North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: BGP Setup

  • From: Edward B. Dreger
  • Date: Tue Jul 06 20:27:35 2004

BP> Date: Tue, 6 Jul 2004 19:02:23 -0500
BP> From: Bubba Parker

Try going to www.isp-bgp.com and subscribing to that list.  It
sounds like you want more description than what NANOG would
consider useful signal...


BP> OK, I've got one DS3 from one provider, and a T1 from

They won't balance well.  Do you want the T1 for backup only?


BP> another. My DS3 comes into router A, and the T1 into router
BP> B.  Both routers are accessible via ethernet and have both
BP> 10.0.0.x IPs and static ones from a provider.  I've got a

You should configure loopback addresses on your routers, then use
something like OSPF to carry the loopbacks.


BP> full BGP feed from each provider on each router, and I have
BP> the two routers setup in a peer group to receive each others
BP> routes from the two providers.

That's not the definition of peer group.  One configures peer
groups like macros to apply BGP neighbor commands to multiple
neighbors without retyping everything each time.  The routers can
talk without peer groups -- and with only two routers, peer
groups actually are nothing more than "planning ahead".


BP> I'm running quagga for BGP, so, for example, if I do a "show
BP> ip bgp x.x.x.x" it'll show both paths to it from each
BP> provider, just like on a Cisco router.

Irrelevant.


BP> My question is, how do I get routers on the same local lan
BP> as these two routers to utilize the "best" path found from
BP> BGP?  And I also want to configure these two routers to be a

iBGP


BP> redundant link, so local lan boxes will always have
BP> connectivity, should one provider go down, but I'm not sure
BP> how to configure that.

iBGP + HSRP + not nailing your routes to loopback


BP> Can someone explain what needs to be done for me to
BP> accomplish this? Thanks.

Try a Google search for some of the terms I've mentioned.  Try
isp-bgp archives.  DO NOT redistribute externally-learned routes
to your providers.  Research distribute-list, filter-list, and
prefix-list before touching a live router.


Eddy
--
EverQuick Internet - http://www.everquick.net/
A division of Brotsman & Dreger, Inc. - http://www.brotsman.com/
Bandwidth, consulting, e-commerce, hosting, and network building
Phone: +1 785 865 5885 Lawrence and [inter]national
Phone: +1 316 794 8922 Wichita
_________________________________________________________________
DO NOT send mail to the following addresses:
[email protected] -*- [email protected] -*- [email protected]
Sending mail to spambait addresses is a great way to get blocked.