ISSU upgrade from 6.2( 2) to 6.2(6 ) - % URIB -3- ADD_PATH_ERROR

[jgeralsky]

Hello,

After an ISSU upgrade from 6.2 ( 2) to 6.2 (6 ) we regularly receive the following warning messages in the log :

Dec 30 09:13:57 CSR1 - krr.lrz.de : 2013 Dec 30 08:13:57 UTC: % URIB -3- ADD_RPATH : urib [ 8038 ] ( default- base) Client " MBGP - 12816 " added 199 109 . 32.0/24 via not found rnh % 129.187.0.1/32 default

Dec 30 09:13:57 CSR1 - krr.lrz.de : 2013 Dec 30 08:13:57 UTC: % URIB -3- ADD_RPATH : urib [ 8038 ] ( default- base) traceback : 0x80d5bd9 0x80db128 0x80e214b 0x808e6b6 0x8092a56 librsw . libpthread.so.0 +0 x6140 so +0 xaa14f libc.so.6 +0 xca8ce

Dec 30 09:13:57 CSR1 - krr.lrz.de : 2013 Dec 30 08:13:57 UTC: % URIB -3- ADD_PATH_ERROR : urib [ 8038 ] ( default- base) urib_process_modify_routes : could not add path for client " MBGP - 12816 " .

The prefix is always 199.109.32.0/24  or 199.109.32.0/22 . The other 4000 prefixes we don't get this message .The nexthop 129.187.0.1 is for all 4000 + prefixes .

Why we get these error messages ?

How can we fix it ?

Thank you,

Jan

[jgeralsky]

Hello,

Cisco case was opened 3 months ago and still trying to figure out the root cause.

I can provide partial update if is it necessary.

Jan

[nnils]

Hello Jan,

we opened a case last week.

We see also the same problematic bgp route 199.109.32.0/24, but we both get the routes via DFN.

Nils

[jgeralsky]

Hello Nils,

Our case number is SR#628654113. 

Cisco DEV team is working on it. They still need some new outputs.

Cisco suspecting it to be an issue with urib memory leak.

Jan

[nnils · Accepted solution]

Hello,

it seems to be fixed in 6.2.8

Nils