nanog mailing list archives
Re: BGP4 peering wiht Sprint, and MCI
From: Curtis Villamizar <curtis () ans net>
Date: Mon, 16 Oct 1995 11:35:32 -0400
In message <Pine.LNX.3.91.951014142731.10170A-100000 () netrail net>, Nathan Strat ton writes:
We have a 486 DX4 100 with 40 megs of ram running FreeBSD and gated with a T1 to Sprint and a T1 to MCI. I have a few questions that someone may be able to answer. If my Sprint T1 goes down, how long will it take for route to drop out of the routing table?
If the interface is marked down, worst case is 15 seconds for gated to scan the interfaces. Since most interfaces don't get marked down when signal is lost, you are likely to end up waiting the BGP 180 second timeout (assuming you are running BGP). You can set BGP to send keepalives more often, though this can be a bad idea for other reasons. The holdtime is always 3 time the keepalive interval.
I have peering going with sprint and MCI and I have about 31,000 routes in my routing table. When I called up sprint and MCI they said they were not getting routes form me. How do I advertize my CIDR blocks to sprint and mci via BGP4? I have: 204.17.64.0/24 204.183.0.0/19 205.215.0.0/18
near the top: aggregate 204.17.64.0 masklen 24 { proto <your-igp> { 204.17.64.0 masklen 24 refines; # assuming you have only subnets }; }; aggregate 204.183.0.0 masklen 19 { proto <your-igp> { 204.183.0.0 masklen 19 refines; # accept any subnmet into the aggr }; }; ... near the bottom: export proto bgp 3651 { proto aggregate { 204.17.64.0 masklen 24; 204.183.0.0 masklen 19; 205.215.0.0 masklen 18; }; };
Nathan Stratton CEO, NetRail, Inc. Your Gateway to the Wor ld! --------------------------------------------------------------------------- Phone (703)524-4800 NetRail, Inc. Fax (703)534-5033 2007 N. 15 St. Suite B-5 Email sales () netrail net Arlington, Va. 22201 WWW http://www.netrail.net/ Access: (703) 524-4802 guest ---------------------------------------------------------------------------
Current thread:
- Funding for NAPs... Matt Zimmerman (Oct 06)
- Re: Funding for NAPs... Dave Siegel (Oct 06)
- BGP4 peering wiht Sprint, and MCI Nathan Stratton (Oct 14)
- Re: BGP4 peering wiht Sprint, and MCI Curtis Villamizar (Oct 16)
- BGP4 peering wiht Sprint, and MCI Nathan Stratton (Oct 14)
- Re: Funding for NAPs... bmanning (Oct 07)
- Re: Funding for NAPs... Paul Love (Oct 07)
- Re: Funding for NAPs... Jon Zeeff (Oct 07)
- Re: Funding for NAPs... D. Brian Kimmel (Oct 07)
- Re: Funding for NAPs... Bill Manning (Oct 09)
- Re: Funding for NAPs... Paul Love (Oct 07)
- <Possible follow-ups>
- Re: Funding for NAPs... John G. Scudder (Oct 07)
- Re: Funding for NAPs... Gordon Cook (Oct 07)
- Re: Funding for NAPs... Nathan Stratton (Oct 07)
- Re: Funding for NAPs... Gordon Cook (Oct 07)
- Re: Funding for NAPs... joliveto (Oct 08)
- Re: Funding for NAPs... Gordon Cook (Oct 07)
- Re: Funding for NAPs... Dave Siegel (Oct 06)