nanog mailing list archives
Re: BGP and aggregation
From: Scott Granados <scott () graphidelix net>
Date: Sun, 12 May 2002 12:58:54 -0700 (PDT)
Don't forget that if both sites use the same as even if the connection link drops they will not be able to see each other over the upstream provider as routers won't take the srutes from the same as. If this isn't a problem don't worry about it. If you wish to preserve connectivity between cities you should have a back-up link or use different as's or gre tunnels:). On Sat, 11 May 2002, Ralph Doncaster wrote:
I have transit in 2 cities. I have a circuit connecting the 2 cities as well. So far I've been using non-contiguous IPs, so there's been no opportunity for aggregation. Having just received my /20 from ARIN, I'm trying to plan my network. Lets say I split the /20 into 2 /21's, one for each city. I'd like to announce the aggregate /20 instead of 2 /21's, as long as the circuit connecting the 2 cities is working. If the circuit goes down I want each city to announce the local /21. Is this possible? (using either a Cisco router or Zebra) Ralph Doncaster principal, IStop.com div. of Doncaster Consulting Inc.
Current thread:
- Re: BGP and aggregation, (continued)
- Re: BGP and aggregation E.B. Dreger (May 12)
- Re: BGP and aggregation Stephen Griffin (May 13)
- Re: BGP and aggregation Ralph Doncaster (May 13)
- Re: BGP and aggregation Scott Granados (May 13)
- Re: BGP and aggregation Ralph Doncaster (May 11)
- Re: BGP and aggregation Scott Granados (May 12)
- Re: BGP and aggregation Ralph Doncaster (May 11)
- Re: BGP and aggregation Stephen Griffin (May 12)
- Re: BGP and aggregation Stephen J. Wilcox (May 12)
- Re: BGP and aggregation Scott Granados (May 12)
- Re: BGP and aggregation E.B. Dreger (May 12)
- Re: BGP and aggregation Richard A Steenbergen (May 12)
- Re: BGP and aggregation Forrest W. Christian (May 12)
- Re: BGP and aggregation Ralph Doncaster (May 12)
- Re: BGP and aggregation E.B. Dreger (May 12)
- Re: BGP and aggregation PS (May 13)
- Re: BGP and aggregation Austin Schutz (May 13)