[181017] in North American Network Operators' Group
Re: Question about EX - SRX redundancy
daemon@ATHENA.MIT.EDU (Rob Greenwood)
Sat Jun 13 22:57:15 2015
X-Original-To: nanog@nanog.org
From: Rob Greenwood <bilco105@gmail.com>
In-Reply-To: <CAJ0+aXabO5GCbWgoCERjqcX8DWiK9q3Pj7bmQkFkY41P8TBSLA@mail.gmail.com>
Date: Sat, 13 Jun 2015 23:12:28 +0100
To: Anurag Bhatia <me@anuragbhatia.com>
Cc: NANOG Mailing List <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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> 3. In case of SRX only one device runs at a time and ports of other =
SRX
> (slave) do not access traffic at all as long as it see the master is =
up via
> heartbeat.
Not entirely accurate. The control plane (routing engine) is only active =
on one SRX at a time, however, the data plane is active on both. This =
means in your configuration, both ae1 and ae2 on the EX will be passing =
traffic to both SRXs.
It=E2=80=99s also worth noting you can create multiple redundancy groups =
and split them between both SRXs. If a device fails, all redundancy =
groups on the failed device will be migrated to the remaining one.
-Rob
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