Cisco Switching/Routing :: WS-CBS3120X-S - Sh Platform Port Asic Stats Drops
Dec 10, 2012
In our environment we have some HP chassis, and with them there are blade switches. Lately, we've been seeing some drops on few servers connected on the blade switch ports. The switch model is WS-CBS3120X-S. And below is the tx drop for two interfaces ( where the servers are connected to).
sh platform port-asic stats drop gi1/0/11
Interface Gi1/0/11 TxQueue Drop Statistics
Queue 0
Weight 0 Frames 0
Weight 1 Frames 0
[Code]...
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Feb 21, 2012
On a 3750 you can do a show platform port-asic stats drop command. Is there a corresponding command for 6500 chassis?
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May 29, 2012
I know that an ELAM can be setup on a 6500 running ipservices 12.2(33)SXJ, however I noticed that following commands are not available on a 6500 router running advipservices 12.2(33)SXJ:show platform capture elam asic etc
So I wanted to know if there is an alternate way to setup an ELAM for troubleshooting purposes?
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Jun 12, 2012
I have a 48-port 3750G switch (model # WS-C3750G-48TS-S). How do I determine which ports are grouped per ASIC on the 3750G switch? For example, is the grouping ports 1-8 is serviced by ASIC 1, ports 9-16 is serviced by ASIC 2, ports 17-24 is serviced by ASIC 3, etc. If it exists, what is the IOS command to show the mapping of ports to ASIC?
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Jan 4, 2012
Can some clarify what is the Port-Asic mapping in WS-X6148A-GE-TX.
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Jan 1, 2012
Clarifying whats the correct # of port asic in WS-X6704-LC?According to the following link (Catalyst 6500 Architectural white paper): [URL]
"In the WS-X6704-10GE line card, there are two port ASICs each supporting 2 x 10 Gigabit Ethernet ports"
While in the document: Understanding Quality of Service on the Catalyst 6500 Switch: [URL]
Table 10.
WS-X6704
Number of 10 GE Ports 4
- QoS on 10-Gigabit Ethernet Line Cards (WS-X6704-10GE)
So whats correct? 4 port asic or 2 port asic?
# Port ASIC’s on the linecard 4
# Physical Ports per Port ASIC 1
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Dec 28, 2011
how is port-ASIC mapping in linecard WS-X6148-GE-TX?
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Jun 5, 2012
I've just noticed an error I've never seen before in our switch logs. We have a stack of 6 Cat3750G-48TS-E switches. The first two in the stack have been up for just over a year and I've only just noticed this error. Thus far, I haven't noticed any symptoms - I just stumbled upon this error while checking for something else.
As far as I can tell, this has only popped up once and it was 2 days ago. Unfortunately, due to an incorrect firewall rule, our syslogs were not getting to our syslog server so I don't have any historical logs to check against, but it hasn't happened since.
The error I've seen is as follows:-
Jun 5 17:04:03.288: * ManagementInterfaceInitialized exception in port-asic 0 (N16FujitsuSwitch.com.au-2)
Jun 5 17:04:03.288: ***********************************************************
[Code].....
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Oct 28, 2012
how I can check the qos counters and stats for interfaces on my cat 6509 ?
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May 22, 2012
What is the cause of having a huge number ( 875349) of total output drops on one of my gigabit utp port gi 2/12 which is connected to Cisco 1841 fa0/0 router by mean of cat5e cable.I did change the cable from cat5e to cat 6 and tried to increase hold queue to 4096 and to tweak wrr queue bandwidth
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Mar 5, 2013
our C3750 like the one described here [URL]
We have the port on the switch set like this:
switchport port-security maximum 25
switchport port-security
switchport port-security aging time 2
switchport port-security violation restrict
switchport port-security aging type inactivity
In case a device connected to the port is inactive for more than 2 minues ( aging time ) the first frame/packet the device generates arrives to the port on the switch, but the switch does not forward it to the appropriate port ( discards it or whatever ).
