Cisco Switching/Routing :: 6513 - Transmit Discards On Certain Interface
Feb 25, 2012
We have a Cisco 6513 Switch. During some parts of the day it is having large amounts of transmit discards on a certain interface because of the amount of data we are pushing. We have determined it is a link problem and not a problem with the switch. The link cannot handle the amount of packets the switch is pushing out. I was wondering if there is a way to create a buffer or a way to regulate the maximum amount of packets that can leave that interface without losing any packets?
View 5 Replies
ADVERTISEMENT
Dec 13, 2011
After opening up Solarwinds NPM, I noticed that a few of my interfaces had lots of discards (who knows how long it's been sets the counters were reset)
interface GigabitEthernet1/0/25description Etherchannel to MamaCassswitchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiatepriority-queue outchannel-group 4 mode on
interface GigabitEthernet2/0/25description Etherchannel to MamaCassswitchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiatepriority-queue outchannel-group 4 mode on
interface Port-channel4switchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiate,It looks as if priority-queue was configured outbound on these interfaces, could this be the cause of the transmit discards which are now up to 79,835, I just reset the counters on the interfaces a little while ago.
I'm not the best in the world when it comes to QoS, we do have some VoIP phones, but they are only a specific network, and do not travel outside, since there are used mainly for VoIP training. I do know both interfaces are running the default of FIFO.
View 1 Replies
View Related
Apr 8, 2013
I am having an issue pinpointing why my 2821 router is discarding so many packets when transferring data to our second site. The traffic flows from the local lan, to the router, where it is redirected via WCCP to a WAN optimization device, back to the router and over a GRE tunnel to the second site where the same process happens. The traffic does get there, but the LAN/Repeater router interfaces have around 20,000-60,000 input drops an hour. From the output below, it looks like traffic is being dropped by the RP.
I just restarted the router as a last resort, and here is what has accumulated in the last 30 min:
FastEthernet0/0/1 is up, line protocol is up
Hardware is Fast Ethernet, address is 0025.840c.7680 (bia 0025.840c.7680)
[code]....
And CPU never goes above 40%
100
90
80
70
[code]...
View 17 Replies
View Related
Apr 15, 2013
I have an AP1242 near a couple of conference rooms. I get complaints when we have a large contingent in there and some try to download documents. The bandwidth consumption is meage - less than 2Mbps. But there could be say 50 people in those training rooms. I see no errors at the FE interface on the AP but I do see a good number of Transmit Discards.
Are 50 users connected to an AP1242 simply more than should be expected of the device? 802.11g is the radio.
Are transmit discards indicative of some kind of configuration problem? The users in these cases are generally very close to the access point - within a few feet even.
If it is indicative of a configuration problem would that be an issue of the configuration of the laptop wifi cards or a problem at the AP?
View 2 Replies
View Related
Sep 13, 2011
I have a AIR-AP1121G-A-K9 running c1100-k9w7-tar.123-7.JA2 (Autonomous)We have monitoring setup with Orion NPM and we consistently see output errors, Transmit discards and big buffer errors The users at the site have not reporting any issues but was wondering how to prevent these or are these normal?What causes the output errors on Wireless Radio ? How to troubleshoot further ?
Radio0-802.11G
Total Output Errors 0 47749
Small Buffer Misses
4 misses
139 misses
[code]....
View 1 Replies
View Related
Apr 22, 2013
I have a query regarding the deletion and creation of one of my SVI interface on 6513 ,The reason behind it as follows.My traffic get to Internet in this manner
proxy(external int.)[IP:192.168.1.30] --> Gi0/9[6513 in VLAN 170] --> SVI VLAN 170[IP:192.168.1.10] --> Gi0/10[In VLAN 170] -->ASR[IP:192.168.1.20],I need to assign this VLAN ie 170 to my inside interface of firewall but it was mentioned in books like this "Assign the VLAN for the FWSM before it is applied to the MultilayerSwitch Feature Card (MSFC)." so I am thinking the following steps to assign VLAN 170 to firewall group first before creating SVI Interface for it
1.Remove all currently assign ie Gi 0/9 & Gi0/10 interfaces from this VLAN and then delete this VLAN.
