ASR9010 BGP Accounting on bundle-ether

[Dmitriy Vladimirov]

Hi. everyone

I'm trying to configure bgp accounting on interface bundle-ether on ASR 9010 (IOS-XR:4.2.0),

But command

sh cef ipv4 interface bundle-ether1 bgp-policy-statistics

show zero counts of bytes and packets.

I looking for answer on question: It is hardware or software restriction?

Can experts say,  bgp accounting on interface bundle-ether must work or not.

Not trying yet IOS-XR: 4.2.3. I'll updrade my working ASR to 4.2.3 if that helps to resolve issue.

Using bgp accounting for counting traffic on TenGigabitEthernet interfaces and it"s works fine.

Tnanks in advance.

[Alexei Kiritchenko]

Hello Dmitriy,

Yes, it should work. May you try using location keyword to specify the bundle member location?

show cef ipv4 interface bundle-eth1 bgp-policy-statistics location x/y/CPU0

Regards,

/A

[Dmitriy Vladimirov]

Thanks for answer. I did not exactly expressed my issue. Output non zero, but we see very small number of counted bytes and packets. Bytes in second where traffic is more than 10Gbit/s.

Output of commands with bundle member location and without are identical:

RP/0/RSP1/CPU0:cisco#sh cef ipv4 interface bundle-ether 1.800 bgp-policy-statistics location 0/1/CPU0

Thu Dec 20 14:17:44.821 ESS

Bundle-Ether1.800 is UP

Input BGP policy accounting on dst IP address enabled

  buckets      packets       bytes

  default          2          88

  1                  1          28

  3                  2          64

  4                  1          44

  5                  4         128

  6                 72        4082

  63                 1          44

Input BGP policy accounting on src IP address enabled

  buckets      packets       bytes

  default           25        2400

  63                89        4766

Output BGP policy accounting on dst IP address enabled

  buckets      packets       bytes

Output BGP policy accounting on src IP address enabled

  buckets      packets       bytes

RP/0/RSP1/CPU0:cisco#sh cef ipv4 interface bundle-ether 1.800 bgp-policy-statistics                 

Thu Dec 20 14:17:46.301 ESS

Bundle-Ether1.800 is UP

Input BGP policy accounting on dst IP address enabled

  buckets      packets       bytes

  default          2          88

  1                  1          28

  3                  2          64

  4                  1          44

  5                  4         128

  6                 72        4082

  63                 1          44

Input BGP policy accounting on src IP address enabled

  buckets      packets       bytes

  default           25        2400

  63                89        4766

Output BGP policy accounting on dst IP address enabled

  buckets      packets       bytes

Output BGP policy accounting on src IP address enabled

  buckets      packets       bytes

I noticed in log repeating message, when enabled bgp accountig on bundle-ether.

LC/0/1/CPU0:Dec 20 13:52:49.084 : ipv4_io[228]: %IP-IP_EA-3-PLATFORM_UPDATE_BULK : Platform update failed for 1 interface: FIB_FEATURE_IF_TYPE_IPV4_ALL_INTF_INFO - Not enough memory

After disabling bgp accountig on bundle-ether, message disappeared.

Not noticed this messages with enabled bgp accountig on routed TenGigabitInterface. Our processor A9K-RSP-4G  and card A9K-8T-L. What restriction in memory we achieved? It's very strange, because after enabling bgp accountig on bundle-ether and getting issue, we enabled bgp accountig  on other subinterfaces on routed TenGigabit ports and accountig works fine there.

[Alexei Kiritchenko · Accepted solution]

You description is the perfect match for CSCtr13320    41126I : IP-IP_EA-3-PLATFORM_UPDATE_BULK Not enough memory msg flood

Symptom:

Repeated "IP-IP_EA-3-PLATFORM_UPDATE_BULK Not enough memory" messages are flooded on the console, with no specific user trigger.

Condition:

The issue occurs only when BGP-PA is configured on bundle-ether interfaces and in certain scenarios,

usually seen when all the members of the doesn't span across all NP's of the LC.

In case of bundle, PM tries to allocate required BGP-PA stats for all NP’s, eventhough there is no  member on that NP, which is not correct. Hence this

error msg is displayed.

Workaround:

Remove BGP-PA config from the Bundle (or) have members of Bundle come from all NPs on the Linecard.

From what I see the bug should have been fixed since 4.2.0. Can you confirm you run 4.2.0?

You’ve mentioned you wanted to try 4.2.3, may you do so?

Regards,

/A

[Dmitriy Vladimirov]

Thanks, seems it is what we are looking for.

Running version:

RP/0/RSP1/CPU0:cisco#sh version brief

Cisco IOS XR Software, Version 4.2.0[Default]

RP/0/RSP1/CPU0:cisco#sh install active summary

  Active Packages:

    disk0:asr9k-mini-p-4.2.0

    disk0:asr9k-k9sec-p-4.2.0

    disk0:asr9k-mgbl-p-4.2.0

In details of bug we see: First Found in: 4.2(0)BASE,4.1(1)BASE

Fixed in: 4.2(0.14)I

As I guess, we can fix bug without interrupting traffic via ASR9010.

But I can't find correct pie between files in

IOS XR Software Maintenance Upgrades (SMU)-4.2.0  and in

4.2.0-Updated Tarball for ASR9K Recommended SMU's: 4.2.0_asr9k-p_REC_SMUS_2012-10-04.tar

Please, say the exact name of 4.2.0 pie, that fix bug.

It will be the best choice, that help us - don't interrupt traffic via our ASR9010.

[Alexei Kiritchenko]

Hello Dmitriy,

As I’ve mentioned the bug should have been fixed already in 4.2.0 but apparently it was not.

Open a TAC Service Request. We’ll check the fix commitment with the dev team.

Regards,

/A

[Dmitriy Vladimirov]

Thanks, Alexei. I opened TAC Service Request. I hope to get SMU.