So far I tested on
1 30 WS-C3750E-24PD 15.0(2)SE2 C3750E-IPBASEK9-M
2 30 WS-C3750E-24PD 15.0(2)SE2 C3750E-IPBASEK9-M
3 52 WS-C3750G-48PS 15.0(2)SE2 C3750-IPBASEK9-M
[Code].....
When we remove port security from the port, it works perfectly fine, as expected.
It seems this is not HW or IOS version related. It seems it is not a stack synchronization issue, it does not matter if a device is connected to the first or other stack member. I tested on C3560 too, here there are no problems, so seems it is 3750 related.
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Mar 8, 2012
Is there a way to view the utilization on a WS-X6148A-RJ-45 ASIC/port group?
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Apr 24, 2013
I am trying to bridge the traffic(including different vlan traffic) from rtrA to rtrB using "bridge-group" functionality.I achived the same using a 7200 using the below configuration. [code] When I tried the same using 7600 router ping failed between rtrA and rtrB. Then from the documents it seems "bridge irb" is not supported in 7600.Is there any other way we can achieve the same fuctionality ( eg: using switchport also fine) ?
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Dec 22, 2011
I´m looking for an IOS on a 7609 SUP720/MSF3 that supports the NAT-PT feature (IPv4 to IPv6 translation). I searched on the Cisco Feature Navigator but the tool didn´t show up any IOS for the 760x platforms. I only got the feature "NAT-PT: Support for Overload (PAT)" with IOS 15.xS train.
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Feb 5, 2013
We have the following design in mind
3750 Stack (Voice gateway for phones configured on the 3750 and has a VPC nexus)
+ +
+ +
+ +
(Nexus5596) ++++++++++ (Nexus5596) (Gateway for all other vlan like PC / servers / etc)
+ +
+ +
+ +
3750x access layer (VPC to Nexus)
[CODE].....
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Aug 24, 2012
A customer wants to upgrade an IOS Base (cat4500-ipbasek9-mz.122-25.SG4.bin) of a WS-C4507R Cisco, for a IOS that have a enterprices functionalities.We install an IOS cat4500e-entservicesk9-mz.122-53.SG5.bin, but we had the following results:
config-register = 0x2102
Autobooting specified file using Variable BOOT .....
Current BOOT file is --- bootflash: cat4500e-entservicesk9-mz.122-53.SG5.bin
[Code].....
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May 6, 2012
I got the error in object when I try to add a new HSRP group in new vlan.All the HSRP group has the same HSRP group the 2.another way to provide clients's default gateway redundancy for each Vlan intead to use the HSRP?
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Mar 27, 2013
I am having problems with IGMP and QoS on CAT6500 platform with SUP720 engine.The problem is, it seems that all IGMP packets are getting marked with DSCP 48 when sent out of the switch regardless of any input service policy. I found several articles saying that PFC QoS does not apply to IGMP packets. However in IOS 15 that should be possible, but I didn't get it to work there either. [code]
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Feb 26, 2013
we observe that the process platform causes about 50% cpu load of our Nexus 7010.Could not find any information for what this process is responsible to find out the root cause of the high cpu load.
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Sep 9, 2012
Uhg. I deployed a 3560G a week ago and it was crashing... so I replaced it Sep 7 around 16:00 and now this one is crashing. Different logs.
Version 12.2(55)EX3
Sep 6 18:06:08: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 6 21:05:18: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 7 04:12:43: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 7 05:35:09: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 7 08:21:37: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 7 11:13:18: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Replacement Version 12.2(55)EX2
Sep 7 16:34:48: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 8 03:39:38: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 8 18:26:06: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 9 18:14:38: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
More detailed syslogs are in the attaced 'crash-logs.txt' file.
The device is running OSPF (it is in an NSSA). I have several other devices configured almost the same running the same IOS in my network and they are working fine.This does make the third out-of-box 3560C Cisco that has failed on me within a few days.
