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

[Volodymyr Litovka]

Erik,

I was trying single "community set" statement like

community set "3254:65535 3254:9100 3254:9111"

with the same result. Since I want to remove all incoming communities, I 
use "set" to rewrite entire information.

Actually, this works - because you've seen that particular network 
prefix has specific communities. The question is why some of them can't 
be used with "show bgp route comm" command.

On 7/18/2011 1:49 PM, Erik Bais wrote:
>
> Hi Doka,
>
> Is there a specific reason why you are using the following syntax for 
> the BGP policy to add the communities ?
>
>         community set "3254:65535 3254:9100";
>         community add "3524:9111";
>
> I’m using the following in my policies :
>
> entry entry-5 {
>
>         If {
>
>         nlri 123.123.128.0/21 exact ;
>
>         }
>
>         then {
>
>                 med set 0;
>
>                 local-preference 250;
>
>                 community add "51088:6543" ;
>
>                 community add "51088:65001" ;
>
>                 permit ;
>
>              }
>
> }
>
> And that works on 12.4.2 , 12.4.3, 12.5.4.  (and is currently broken 
> in the 12.6.x beta but expected to be fixed before the 12.6 GA version.)
>
> I’m also running X480’s .
>
> Regards,
>
> Erik Bais
>
> *From:*extreme-nsp-bounces at puck.nether.net 
> [mailto:extreme-nsp-bounces at puck.nether.net] *On Behalf Of *Volodymyr 
> Litovka
> *Sent:* Monday, July 18, 2011 12:35 PM
> *To:* extreme-nsp at puck.nether.net
> *Cc:* yokodzun at yokodzun.kiev.ua
> *Subject:* [e-nsp] ExOS: "sh bgp routes community" bug?
>
> 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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-- 

/doka

Vision without Execution is Hallucination. -- Thomas Edison.

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