You can configure which routing engine is a master and which one is a slave
by going into the "chassi redundancy" and specifying which re is
master/slave or disabled. Then follow what Tony said below.
JunoGuy
----- Original Message -----
From: "Tony Mumm" <tonym@netins.net>
To: "Przemyslaw Karwasiecki" <karwas@ifxcorp.com>;
<juniper-nsp@puck.nether.net>
Sent: Wednesday, April 24, 2002 5:59 PM
Subject: RE: M20 route-engine redundancy
>
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> Yes you can, just login to the redundant engine and perform the
> software upgrade. When you upgrade the master however, it is
> unavoidable for BGP to be reset. However, it won't fail over to the
> secondary (unless you want it to), as it comes back faster than the
> failover threshold.
>
> Tony
>
> - -----Original Message-----
> From: Przemyslaw Karwasiecki [mailto:karwas@ifxcorp.com]
> Sent: Wednesday, April 24, 2002 4:23 PM
> To: juniper-nsp@puck.nether.net
> Subject: M20 route-engine redundancy
>
>
> Hello,
>
> I have M20 with two route-engines carying production traffic.
> Currently re0 is slave and re1 is master.
>
> Can I upgrade software on re0 (slave) and reboot it somehow
> without re master re-election?
>
> I cannot affect production traffc, and I am affraid that after
> reboot, re0 will be elected as master, and failover will reset
> all BGP sessions etc. which i absolutly cannot allow to happen....
>
> Thank you,
>
> PRzemek
>
> PS.
> Is there any specific requirement for PCMCIA (external) flash
> disks for M20?
>
> Thanks
>
>
>
>
>
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