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Dec 7, 2010
Recently I faced 1 issue in MLS 6509.MLS had all Gig modules in slots 6,7,8 taking System detected CRC error rate on port ASIC data bus exceed fatal threshold, ("System detected CRC error rate on port ASIC data bus exceed fatal threshold".) causing the module reset by the SUP. After this active SUP causing it to failover the standby. This process was continuing every few minutes resulting in the SUPs on MLS rolling.what could be the issue for Sup rolling reset?
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Feb 6, 2012
We have 2 x C6506E and 2 x C3560-48's, they are all interconnected via port channels at 2Gb per channel. The 6506's are running CEF but the 3560's are not (The 3560's carry all our server traffic).When I do a show CEF on the 3560's it says %IPv4 CEF not running. There does not appear to be a global command to enable CEF on these switches.Is this an IOS version option or is not supported on the hardware platform?
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Dec 5, 2012
I have been working on some Catalyst 3750's running 12.2(55)SE6 and hit an issue with CEF load-balancing over multiple equal-cost paths. Anyway this issue is now solved but it introduced me to the command 'show platform forward' - this shows you how the forwarding of a packet would be done via hardware cef (as opposed to the command 'sho ip cef exact-route' command that only shows the software cef path). Anyway I tried the command on a 3560G running 15.0(2)SE and it crashes the switch. I tried it a couple of times and verified that the MAC & IP addresses were exactly right in the command and each time the switch crashes. I have extracted the relevant bits from the crashinfo and attached them.
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Jun 25, 2012
I have a couple of Switches Blade 3120, working as active-standby model (HSRP) on a new site deployment. There are other 20 sites more or less, working on the same model, without issues. But in this one, we are seeing a high cpu usage. The traffic going through the platform is 600Mbps (on peaks), and in this case we have 40% of CPU usage. Traffic should be close to 3 Gbps. When we tried to send the whole traffic through the platform, active switch began to drop packets on the majority of interfaces.
When we analyze the CPU usage, there is a special process called "HL3U bkgrd proce" always have the most CPU use, but we do not know what concerns. We do not know if it is caused because there are PBRs configured. It should not matter. How I mentioned, there are other sites working fine and have had always the same PBR number.
What is causing the high usage?. Is there a special debug we could to perform to diagnose the issue?. Also, we have seen a high interrupt CPU usage (9% in this case).
bog-sib-INT-rtr-1#show processes cpu sorted 5sec
CPU utilization for five seconds: 30%/9%; one minute: 25%; five minutes: 23%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
[Code].....
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Jun 17, 2012
What does RP drops entail? We are experiencing 0.23 % drops on an vlan int on one of our 6500. This interface is an L3 to a server-subnet. Doing a sh int vlan 238 switching shows 30935411 RP (Route Processing) drops.It was a bit unclear to me in the thread "Input queue drops on 6500 vlan interface" if RP drops was through the router, or to the router(mgmnt)?I can do a netdr to see what traffic goes to it. It should not generate CPU load, but I think I will wait until after hours before I try that command.
- do NETDR:
-- debug netdr cap rx vlan 238
-- show netdr cap
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Aug 2, 2010
I have quite a few 2960's in a manufacturing environment that are experiencing a large number of Total Output Drops. The gigabit uplinks arn't even close to fully subscribed and if I'm lucky they run at a peak of 4 - 5 Mb on a 1Gb uplink. Something really funky is going on. The individual switchports seem to have the total output drops and the uplinks at 1Gb do not have any output drops and never peak above 20Mb over a 3 month span on a 1Gb link.
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Feb 6, 2012
I'm troubleshooting interface drops. However the output of the following show commands don't match number of drops. Based on the output, can you find out what is causing the drops? the G1/0/28 is the uplink. Is that just the port got overrun by the traffic?
#show int g1/0/28
GigabitEthernet1/0/28 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0019.5667.191c (bia 0019.5667.191c)
[Code].....
