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bgp output interpretation


What does the below output means.This is from a bgp running router.

s ip bgp vpnv4 vrf V23456:abcd

BGP table version is 145693421, local router ID is

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 65000:23456 (default for vrf V23456:abcd)

*>i0.0.0.0 0 100 0 1 i

*> 0 0 1 ?

*> 0 0 1 ?

* i100.84.0.0/18 0 100 0 6500 ?

*>i 0 100 0 6500 ?

* i100.70.1.0/28 0 100 0 6500 ?

*>i 0 100 0 6500 ?



Re: bgp output interpretation


There is a whole heck of a lot to say about this output. What exactly do you want to understand?

It is showing some bgp table information for a specific VRF instance on that router.


Hall of Fame Super Silver

Re: bgp output interpretation

Hello Sunny,

as Victor says a lot of things could be said.

First of all, there is a default route coming from next hop with metric 0, local pref 100, weight 0, with AS path = "1" and origin code internal (i).

This probably provides the exit point to internet.

In the same way you can go on and analyze the other prefixes: with next-hop from AS 1 (origin ? redistributed into BGP)

Then there are 2 prefixes learned by an iBGP session (the i on the left second position means iBGP)

for prefix the best path is that via (> means best)

Another path exists via

Actually the same happens for prefix

iBGP neighbor can have a better lower IGP metric or simply it has a lower BGP router-id (that can be the same ip address or another one).

Hope to help


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