[96561] in North American Network Operators' Group

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Re: Juniper M10i sufficient for BGP, or go with M20?

daemon@ATHENA.MIT.EDU (sthaug@nethelp.no)
Mon May 14 07:39:43 2007

Date: Mon, 14 May 2007 13:38:45 +0200 (CEST)
To: neal@lists.rauhauser.net
Cc: nanog@merit.edu
From: sthaug@nethelp.no
In-Reply-To: <46476814.4090705@lists.rauhauser.net>
Errors-To: owner-nanog@merit.edu


>   I don't know much about Juniper but I'm about to learn with a new job. 
> If I'm going to take full routes from a couple of upstreams and have a 
> couple of peers will the M10i (768M max) be enough or is the M20 (2048M 
> max) a better choice. Layout here is such that I'd expect to use a 
> single quad gigabit port ethernet blade in each of a pair of M10i/M20 to 
> achieve redundancy.

As mentioned in another email, the M10i can use the RE-850 which has
1.5 GByte on the RE.

As for the GigE cards: Note that the 4 port GigE PIC for M10i/M7i
(PE-4GE-TYPE1-SFP-IQ2) has 1 GigE (full duplex) backplane capacity,
thus you will *not* be able to run all 4 ports line rate at the same
time. I haven't checked whether the same restriction also applies to
the corresponding M20 card.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

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