What is the meaning of i/c in BGP's Origin attribute?
14058
Created On 08/05/20 03:22 AM - Last Modified 05/26/22 03:54 AM
Question
What is i/c in BGP's Origin attribute?
Environment
Any BGP peering with the PA firewall
Answer
From the article "What is the BGP Best Path Selection Process?" BGP origin is one of the attributes that can influence the route selection process for outbound traffic.
Below are the three different possible values of BGP route origin.
admin@jico-100-Unit_1> show routing protocol bgp loc-rib prefix 192.168.12.0/24
VIRTUAL ROUTER: default (id 1)
==========
Prefix Nexthop Peer Weight LocPrf Org MED flap AS-Path
*192.168.12.0/24 192.168.9.2 UNIT2viaIPSEC 0 100 igp 0 0 501 <<<<<< IGP
admin@jico-100-Unit_1> show routing protocol bgp loc-rib prefix 192.168.12.0/24
VIRTUAL ROUTER: default (id 1)
==========
Prefix Nexthop Peer Weight LocPrf Org MED flap AS-Path
*192.168.12.0/24 192.168.9.2 UNIT2viaIPSEC 0 100 egp 0 0 501 <<<<<< EGP
admin@jico-100-Unit_1> show routing protocol bgp loc-rib prefix 192.168.12.0/24
VIRTUAL ROUTER: default (id 1)
==========
Prefix Nexthop Peer Weight LocPrf Org MED flap AS-Path
*192.168.12.0/24 192.168.9.2 UNIT2viaIPSEC 0 100 i/c 0 0 501 <<<<<< Incomplete