From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Jun 22 2004 - 07:12:39 GMT-3
No, I don't recall seeing those messages, although maybe that would have
helped. According to Brain Dennis, you're right about the Virtual-Access
going up and down. Do you know why those messages weren't displayed?
BTW, I was telnetted into an access terminal from which I reversed telnetted
into each router's console port.
Thanks, Tim
----- Original Message -----
From: Tom Rogers
To: ccie2be ; Group Study
Sent: Tuesday, June 22, 2004 12:11 AM
Subject: Re: BGP flapping
I guess ure seeing this also :-)
5d22h: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1,
changed state to down
5d22h: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1,
changed state to up
Tom
ccie2be <ccie2be@nyc.rr.com> wrote:
Hi Guys,
This has been bothering me most of today. I just can't figure it out.
I'm doing a practice lab and R6 has 2 pppoATm connections to BB1. The
configs
are shown below.
Aside from BGP, there aren't any other routing protocols running between
R6
and BB1.
I tried using ( and not using) nei... ebgp multihop and the same for nei
...
update-source lo0.
Nothing seems to make any difference. The BGP session just keeps flapping
up
and down.
Anyone know what's going on here? If so, please tell me what I should do
to
correct this annoying problem.
Thanks kindly, Tim
interface ATM1/0
no ip address
no atm ilmi-keepalive
pvc 0/16 ilmi
!
!
interface ATM1/0.206 point-to-point
pvc 0/206
--More--
11:50:11: %BGP-5-ADJCHANGE: neighbor 54.6.8.254 Down Peer closed the
session
broadcast
encapsulation aal5snap
protocol ppp Virtual-Template1
!
!
interface ATM1/0.306 point-to-point
pvc 0/306
encapsulation aal5snap
protocol ppp dialer
dialer pool-member 1
!
router bgp 100
no synchronization
bgp log-neighbor-changes
network 142.6.40.0 mask 255.255.248.0
neighbor 54.6.7.254 remote-as 54
neighbor 54.6.7.254 ebgp-multihop 255
neighbor 54.6.7.254 update-source Loopback0
neighbor 54.6.8.254 remote-as 54
neighbor 142.6.46.4 remote-as 45
neighbor 204.12.6.3 remote-as 200
neighbor 204.12.6.254 remote-as 54
no auto-summary
--More--
11:51:34: %BGP-5-ADJCHANGE: neighbor 54.6.7.254 Up
--More--
11:51:46: %BGP-5-ADJCHANGE: neighbor 54.6.8.254 Up
--More--
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