[e-nsp] ExOS: "sh bgp routes community" bug?

Volodymyr Litovka doka at lucky.net
Mon Jul 18 06:34:48 EDT 2011


Hi,

when looking into detailed network info, it shows right communities here:

_eel.35 # sh bgp routes detail network 31.41.120.0/21_

Feasible Routes
---------------
Route: 31.41.120.0/21, Peer 213.133.164.149, BEST, Active
Origin IGP, Next-Hop 213.133.164.149, LPref 95, MED 100
Weight 1,
AS-Path: 13249 9002 8744 48485
Community: 3254:65535 3254:9100 3524:9111

but when I'm trying to get all routes with selected community, I get 
strange results.

None for 3254:9111 :

_eel.36 # show bgp routes community 3254 : 9111
_
Feasible Routes
---------------
Destination Peer Next-Hop LPref Weight MED AS-Path


Unfeasible Routes
-----------------
Destination Peer Next-Hop LPref Weight MED AS-Path

while everything is ok for 3254:9100:

_eel.60 # show bgp routes community 3254 : 9100_

Feasible Routes
---------------
     Destination        Peer            Next-Hop        LPref Weight 
MED   AS-Path
*>i 1.0.4.0/22         194.44.35.213   194.44.35.213   90    
1            3255 6939 7545 7545 7545 7545 7545 56203
   i 1.0.4.0/22         213.133.164.149 213.133.164.149 85    1      
100   13249 6939 7545 7545 7545 7545 7545 56203
*>i 1.5.0.0/16         194.44.35.213   194.44.35.213   90    
1            3255 6939 4725
   i 1.5.0.0/16         213.133.164.149 213.133.164.149 85    1      
100   13249 6939 4725
*>i 1.8.1.0/24         194.44.35.213   194.44.35.213   90    
1            3255 3549 6453 4641 38345
   i 1.8.1.0/24         213.133.164.149 213.133.164.149 85    1      
100   13249 6453 4641 38345
*>i 1.8.8.0/24         194.44.35.213   194.44.35.213   90    
1            3255 3549 6453 4641 38345
   i 1.8.8.0/24         213.133.164.149 213.133.164.149 85    1      
100   13249 6453 4641 38345

Everything rest besides "show" seems to be working.

Incoming policy map is:

entry peer-in-50 {
if match any {
         as-path "_NNNNN_" ;
         community "XXXX:YYYYY" ;
  }
then {
         local-preference 95;
         community set "3254:65535 3254:9100";
         community add "3524:9111";
         permit;
  }
}

Is it bug or feature?

Summit x480
Image   : ExtremeXOS version 12.5.1.6 v1251b6 by release-manager
           on Tue Nov 23 09:49:14 PST 2010

Thank you

-- 

/doka

Vision without Execution is Hallucination. -- Thomas Edison.

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