Some BGP routes getting frequent updates from ISP

[mahesh18]

Hi Everyone,

We are learning whole Internet Routing table from our ISP.

When I do sh ip route i see some routes with time period of 2 hours 9 hours etc.

some routes have timeperiod of 1 week or 1 year.

all these are from same ISP.

Does this mean that our link to ISP flapped?

why for some internet routes we see recent updates like 1 day or 2 day?

Regards

MAhesh

[johnd2310 · Accepted solution]

Hi,

It just means the routes have flapped in the given timestamp. The link to those networks has flapped. It has nothing  to do with your link which is working fine.

Thanks

John

[mahesh18]

Many thanks for replying to my question.

[Alan Ng'ethe · Accepted solution]

You already know this, but just putting it out here; the 'show ip bgp summary' command would be a quick way to determine whether the ISP peer(s) have recently flapped. Otherwise the answer by the johnd seems correct.