[j-nsp] BGP troubleshooting

Goldschmidt, Bernd bernd.goldschmidt at siemens.com
Tue May 16 15:34:34 EDT 2006


Hi David,

sorry, I forgot to mention that you need this the " soft-reconf in" (in my configs it is the default)
Also remember the "no rib-out disable" in the router bgp config (this is also default in my configs) to get an output when you use the "advertised-routes" keyword.


what's magic?

received           Display information received from this neighbor
received-routes    Display routes received from this  neighbor (before inbound policy)

So with "received-routes" you will see all routes which the bgp peer is sending to you.
So "received-routes" - "received" = "dropped"

Gruß
Bernd.


 



 

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> Guillet, David (David)
> Sent: Tuesday, May 16, 2006 8:39 PM
> To: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] BGP troubleshooting
> 
> Hi Yes Bernd I using gE series I forgot to mention that sorry.
> 
> I used the command you said but I get no output and I get no 
> output since
> the soft reconfiguration was not enable.
> 
> I also get advices from Nitin Vig and Anand Dhingra Wich I 
> would like to
> thank here I finally get the solution: 
> 
> router bgp as-number
> neighbor x.x.x.x soft-reconfiguration inbound
> 
> sh ip bgp neighbors x.x.x.X received-routes
> 
> Supressed routes appears magicaly ;o)
> 
> Regards 
> 
> David
> 
> > -----Original Message-----
> > From: Goldschmidt, Bernd [mailto:bernd.goldschmidt at siemens.com]
> > Sent: mardi 16 mai 2006 17:17
> > To: Guillet, David (David); juniper-nsp at puck.nether.net
> > Subject: RE: [j-nsp] BGP troubleshooting
> > 
> > 
> > Hi David,
> > 
> > if you talk about route-map, I guess you are working with 
> > Juniper E-Series, or?
> > 
> > what about this:
> > ----------------
> > burkhard#sh ip bgp neighbors 192.168.1.1 ?
> >   &>                 Display and redirect the output to a 
> > file, replacing
> >                      previous contents
> >   &>>                Display and redirect the output to a 
> > file, appending to
> >                      previous contents
> >   >                  Redirect the output to a file, replacing 
> > previous contents
> >   >>                 Redirect the output to a file, appending 
> > to previous
> >                      contents
> >   advertised-routes  Display routes advertised to a BGP neighbor
> >   dampened-routes    Display routes suppressed by route-flap 
> > dampening received
> >                      from this neighbor
> >   delta              Display statistics relative to the 
> > current baseline
> >   paths              Show path information
> >   received           Display information received from this neighbor
> >   received-routes    Display routes received from this 
> > neighbor (before inbound
> >                      policy)
> >   routes             Display routes accepted from this 
> > neighbor (after inbound
> >                      policy)
> >   |                  Filter output using the CLI Filtering feature
> >   <cr>
> > 
> > - advertised-routes
> > - received-routes
> > - routes             
> > 
> > Gruß
> > Bernd.
> > 
> > 
> > > -----Original Message-----
> > > From: juniper-nsp-bounces at puck.nether.net 
> > > [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> > > Guillet, David (David)
> > > Sent: Tuesday, May 16, 2006 4:49 PM
> > > To: juniper-nsp at puck.nether.net
> > > Subject: [j-nsp] BGP troubleshooting
> > > 
> > > Hi,
> > > 	Is there a way to see the discarded BGP routes after 
> > > the execution
> > > of a route-map ? 
> > > 
> > > 	I'm trying to see if a route-map filtering specific 
> > > communities is
> > > well executed in the right order.
> > > 
> > > 	I tried to execute the "show ip bgp fields"  with the following
> > > fields communities, peer. I also tried with "show ip bgp 
> > > community" but I
> > > can't see the discarded routes.
> > > 
> > > 	When doing a "show ip route" I can see the routes I 
> > > allow with my
> > > route-map but I would also like to see the routes that are 
> > discarded. 
> > > 
> > > Regards
> > > 
> > > David
> > > _______________________________________________
> > > juniper-nsp mailing list juniper-nsp at puck.nether.net
> > > http://puck.nether.net/mailman/listinfo/juniper-nsp
> > > 
> > 
> 
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