marker! Logging message-counter syslog!
No aaa new-model ip source-route ip cef!!!! No ip domain lookup no ipv6 cef! Multilink bundle-name authenticated!!!!!!!!!!!!!!!!
Memory-size iomem 0 archive log config hidekeys!!!!!!!!! Interface FastEthernet0/0 no ip address shutdown duplex half!
Interface Serial1/0 ip address 10.0.0.1 255.255.255.0 encapsulation frame-relay serial restart-delay 0 clock rate 112000 frame-relay interface-dlci 150 frame-relay lmi-type cisco! Interface Serial1/1 no ip address shutdown serial restart-delay 0!
Interface Serial1/2 no ip address shutdown serial restart-delay 0! Interface Serial1/3 no ip address shutdown serial restart-delay 0! Interface Serial1/4 no ip address shutdown serial restart-delay 0! Interface Serial1/5 no ip address shutdown serial restart-delay 0!
Interface Serial1/6 no ip address shutdown serial restart-delay 0! Interface Serial1/7 no ip address shutdown serial restart-delay 0! Ip forward-protocol nd no ip http server no ip http secure-server!!!!!!!!! Mgcp fax t38 ecm!!!!
Gatekeeper shutdown!! Line con 0 exec-timeout 0 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 login!!
End --- Router2 ---- Current configuration: 1467 bytes! Upgrade fpd auto version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption! Hostname router1! Boot-start-marker boot-end-marker! Logging message-counter syslog! No aaa new-model ip source-route ip cef!!!! Cars Cdp 2 11 3 Cracker.
No ip domain lookup no ipv6 cef! Multilink bundle-name authenticated!!!!!!!!!!!!!!!! Memory-size iomem 0 archive log config hidekeys!!!!!!!!! Interface FastEthernet0/0 no ip address shutdown duplex half! Interface Serial1/0 ip address 10.0.0.254 255.255.255.0 encapsulation frame-relay serial restart-delay 0 clock rate 112000 frame-relay interface-dlci 150 frame-relay lmi-type cisco!
Interface Serial1/1 no ip address shutdown serial restart-delay 0! Interface Serial1/2 no ip address shutdown serial restart-delay 0!
Interface Serial1/3 no ip address shutdown serial restart-delay 0! Interface Serial1/4 no ip address shutdown serial restart-delay 0! Interface Serial1/5 no ip address shutdown serial restart-delay 0! Interface Serial1/6 no ip address shutdown serial restart-delay 0! Interface Serial1/7 no ip address shutdown serial restart-delay 0! Ip forward-protocol nd no ip http server no ip http secure-server!!!!!!!!!
Mgcp fax t38 ecm!!!! Gatekeeper shutdown!! Line con 0 exec-timeout 0 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 login!! Hi John, In Frame Relay, devices depend on Local Management Interface (LMI) signalling - a helper protocol used on a per-link basis that allows the attached devices to verify their liveliness and to discover the individual DLCIs and their status. The LMI is an asymmetrical protocol in that the devices are designated either as DTE or DCE devices. The Frame Relay DTE device is the endpoint of a virtual circuit, usually a router. DTE devices emit LMI Status Enquiry messages to find out about DLCI numbers and their status, and expect to receive a LMI Status Reply back.
This Status Reply is generated by the DCE device which is usually a Frame Relay switch. Therefore, DTE devices send Status Enquiries, DCE devices send Status Replies. It does not work in reverse: a DTE device cannot send Status Replies, and a DCE device cannot send Status Enquiries. If a DTE device does not receive replies to its Status Enquiry messages, it assumes that the opposite device does not work or does not speak Frame Relay, and puts its interface into up/down state. Similarly, if a DCE device does not receive periodic Status Enquiries, it assumes that the opposite device does not work or does not speak Frame Relay, and also declares a 'line protocol down' condition. If you are not using the serial interface then it wont do anything. If you are using the serial interface, and are acting as the DCE (pretty sure its DCE and not DTE) then you must use clockrate command.
It is used when you are providing clocking on a serial interface to link up a connection. Normally, the router will determine if you are using a DCE or DTE connection and use the clockrate if it is needed. If there is no connection, then the default is to show the clockrate command, I believe. Basically, if you are not using the interface, then it doesnt hurt to leave it in. If you are using the interface, then it needs to be set to the right value. Hello to all.
I have 1 question please. I want to know the real memory bandwidth for MSI GeForce FX5700 TD128(memory: Samsung). I found on MSI website this: GeForce FX 5700 Graphics Core: 256-bit Memory Interface: 128-bit Memory Bandwidth: 14.4GB/sec. Fill Rate: 1.7 billion pixels/sec. 356 million Memory Data Rate: 550 MHz Pixels per Clock (peak): 4 Textures per Pixel: 16 RAMDACs 400 MHz in MSI FX Series Quick User's Guide i found No.
For memory bandwidth 8,8!!! GB/sec(MSI GeForce FX5700 TD128) Quick User's Guide Version: 5.0, November 2003, G52-V1NFX07 Please remail and explain. Hello to all. I have 1 question please. I want to know the real memory bandwidth for MSI GeForce FX5700 TD128(memory: Samsung). I found on MSI website this: GeForce FX 5700 Graphics Core: 256-bit Memory Interface: 128-bit Memory Bandwidth: 14.4GB/sec.
