Rich LOL !! thanks for your input :)
From: Richard Irving <rirving@antient.org> To: Rolo Tomassi <rolotomassi32@hotmail.com> CC: nanog@merit.edu Subject: Re: Peering best practices advice needed. Date: Wed, 08 Dec 2004 12:56:13 -0500
Rolo Tomassi wrote:
Hi all,
Please forgive the simplistic nature of the query..
Basically my company is multi-homed with 2 different providers in the UK, and advertising a /18. Now some colleaguges in another part of the world want to break that /18 into two /19's and advertise one /19 and we advertise the other. This is fine, however we are NOT running IBGP in the core, therefore the UK customers in the /19 will not be able to reach the other /19 as there would be a loop detected through EBGP.
Pardon my simplistic solution, try dropping the /18, and -only- advertise the corresponding /19 from each region.
Now someone mentioned that we could use AS-LOOP-IN feature which will overcome this problem and allow us to route to each other via EBGP. I really think this is a bad idea but until we get an internal link - I dont see a way forward. So... anyone doing this currently in their network or have any "best practices" way round this. I want our company to be good Netizens but still be able to pass traffic between the 2 /19's.
See above. K.I.S.S. (No offense intended ;)
Any help would be greatly appreciated.
Rolo !
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