2.Create the same SVI ie VLAN 170[IP:192.168.1.10] by this way the issue can be resolved.
As in part of my configuration PBR is define like this .
interface Vlan170
description "PUBLIC IP VLAN"
ip address 192.168.1.20. 255.255.255.0
ip policy route-map NAT
route-map NAT permit 10
match ip address 101
set ip next-hop 192.168.1.10
I need to clearify what impact it may have on PBR part if I delete and create the VLAN 170.Will the traffic move to the inside interface of FWSM.
View 0 Replies
View Related
Nov 12, 2012
I have created 5 new 2 Gig port channels on a 6513 WS-X6516A-GBIC blade connecting to 5 4510R+E switches. 3 of the 5 Port-channels show up/up. 2 show down/down. However, for the 2 showing down, a duplicate Po interface was created with an "A" appended to the name that shows up/up. E.g:
Port-channel26 unassigned YES unset down down
Port-channel26A unassigned YES unset up up
Each of the 4510s has a second 2Gig PO to another 6513 with an identical config and all of those come up fine.
View 2 Replies
View Related
Oct 29, 2012
we have a chassis 6513-E and a module WS-X6748-GE-TX, I'd like to know if could I put this module in any slot, since the documentation from Cisco says that any slot from a chassis 6500-E Series can support this module. And then in the documentation of WS-X6748-GE-TX says that this module is not compatible in the slots 1-8 of the 6513 chassis, only from 9th to 13th slots, in those slots from the 6513-E we already have 4x WS-X6748-GE-TX, and we'd like to know if could we put the module in the rest of the slots. The 6513, and 6513-E is kind of confusing.
View 4 Replies
View Related
Dec 11, 2011
We have a failover pair of load balancers (non-Cisco) which are connected to each other via Catalyst 6509Es with Sup720 supervisor cards. Failover is achieved by the newly active load balancer GARPing all its service IP addresses with the relevant MAC address in order to update nearby ARP tables (failover GARPs are fired out by the load balancers at a rate of 200 per second). Failing over services between these load balancers has been found to be problematic, with numerous services not failing over in a timely manner.
Some of the load balanced networks involved are routed on the Sup720s, the rest are routed on FWSM modules in the same chassis. Problems occur only with VLANs routed on the Sup720s; all VLANs routed on the FWSMs fail over without issue.
Investigation has shown that this is due to a proportion of the ARP table entries not being updated in the Sup720 and (with the default 4 hour ARP table timeout) subsequently requiring a manual flush of the "wrong" ARP entries.
Testing by throwing GARPs at both the FWSM and the Sup720 has revealed the following:
we can quite happily throw ~200 GARPs per second at the FWSM and all the relevant ARP table entries are updated with the correct MAC address. This fits with the sucessful failovers for any FWSM routed networks. however, repeating the same test with a VLAN routed on the Sup720 results in GARPs being dropped by the Sup720. The Sup720 keeps discarding a proportion of GARPs until we drop the rate of GARP to <~75 per second. We're not rate-limiting ARP anywhere in the Sup720 - hardware or otherwise - and the FWSM handles the rate of GARP without issue. Is there any built-in restriction on the Sup720 we're not aware of that would cause the observed behaviour, is it configurable.
