[Re: [nsp] bgp & ds3]

Mon Feb 17 11:09:24 EST 2003

thanks for the pointer; unfortunately, i haven't been able to find it in
bug in the toolkit.  if you, or anyone else on the list, can remember or 
find the bug id i would greatly appreciate it....

back to the bugkit........

"Wayne \(cisco nsp\)" <wg-cisco-nsp at wgustavus.com> wrote:
> Check the bug tools...I seem to recall a bug related to a flapping serial
> interface that would take down a FE interface (and you BGP w/ it)
> 
> -Wayne Gustavus
>     CCIE #7426
> 
> ----- Original Message -----
> From: "Joshua Smith" <joshua.ej.smith at usa.net>
> To: <cisco-nsp at puck.nether.net>
> Sent: Monday, February 03, 2003 11:16 AM
> Subject: [nsp] bgp & ds3
> 
> 
> > hello all
> >
> > i am encountering an odd issue - i have a 7513 with three BGP peers (one
> > IBGP, two EBGP), the two EBGP sessions are on DS3 serial interfaces, the
> > IBGP is on a fastethernet interface connected by crossover to my other
> 7513.
> > the issue is that when one of the ds3 circuits goes down, all three bgp
> > sessions drop with hold-time expired.  i am not sure if this is
'supposed'
> > to happen, or if i have some hidden issue.  i know that the one session
> > should drop, but i don't understand why the other two do.
> >
> > thanks
> >
> > joshua
> > (sorry for the anonymization, but my employer prefers it)
> >
> > #sho ver
> > Cisco Internetwork Operating System Software
> > IOS (tm) RSP Software (RSP-IK9O3SV-M), Version 12.2(13)T,  RELEASE
> SOFTWARE
> > (fc1)
> > TAC Support: http://www.cisco.com/tac
> > Copyright (c) 1986-2002 by cisco Systems, Inc.
> > Compiled Sat 16-Nov-02 00:33 by ccai
> > Image text-base: 0x60010948, data-base: 0x61D5C000
> >
> > ROM: System Bootstrap, Version 12.0(10r)S1, RELEASE SOFTWARE (fc1)
> >
> > router uptime is 7 weeks, 3 days, 18 hours, 12 minutes
> > System returned to ROM by reload at 16:37:18 EST Thu Dec 12 2002
> > System restarted at 16:39:21 EST Thu Dec 12 2002
> > System image file is "slot0:rsp-ik9o3sv-mz.122-13.T.bin"
> >
> > cisco RSP8 (R7000) processor with 262144K/8216K bytes of memory.
> > R7000 CPU at 250Mhz, Implementation 39, Rev 2.1, 256KB L2, 2048KB L3
Cache
> > Last reset from power-on
> > G.703/E1 software, Version 1.0.
> > G.703/JT2 software, Version 1.0.
> > X.25 software, Version 3.0.0.
> > Bridging software.
> > Primary Rate ISDN software, Version 1.1.
> > Chassis Interface.
> > 3 VIP4-80 RM7000 controllers (1 FastEthernet)(4 Ethernet)(2 Serial)(2
> > Channelized T3)(1 POS).
> > 4 Ethernet/IEEE 802.3 interface(s)
> > 1 FastEthernet/IEEE 802.3 interface(s)
> > 5 Serial network interface(s)
> > 1 Packet over SONET network interface(s)
> > 2 Channelized T3 port(s)
> > 2043K bytes of non-volatile configuration memory.
> >
> > 20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
> > 32768K bytes of Flash PCMCIA card at slot 1 (Sector size 128K).
> > 16384K bytes of Flash internal SIMM (Sector size 256K).
> >
> > Slave in slot 7 is running Cisco Internetwork Operating System Software
> > IOS (tm) RSP Software (RSP-DW-M), Version 12.2(13)T,  RELEASE SOFTWARE
> (fc1)
> > TAC Support: http://www.cisco.com/tac
> > Copyright (c) 1986-2002 by cisco Systems, Inc.
> > Compiled Fri 15-Nov-02 21:45 by ccai
> > Slave: Loaded from system
> > Slave: cisco RSP8 (R7000) processor with 262144K bytes of memory.
> >
> > Configuration register is 0x2102
> >
> >
> > my bgp config:
> > router bgp my-AS
