BGP Table Origin Code

The BGP table contains various pieces of information about the status of BGP. The Origin Code, which is one of the BGP attributes, is placed at the end of each line of the table. Note that it does not have its own column, nor does it have a column heading. Refer to the following BGP table output:

Router# show ip bgp BGP table version is 22, local router ID is 10.1.1.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, x best-external Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path *> 10.1.1.1/32 0.0.0.0 0 32768 i *>i10.2.2.2/32 172.16.1.2 0 100 0 i *bi10.9.9.9/32 192.168.3.2 0 100 0 10 10 i *> 192.168.1.2 0 10 10 i * i172.16.1.0/24 172.16.1.2 0 100 0 i *> 0.0.0.0 0 32768 i *> 192.168.1.0 0.0.0.0 0 32768 i *>i192.168.3.0 172.16.1.2 0 100 0 i *bi192.168.9.0 192.168.3.2 0 100 0 10 10 i *> 192.168.1.2 0 10 10 i *bi192.168.13.0 192.168.3.2 0 100 0 10 10 i *> 192.168.1.2 0 10 10 i

The "i" at the end of each line indicates the origin code. Although it looks like it's part of the Path column, it is actually a separate piece of information.

Links:

https://networklessons.com/bgp/how-to-read-the-bgp-table

https://forum.networklessons.com/t/how-to-read-the-bgp-table/1234/55?u=lagapides

https://www.cisco.com/c/en/us/td/docs/ios/iproute_bgp/command/reference/irg_book/irg_bgp5.html#wp1156281

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