View 1 Replies
View Related
Dec 10, 2012
I have one specific trouble with Catalyst 3560CG switch and Stardom reserved industrial controller. Controller has 2 processors, one of them after(!) negotiation become main with IP 192.168.1.1, other one stays in reserve with IP 192.168.1.129. If main one shuts down, spare one becomes main with IP 192.168.1.1. This perfectly works with DLINK and MOXA level 2 switches, but fails with Catalyst 3560, because spare one cannot even connect to switch port. I don't know the exact reason of it, but i suspect, that it happens because of before negotiation both controllers have ip 192.168.1.1 (i know, that it is wrong and weird, but so it goes). First of them correctly connects to switch port, which goes up and passes pings. Second processor tries to connect to switch port, which goes several times up and very soon down, then processor lefts his tries to connect to anybody and become idle. The switch seems to some way check IPs of 1-st and 2-nd port packets, and shuts down 2-nd port. I have connected via hyperterminal and tried to disable some level 3 functions and checks of the switch, but this wasn't useful. how exactly(or at least approximately) should i configure a switch to make this bundle work?
View 1 Replies
View Related
Dec 18, 2011
I have an issue where I'm seeing output discards on pretty much all my ports configured for QoS. The switches are cisco WS-C3750V2-48PS running 12.2(50)SE1. There are four switches stacked using stack cables. The QoS implemeted was auto-qos with no modifications to the standard config. All ports are in queue-set 1. The phones connected are Cisco 7942's. Already did the standard check for speed duplex mismatch, crc's, runts, giants, etc...No discards before the QoS was applied. No bug ID's I could find regarding these switches and this IOS version. The one thing noticed is that 99% of all the drops are from queue's 2 and 4 or 1 and 3 doing the below command.
**I've limited the cut and paste as to not clutter the discussion until someone requests something else**
show platform port-asic stats drop
Port 18 TxQueue Drop Statistics
Queue 0
Weight 0 Frames 0
Weight 1 Frames 0
[Code]....
View 5 Replies
View Related
Oct 17, 2012
I have been experiencing discards and no buffers errors on my 2950 switches. These switches are connected to two core switches 4948 and 3560G. I have noticed previous posts regrading these problems but have been unable to find any cases that were resolved. We are using 12.1(22)EA11 software on our 2950 switches.
Outputs:
flrnet3#SH controllers ethernet-controller gigabitEthernet 0/2
Transmit Receive 22204993 Bytes 904542488 Bytes
[Code]....
View 3 Replies
View Related
Apr 9, 2013
Cisco 4500-X do not support egress queing on VLAN interfaces (SVI) which means cannot do a traffic-shapping, is there a work around via policing? I can police the traffic and then on the trunk interfaces do "per-port-per-VLAN" QoS but again only the policing not shapping so I was wondering what is the effect of "exceed-action transmit" command
policy-map SHAPE
class class-default
shape-average 8000000
Versus...
policy-map POLICE
class class-default
police 8000000 4000 conform-action transmit exceed-action transmit
View 10 Replies
View Related
Jun 2, 2013
I am using 10Gig link to connect distribution and access switches. Since we are terminating the cables at multiple locations, we are also doing the link budgeting. The CISCO SFP 10G-LR module data sheet shows two values for the transmit power one of which is maximum power .5dBm and another is minimum power -8.2 dBm. Which value should I choose for the link budgeting.
View 1 Replies
View Related
Jan 31, 2012
Well I have been back and forth on this a while now...I have a 6513E chassis that is getting prepped for prod. I am currently testing sso functionality and I can only get it to work using the following images on both Sup Cards.
s72033-adventerprise_wan-mz.122-33.SXI5.bin
If I try any other image, smaller or bigger in size...it forces my Sup card in mod 8 to recycle " proxy request from peer ". I have tried K9 images and non K9 images. Here is an output from sh redundancy.
Redundant System Information : Available system up time = 4 minutes Switch overs system experienced = 0 Standby failures = 0 Last switchover reason = none [code]...
View 2 Replies
View Related
Jul 31, 2012
I have a new 6513 with 2 sup32's with IOS. This chassis will replace a working 6513 with 2 sup2's with CatOS.I need to pull the running config from the CatOS chassis and make it work on the IOS chassis. i can do this manually but was wondering if there are any trade secrets on doing this.
View 3 Replies
View Related
Nov 21, 2011
I am replacing a faulty sup720 on a 6513. It s the backup/hot not the active sup. It has the same IOS on it. Is it correct that all I need to do is remove the faulty and replace it with the new sup and do a wr mem? Fromwat I have read their should be no down time all connectivity should remain stable?