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Apr 30, 2013
We currently have a site with a very simple topology that uses a 3750X switch stack for a collapsed core. Everyday, the users have a conference call and experience poor voice quality.Its not bad when users call from several conference phones, but when everyone calls in on individual phones, there is choppy and almost inaudible voice quality experienced. The voice traffic flow would be as follows: Phone <-> 3750 switch <-> Voice GW We have packet captures showing that RTP packet loss is occuring from the phone to the voice gateway, but none from the voice gateway to the phones. We also have drops in the output queues that match drops on the asics. I can reset the counters and they will be clear until the call, and then they increment significantly during the call. The voice gateway and phones are non-Cisco. The switch stack has 6 switches. We are trusting the DSCP settings on the phones. All the queue drops from the phones are usually in queues 0-3, but all drops on the voice gateway is in queue 0. Below are the QoS settings; they are mostly default and we have not changed any queuing, thresholds, or buffers. Should we specify larger buffers and threshold for a designated queue and send EF traffic to that queue?
MySwitch#sh mls qos
QoS is enabled
QoS ip packet dscp rewrite is disabled
Typical Port
GigabitEthernet1/0/4
trust state: trust dscp
[code].....
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Oct 8, 2012
We are seeing some high output drops on our 3560G's and I'm wondering if there is anything I can do to solve this, or should I just be looking at an upgrade.I do not have qos enabled:
do-rs-ah-3560g#show mls qos
QoS is disabled
QoS ip packet dscp rewrite is enabled
I don't have anything special configured apart from some trunk ports, otherwise its mostly defaults.Should I enable qos and tweak the buffering?
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Jun 17, 2012
A 2960G switch is doing IGMP snooping and is configured as the querier. There is no multicast routing.
Port 1 - Video Set Top Box A
Port 2 - Video Set Top Box B
Port 3 - Multicast Source
Both Set Top Boxes A & B are set to receive the video delivered in the same multicast group.Every 60 seconds the switch generates an IGMP General Query message which is sent out all the ports in the VLAN.There is a 10 second timeout in the Query message. Devices that wish to join (or remain joined) to the multicast group have this amount of time to respond with a Join Message directed at the multicast group. Devices deliberately wait a random duration within the timeout time before replying.
For some reason (which I don't understand), if the switch receives a Join request message from a Set Top Box, it forwards that messages out of the port to the other Set Top Box. So, let's say Box A responded with the Join Message first. Box B now sees the Join message and now thinks there is another multicast receiver on its branch of the network, so it suppresses its Join Message to avoid sending an unnecessary message.If by chance Box A responds first 2 or 3 times in a row, the switch will not have seen a response from port 2 for awhile, so it prunes that port from the multicast. Eventually, Box B responds first and gets re-joined onto the multicast. It is now Box A that may get pruned if it is consecutively slower.
How do I prevent the switch from replicating the Join message out to the other Set Top Box? I have verified this behavior with Wireshark. But, I believe the Join message is only supposed to be forwarded to a multicast router (if there is one - and there isn't), not to other ports.The 2960 is running 12.2(58) SE2.
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Feb 21, 2012
I have a 3560X that is directly connected to an ASA 5505. I am seeing output drops on the 3560X interface that connects to the ASA. Below are the troubleshooting commands I have ran, but I don't see any indication to what is causing the problem.
3560X
show run int gig 0/24
!
interface GigabitEthernet0/24
[Code]....
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Nov 23, 2012
Have got 2 6500 in VSS. I'm seeing unsual high output drops. IOS Version: advipservicesk9-mz.151-1.SY.bin
Seeing too much output drops on interface ( in millions). When checked buffers ( output pasted below), it also shows enourmous drops.Not too sure, but is this normal or is there something fishy; which needs to be investigated. [code]
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Mar 13, 2012
I have too much output drops in my cisco 7206 VxR NPE G1 router. I'm doing dot1Q on this interface and is connected to switch , i changed the router and IOS but still the error is same . What can be the reason . The interface on switch and router are 1000/Full and i changed the cable also . The traffic only comes about max70Mbps and it is really confusing. [code]
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