> >  no synchronization
> >  bgp router-id xxx.xxx.xxx.xxx
> >  no bgp fast-external-fallover
> >  bgp cluster-id 1079970877
> >  bgp log-neighbor-changes
> >  bgp bestpath scan-time 60
> >  bgp scan-time 60
> >  network xxx.xxx.xxx.xxx mask 255.255.252.0
> >  redistribute connected
> >  redistribute static
> >  neighbor xxx.xxx.xxx.xxx remote-as my-AS
> >  neighbor xxx.xxx.xxx.xxx update-source Loopback1978602
> >  neighbor xxx.xxx.xxx.xxx version 4
> >  neighbor xxx.xxx.xxx.xxx next-hop-self
> >  neighbor xxx.xxx.xxx.xxx send-community
> >  neighbor xxx.xxx.xxx.xxx soft-reconfiguration inbound
> >  neighbor xxx.xxx.xxx.xxx prefix-list Block_Out out
> >  neighbor nnn.nnn.nnn.nnn remote-as N
> >  neighbor nnn.nnn.nnn.nnn description Direct to N
> >  neighbor nnn.nnn.nnn.nnn version 4
> >  neighbor nnn.nnn.nnn.nnn next-hop-self
> >  neighbor nnn.nnn.nnn.nnn send-community
> >  neighbor nnn.nnn.nnn.nnn remove-private-AS
> >  neighbor nnn.nnn.nnn.nnn soft-reconfiguration inbound
> >  neighbor nnn.nnn.nnn.nnn route-map FROM-N in
> >  neighbor nnn.nnn.nnn.nnn route-map TO-N out
> >  neighbor yyy.yyy.yyy.yyy remote-as Y
> >  neighbor yyy.yyy.yyy.yyy description TO Y
> >  neighbor yyy.yyy.yyy.yyy ebgp-multihop 3
> >  neighbor yyy.yyy.yyy.yyy password mypassword
> >  neighbor yyy.yyy.yyy.yyy update-source Loopback1978602
> >  neighbor yyy.yyy.yyy.yyy version 4
> >  neighbor yyy.yyy.yyy.yyy next-hop-self
> >  neighbor yyy.yyy.yyy.yyy remove-private-AS
> >  neighbor yyy.yyy.yyy.yyy soft-reconfiguration inbound
> >  neighbor yyy.yyy.yyy.yyy prefix-list 100 out
> >  neighbor nyyy.yyy.yyy.yyy route-map FROM-Y in
> >  no auto-summary
> >
> > Feb  3 03:23:17.793 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> > Serial1/0/0, changed state to down
> > Feb  3 03:25:13.814 EST: %BGP-5-ADJCHANGE: neighbor nnn.nnn.nnn.nnn Down
> > BGP Notification sent
> > Feb  3 03:25:13.814 EST: %BGP-3-NOTIFICATION: sent to neighbor
> > nnn.nnn.nnn.nnn 4/0 (hold time expired) 0 bytes
> > Feb  3 03:26:50.591 EST: %BGP-5-ADJCHANGE: neighbor yyy.yyy.yyy.yyy.yyy
> >  Down BGP Notification sent
> > Feb  3 03:26:50.591 EST: %BGP-3-NOTIFICATION: sent to neighbor
> > yyy.yyy.yyy.yyy 4/0 (hold time expired) 0 bytes
> > Feb  3 03:34:22.384 EST: %BGP-5-ADJCHANGE: neighbor xxx.xxx.xxx.xxx Down
> BGP
> > Notification sent
> > Feb  3 03:34:22.384 EST: %BGP-3-NOTIFICATION: sent to neighbor
> > xxx.xxx.xxx.xxx 4/0 (hold time expired) 0 bytes
> > Feb  3 03:41:07.444 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> > Serial1/0/0, changed state to up
> > Feb  3 03:42:29.013 EST: %BGP-5-ADJCHANGE: neighbor xxx.xxx.xxx.xxx Up
> > Feb  3 03:42:44.753 EST: %BGP-5-ADJCHANGE: neighbor yyy.yyy.yyy.yyy Up
> > Feb  3 03:55:02.105 EST: %BGP-5-ADJCHANGE: neighbor nnn.nnn.nnn.nnn Up
> >
> >
> > "Walk with me through the Universe,
> >  And along the way see how all of us are Connected.
> >  Feast the eyes of your Soul,
> >  On the Love that abounds.
> >  In all places at once, seemingly endless,
> >  Like your own existence."
> >      - Stephen Hawking -
> >
> >
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > http://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> 

"Walk with me through the Universe,
 And along the way see how all of us are Connected.
 Feast the eyes of your Soul,
 On the Love that abounds.
 In all places at once, seemingly endless,
 Like your own existence."
     - Stephen Hawking -