View 6 Replies
View Related
Aug 9, 2012
I have a 6513 with redundant sup 720-3B's that I cannot get onto. In short, one of the power supplies failed, it still passes traffic but I can't console or ssh to the box. Other than the two sup 720's, I have a 4 port 10gig card, a 16 port GBIC Card and an IDS module. I have tried removing the 10Gig, IDS and one of the sup's but still don't get anything on the console. I have rebooted the entire chassis and don't get anything on my console while booting. I have tried changing the speed of my terminal to every setting available incase someone has changed it at some stage but to no avail. I have tried swapping sup's, using only one at a time in the chassis but not getting anything. Is there anything else I can try to get onto this chassis? The power supply is a 3000w with a 32amp input. The failed power supply had tripped a switch, when i brought it back up, the power supply came out but the output failed LED is on. My #questions are, is there anything else I can do to try get onto the console, and is the power supply goosed when the RED LED is lit? I have reseated the power supply also but the same result.
View 2 Replies
View Related
Apr 18, 2013
Are there any EOL notices out for the Catalyst 6513, 6509 etc E chassis? I cant find anything on the internet for the E variant, so assume this hasn't had a notice published yet.
View 2 Replies
View Related
Mar 10, 2013
My question is regarding VSS configuration on Cisco 6513 switches. My understanding is that the hardware and software configuration on the devices must be exactly the same for the VSS to function correctly. Do the Bootstrap versions also have to be identical?
The production switch is running Bootstrap Version 12.2(17r)SX5, while the new switch is running Bootstrap Version 12.2(17r)SX7.
View 3 Replies
View Related
May 16, 2012
I was working on adding a Cisco 6513 to TACACS but ran into trouble. While I work on the issue offline (recreate and test another switch), I wanted to place this switch on radius temporarily.
For some reason i cant undo/delete the AAA commands in order to point to my radius server. Below was done via console: [code]
I disabled my telemetry port on the Cisco 6513 as a precaution. The IOS im using is "s72033-advipservicesk9_wan-mz.122-33.SXI5.bin".how to remove the AAA authentication statement. Hope its not intrusive cause i have a customer on the box.
View 8 Replies
View Related
Aug 24, 2012
i have a cisco Netowtk Analysis module installed on a 6513 core switch which is NAM-1, the version on the NAM is 5.1 and we need to upgrade to the latest version which is 5.1(2)
View 1 Replies
View Related
Jul 12, 2012
I have a need to capture some traffic but my core 6513's are already using the limit of 2 span sessions. I can't edit any of the sessions either because I want to source traffic from vlans and you can only do one or the other. Is using a VACL with 'switchport capture' on the destination interface an option ? E.g. I want to source traffic from vlan 10,20,30,40 and send the all to interface Gi10/10 ? Is there any caveats ? I dont need to be too granular with the ACL's but just capture all traffic in those vlans.
View 2 Replies
View Related
Apr 28, 2012
We have Communication Media Module (WS-SVC-CMM) mounted on 6513 switch. It went down twice and we brought it up by applying "power enable module".
View 4 Replies
View Related
Mar 20, 2013
Need your expert input in sorting out the below problem.I have a cisco 6513 switch which is going into SP mode after a reboot whci i have done during BCP activity in my organization.Below are the log for your reference.
Code...
View 1 Replies
View Related
May 9, 2012
i have a Cisco 6513 it is used one, i have tryed to boot it but it did not work, it alwayes go to rommon mode and i am not able to know what is the issue,
when it boot i get the below outpot from the switch.
System Bootstrap, Version 8.1(3)
Copyright (c) 1994-2004 by cisco Systems, Inc.
Testing lower main memory - data equals address
[Code].....
