BGP MISCELLANEOUS

• neighbor a.b.c.d TTL-security hops

- remember to enable the feature on both ends of peering, else session will not come up.
 
R1#sh bgp sum
BGP router identifier 150.1.1.1, local AS number 146
BGP table version is 270, main routing table version 270
40 network entries using 5280 bytes of memory
68 path entries using 3536 bytes of memory
19/12 BGP path/bestpath attribute entries using 3192 bytes of memory
6 BGP AS-PATH entries using 144 bytes of memory
2 BGP community entries using 48 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
Bitfield cache entries: current 2 (at peak 5) using 64 bytes of memory
BGP using 12264 total bytes of memory
Dampening enabled. 0 history paths, 0 dampened paths
BGP activity 148/108 prefixes, 1818/1750 paths, scan interval 60 secs

Neighbor        V        AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
155.1.0.5       4        200    8037    8197      270    0    0 01:28:49       19
155.1.13.3      4        200    7861    8092        0    0    0 00:00:45 Active
155.1.146.4     4        146    8469    8269      270    0    0 3d23h          30
155.1.146.6     4        146    7820    8186      270    0    0 3d23h          17
R1#config t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#router bgp 200
BGP is already running; AS is 146
R1(config)#router bgp 146
R1(config-router)#nei 155.1.13.3 ttl hop 1
R1(config-router)#
.Apr  8 00:34:46.955: %BGP-5-ADJCHANGE: neighbor 155.1.13.3 Up
R1(config-router)#

•