Hi guys,
My BGP went down suddenly and won't establish any longer, constantly getting the message saying "%BGP-3-NOTIFICATION: received from neighbor 10.254.241.1 2/8 (open: unknown subcode) 3 bytes 000101". BGP state is sitting in idle and sometimes goes to Active but never in Established state. This was working fine until I decided to redistribute EIGRP into BGP and vice-versa. As soon as I configured the redistribution, I started getting these message. Now I tried ip prefix filters, removing re-distribution, removing EIGRP altogether but success yet. I know my ISP has a prefix limit of 50 but here I am not even advertising 50 prefixes. My ISP tried resetting the peer but it didn't help.
Here's the BGP state:
BGP neighbor is 10.254.241.1, remote AS 2856, external link
Description: Peer to BT PE
BGP version 4, remote router ID 0.0.0.0
BGP state = Idle
Last read 00:00:26, last write 00:00:26, hold time is 180, keepalive interval is 60 seconds
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 46919 5
Notifications: 0 46919
Updates: 35 122
Keepalives: 10 10
Route Refresh: 0 0
Total: 46964 47056
Default minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
BGP table version 2894, neighbor version 0/0
Output queue size : 0
Index 1, Offset 0, Mask 0x2
1 update-group member
Inbound soft reconfiguration allowed
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 0 0
Prefixes Total: 0 0
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 0
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
Total: 0 0
Number of NLRIs in the update sent: max 28, min 1
Address tracking is enabled, the RIB does have a route to 10.254.241.1
Connections established 5; dropped 5
Last reset 18:57:36, due to BGP Notification received, open: unknown subcode
Transport(tcp) path-mtu-discovery is enabled
BGP configuration:
router bgp 64710
no synchronization
bgp log-neighbor-changes
network 10.220.255.24 mask 255.255.255.248
network 10.254.241.0 mask 255.255.255.252
redistribute eigrp 9000 route-map EIGRP-TO-BGP
neighbor 10.254.241.1 remote-as 2856
neighbor 10.254.241.1 description Peer to BT PE
neighbor 10.254.241.1 soft-reconfiguration inbound
no auto-summary
route-map EIGRP-TO-BGP permit 10
match ip address prefix-list EIGRP-TO-BGP
ip prefix-list EIGRP-TO-BGP seq 100 permit 10.160.0.0/16 le 24
ip prefix-list EIGRP-TO-BGP seq 120 permit 10.129.0.0/16 le 24
ip prefix-list EIGRP-TO-BGP seq 140 permit 10.220.0.0/16 le 24
Any idea why the BGP is not establishing?
Thanks,
Kiran
