[148807] in North American Network Operators' Group

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Re: juniper mx80 vs cisco asr 1000

daemon@ATHENA.MIT.EDU (Mark Tinka)
Mon Jan 23 13:33:28 2012

From: Mark Tinka <mtinka@globaltransit.net>
To: amaged@gmail.com
Date: Tue, 24 Jan 2012 02:32:31 +0800
In-Reply-To: <47329025-1327332595-cardhu_decombobulator_blackberry.rim.net-1993554740-@b3.c16.bise7.blackberry>
Cc: nanog@nanog.org
Reply-To: mtinka@globaltransit.net
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

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On Monday, January 23, 2012 11:29:57 PM amaged@gmail.com=20
wrote:

> ASR 1000 does not run XR. You probably mean XE.

Indeed, I did, as I clarified in some private responses as=20
well. I thought it would be obvious so I decided not to=20
publicly correct it :-).

> The high availability features that requires maintaining
> state and stateful switch over never seem to work out of
> the box on early releases and need some time until the
> feature gets mature. I've found this across different
> vendors.

To be fair, I've only ever used SSO on the CRS and ASR1000;=20
fairly happy with those jobs. The same on a 6500 was an=20
utter fail, but we mostly kit those out with single SUP720's=20
anyway, so no point for SSO.

The rest of our Cisco is 7200's, which are just a single=20
control plane.

GRES on Juniper works pretty well, provided you understand=20
the caveats, e.g., Multicast isn't maintained across=20
failovers, e.t.c.

Other kinky HA features like ISSU for this or that protocol=20
is too sexy for us. BFD is as exotic as we'll get, plus a=20
little bit of IETF Graceful Restart (not NSR here).

> The dual IOS process works best with two Routing
> Engines/ESPs on higher models.

Well, if you have dual RP's, you don't need the dual IOS XE=20
software process then :-).

Mark.

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