View 3 Replies
View Related
Jun 4, 2012
I am getting conflicting info about this, and need to get confirmations.Is the older 6513 (non E) model compatible with WS-X6407-10GE blade?The switch we're getting this for have WS-SUP720-3B, 6000W power supply, and WS-C6K-13SLT-FAN2.From what I read they are compatible if entered in slot 9-13, but I also heard that 10GE modules are not compatible with the non E chassis.
View 1 Replies
View Related
Feb 24, 2012
We have 2 6513's that are linked via 2 10 gig interfaces, using an LACP channel.I received an alert this aft stating that the far 6513 was unreachable and the port channel int PO3 had gone down, the 2 10 gig interfaces had also gone down on either side. 5 mins later PO3 had resestablished itself and has been fine since. [code]
View 4 Replies
View Related
Jul 11, 2011
We have a pair of 6513s and upgraded the IOS version to 12.2(33)SXI4a. After the upgrade we noticed VTP Pruning was disabled: [code] Is there any effect to production we need to to consider when re-enabling? (In other words, do we need to wait until a maintenance window to enable?)Also, we are using VTP v2 (and v1...) on our VTP Client 3560 access switches.
View 2 Replies
View Related
May 8, 2013
I have just buy a 10G card for Cat 6513, these are information: PDCMSFC-1>sh module
Mod Ports Card Type Model Serial No.
--- ----- -------------------------------------- ------------------ -----------
2 16 SFM-capable 16 port 1000mb GBIC WS-X6516A-GBIC SAL08373Z37
7 2 Supervisor Engine 720 (Active) WS-SUP720-BASE SAD08330322
Mod Sub-Module Model Serial Hw Status
--- --------------------------- ------------------ ------------ ------- -------
7 Policy Feature Card 3 WS-F6K-PFC3A SAD083207AL 2.4 Ok
7 MSFC3 Daughterboard WS-SUP720 SAD0832037Y 2.3 Ok
About card: WS-X6716-10G-3C
When I install this card on Cat 6513, has a message: " fan tray no support"
View 5 Replies
View Related
Aug 1, 2007
I am running a network comprising of Catalyst 6513's with SUP7203B's. at present we have 800 VLAN's as we make use of a VLAN per access layer switch model.
I know have a problem that as soon as I enable multicast routing my SUP720's CPU runs at 100% and the system goes into a slowdown.where I can find information on the scalability of Multicast?
View 15 Replies
View Related
Mar 29, 2012
We have a 6513 with about 8 switches in it. I installed a Intel Pro PT NIC in a Dell PE2850 and setup the Team setting which created a bridge in the network connections.
10 minutes later, every server connected on that 'blade' went down and rebooted.
This happened once before to another tech here (I didn't know at the time it would do this but after he saw it he pointed it out)
View 2 Replies
View Related
Jan 9, 2012
We currently run 1 Cisco 6509 (CatOS) for our production network. It has multiple vlans which feed distribution switches on each floor in 2 buildings. Essentially each floor is its own vlan. Each floor switch is connected back to the 6509 via fiber connections. We also have several production vlans that our VMware and AIX environments connect to.
I would like to phase out the the 6509 and replace it with a new 6513 chassis, sup720's etc. Currently it is sitting next to the 6509 in the rack. I need to limit downtime as much as possible but can get one shutdown window over a weekend. However I dont think it would be enough time to move all of the existing etherconnections etc etc
So I am looking to run them both at the same time and slowly migrate over to the 6513 over the next few months.My solution was to use the 6513 (IOS) in L2 mode only for now and trunk it back to the 6509 via 4 1 gig connections in a LACP config.
So the 6509 would still be handling all of the L3 routing for now.Once I had moved all of the fiber and ethernet connections over to the 6513, I would use the shutdown weekend to configure the 6513 for L3 and essentially turn off the 6509 at that point.
My questions are
- Is there a better way to do this ?
- By trunking the 6513 to the 6509 do I need to worry about any loop issues ?
- I am aware of the oversubscription issue for the port channel and have spread the 4 interfaces over the different groups of asics.
View 6 Replies
View Related