Fill Rate: 1.7 billion pixels/sec. 356 million Memory Data Rate: 550 MHz Pixels per Clock (peak): 4 Textures per Pixel: 16 RAMDACs 400 MHz in MSI FX Series Quick User's Guide i found No. For memory bandwidth 8,8!!! GB/sec(MSI GeForce FX5700 TD128) Quick User's Guide Version: 5.0, November 2003, G52-V1NFX07 Please remail and explain.
Would there be a significant difference between the Geforce 770 2gb ram vs the 780 Ti in expected performance with Premier Pro? I am looking to buy a new video card today and you assistance would be much appreicfated. The specs below looks very favorable for the 780 but I would like to know if those specs look like they would make a singificant notibile difference in special effects video editing?? Specs: GTX 780 TI GPU ENGINE SPECS:CUDA Cores2880Base Clock (MHz)875Boost Clock (MHz)928Texture Fill Rate (GigaTexels/sec)210GTX 780 TI MEMORY SPECS:Memory Speed7.0 GbpsStandard Memory Config3072 MBMemory InterfaceGDDR5Memory Interface Width384-bitMemory Bandwidth (GB/sec)336 GTX 770 GPU ENGINE SPECS:CUDA Cores1536Base Clock (MHz)1046Boost Clock (MHz)1085Texture Fill Rate (billion/sec)134GTX 770 MEMORY SPECS:Memory Speed7.0 GbpsStandard Memory Config2048 MBMemory InterfaceGDDR5Memory Interface Width256-bitMemory Bandwidth (GB/sec)224.3Any assistance is appreciated! Hello and thank you for your respond.
Although I am still a bit more confused so I try to be more specific in this reply. As I mentioned the correct answer is there is no CSU/DSU is in use and No clock rate is set. So there is no DTE serial cable attached as you replied. What I like to know is How did we conclude there is no clock rate set? Is it becasue the clock rate is already set to the default version 200000? And also how can I verify that the interface didn't have a DTE cable attached to it?
Do I verify this by looking at the result, Line that says 'DCE 530'? I hope I was more clear in this reply, Thanks again.
Here is an output of a show controllers for me.
Cables After you install the serial WIC, use the appropriate serial cable to connect the WIC’s serial port to one of the following types of equipment. (See.): • An asynchronous modem, if connecting to an analog telephone line • A synchronous modem, DSU or CSU, or other DCE, if connecting to a digital WAN line The 1-port serial WIC has a DB-60 serial port, whereas the 2-port serial WIC and the 2-port A/S WIC have Cisco smart serial ports.
Use the correct cable for your serial WIC. The serial cable attached to a smart serial port determines the port’s electrical interface type and mode (DTE or DCE). Types of Cables for 1- and 2-Port Serial WICs Six types of serial cables (also called serial adapter cables or serial transition cables ) are available from Cisco Systems for 1- and 2-port serial WICs: • EIA/TIA-232 serial cable assembly • EIA/TIA-449 serial cable assembly • V.35 serial cable assembly • X.21 serial cable assembly • EIA/TIA-530 serial cable assembly • EIA/TIA-530A serial cable assembly All serial cables provide a universal plug at the interface card end. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIA/TIA-232 serial cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.
All serial interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector at the network end and DCE with a receptacle at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only. LED Status Due to the high port density on the HWIC front panels, the amount of LED status per port is limited. There is no room for individual LEDs to indicate transmit or receive activity, or clock status. HWIC-4T and HWIC-4A/S have a single bi-color LED to monitor status over four ports.
HWIC-8A has a single LED to monitor status over 8 ports. There are two LEDs on the HWIC-8A/S-RS232 that monitor 4 ports each.
On the HWIC-16A, two LEDs monitor 8 ports each. See for the definition of HWIC LED Status. Cables After you install the serial HWIC, use the appropriate serial cable to connect the HWIC ports to the following types of equipment: • Asynchronous modems, if connecting to analog telephone lines • Synchronous modems, data service units/channel service units (DSUs/CSUs), or other DCEs, if connecting to digital WAN lines The 4-port serial HWICs have 26-pin 12-in-1 Cisco smart serial ports, whereas the 8- and 16-port serial HWICs have 68-pin serial ports.
Use the correct cable for your serial HWIC. Cables for 4-Port Serial HWICs The 4-port serial HWICs use Cisco smart serial cables. Six types of smart serial cables are available: • EIA/TIA-232 serial cable assembly • EIA/TIA-449 serial cable assembly • V.35 serial cable assembly • X.21 serial cable assembly • EIA-530 serial cable assembly • EIA-530A serial cable assembly All of these serial cables provide a 26-pin plug at the interface card end. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIA/TIA-232 serial cable is a DB-25 connector, the most widely used EIA/TIA-232 connector. See for network end connectors and pinouts of these cables.
The EIA-530 and EIA-530A serial cables are available in DTE format only. All other cables are available in either DTE or DCE format. Related Documentation Related documentation is available on Cisco.com or on the Product Documentation DVD.
For more information, see the. •, tech note •, tech note •, tech note • • “ ” chapter of the Cisco 1700 Series Router Software Configuration Guide • “Configuring Serial Interfaces” chapter of the Cisco IOS Interface Configuration Guide for your Cisco IOS software release •, Cisco IOS Release 12.2(2)T feature module •, Cisco IOS Release 12.1(1)T feature module •, sample configuration •, sample configuration •, sample configuration •, sample configuration •, sample configuration •, sample configuration.