My ISP mistakenly gave me a duplicate ASN for one of my sites. So 2 sites have the same ASN - lets say 45009. One site should be 45010 and the other 45009. THe ISP has assigned me the new number but wants to schedule a "cutover". I thought I would just make the change on my router and then do a #clear ip bgp *
Although it just occurred to me that I'd probably lose connectivity to the router as I'll be doing this remotely. I could probably do a reload in 5 command or have someone on site.
The ISP will need to change their neighbor statement to you also, which is why they may want to do a cut. Even if you changed your end, they'll need to change the AS that they're peering with. Until they do that, your peering wouldn't come up.
As far as changing your config, you wouldn't be able to change this remotely unless you have a backup circuit into the site. That being said, you can change your startup config. What I would do is to tftp their current running config, modify it to the new asn, and then tftp it back to the startup config. Then reload the router. The router will come up with the new config, but you'll still probably want to have someone onsite in case something doesn't work as expected.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...