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RE: BGP Peer instability [9:3097] posted 05/29/2004
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Please open a case with JTAC by sending an email to support@xxxxxxxxxxxx

The Hold timer is expiring for some reason.

Thanks,
pete

-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Anil_Chawla@xxxxxxx
Sent: Saturday, May 29, 2004 12:40 AM
To: juniper@xxxxxxxxxxxxxx
Subject: BGP Peer instability [9:3097]

Dear JTAC Engineer / Apara-Juniper Support Engineer,

We have installations of M20 router @ Reliance Internet Data Center
-Bangalore (INDIA). We have BGP peer with VSNL-Bangalore (CISCO 76xx
router). Since last couple of months, we experience intermittent
instances
of BGP peer turning to Openconfirm state on both M20 as well as Cisco
76xx
router simultaneously, resulting in the down state of BGP peer. When we
restart the routing daemon on M20 side, the peer comes up and both the
peering routers turn into established state.  Below please find the
bgplog
in red colour when the state was  openconfirm & further blue color logs
correspond to up & established state after the restart of routing
daemon.

We are running JUNOS 5.5r1.2.We could not find any standard release note
w.r.t this occurence. Kindly help us in resolution of such failures.

Thanks and Regards,

Anil Chawla
Reliance Internet Data Center- Bangalore
Mobile +91-80-36767176

############# BGP PEER in OPENCONFIRM STATE ############

May 28 17:03:16 BGP SEND 202.138.103.225+179 -> 203.197.162.253+52833
May 28 17:03:16 BGP SEND message type 3 (Notification) length 21
May 28 17:03:16 BGP SEND Notification code 4 (Hold Timer Expired Error)
subcode 0 (unused)
May 28 17:04:06
May 28 17:04:06 BGP RECV 203.197.162.253+52834 -> 202.138.103.225+179
May 28 17:04:06 BGP RECV message type 1 (Open) length 45
May 28 17:04:06 BGP RECV version 4 as 4755 holdtime 180 id
203.197.162.253
parmlen 16
May 28 17:04:06 BGP RECV MP capability AFI=1, SAFI=1
May 28 17:04:06 BGP RECV Refresh capability, code=128
May 28 17:04:06 BGP RECV Refresh capability, code=2
May 28 17:04:06 bgp_pp_recv: dropping 203.197.162.253 (External AS
4755),
connection collision prefers 203.197.162.253+5

########### BGP PEER in ESTABLISHED STATE ##############

May 28 17:28:28 BGP SEND 202.138.103.225+1601 -> 203.197.162.253+179
May 28 17:28:28 BGP SEND message type 2 (Update) length 47
May 28 17:28:28 BGP SEND flags 0x40 code Origin(1): IGP
May 28 17:28:28 BGP SEND flags 0x40 code ASPath(2): 18101 4755
May 28 17:28:28 BGP SEND flags 0x40 code NextHop(3): 202.138.103.225
May 28 17:28:28 BGP SEND        202.54.12.0/24
May 28 17:28:28 bgp_read_v4_update: receiving packet(s) from
203.197.162.253 (External AS 4755)
May 28 17:28:28
May 28 17:28:28 BGP RECV 203.197.162.253+179 -> 202.138.103.225+1601
May 28 17:28:28 BGP RECV message type 2 (Update) length 49
May 28 17:28:28 BGP RECV flags 0x40 code Origin(1): IGP
May 28 17:28:28 BGP RECV flags 0x40 code ASPath(2): 4755
May 28 17:28:28 BGP RECV flags 0x40 code NextHop(3): 203.197.162.253
May 28 17:28:28 BGP RECV        202.54.1.0/24 , 202.54.13.0/24
May 28 17:28:28
May 28 17:28:28 BGP RECV 203.197.162.253+179 -> 202.138.103.225+1601
May 28 17:28:28 BGP RECV message type 4 (KeepAlive) length 19
May 28 17:28:28 bgp_read_v4_update: done with 203.197.162.253 (External
AS
4755) received 68 octets 1 update 2 routes
May 28 17:28:28 bgp_send: sending 51 bytes to 203.197.162.253 (External
AS
4755)
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