Re: [j-nsp] BGP strange Next hop behavior (in JNCIP)

2011-03-17 Thread medrees
@puck.nether.net Subject: Re: [j-nsp] BGP strange Next hop behavior (in JNCIP) Hello, If you follow the topology and the tasks from the book you should not have such issue. To help you we will need more information. You are saying that the agg received from R5 is causing the IBGP session on R3 to flap or

Re: [j-nsp] BGP strange Next hop behavior (in JNCIP)

2011-03-16 Thread Ivan Ivanov
it used it as prefer which leaded to keep the sessions flap > many > time. > > > From: Ivan Ivanov [mailto:ivanov.i...@gmail.com] > Sent: Wednesday, March 16, 2011 11:18 AM > To: medrees > Cc: juniper-nsp@puck.nether.net > Subject: Re: [j-nsp] BGP strange Next hop behavior (in

Re: [j-nsp] BGP strange Next hop behavior (in JNCIP)

2011-03-16 Thread medrees
Cc: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] BGP strange Next hop behavior (in JNCIP) Hi, You probably have the lo0.0 of R5 in level-2. So the IBGP session is using the attached default route on R6 from R5 to reach the IBGP peer. When R6 gets the aggregate it contains the lo0.0 also. And the router is

Re: [j-nsp] BGP strange Next hop behavior (in JNCIP)

2011-03-16 Thread Ivan Ivanov
Hi, You probably have the lo0.0 of R5 in level-2. So the IBGP session is using the attached default route on R6 from R5 to reach the IBGP peer. When R6 gets the aggregate it contains the lo0.0 also. And the router is falling in the situation where it has to use this agg for keeping the IBGP sessio

[j-nsp] BGP strange Next hop behavior (in JNCIP)

2011-03-15 Thread medrees
Hi Expertise I’m wondering from strange behavior for two IBGP session included in JNCIP_StudyGuide, I have one router make aggregation for the whole network 10/8(R5 in case study of EBGP) and where the routers inside the other ISIS are level-1 routers (R1 & R6) so they reach the Level1-2 rout