RE: [j-nsp] Redundancy configurations

From: Stephen Gill (gillsr@yahoo.com)
Date: Thu Oct 18 2001 - 03:22:53 EDT


This manual page might help...

http://www.juniper.net/techpubs/software/junos50/swconfig50-getting-star
ted/html/sys-mgmt-summary35.html

For example, to monitor the routing process on the routing engine and
have it cause a failover if fails repeatedly:

[edit system processes]
 set routing failover other-routing-engine

-- steve

-----Original Message-----
From: Andrew Smith [mailto:as160@yahoo.com]
Sent: Thursday, October 18, 2001 1:44 AM
To: Stephen Gill; juniper-nsp@puck.nether.net
Subject: RE: [j-nsp] Redundancy configurations

--- Stephen Gill <gillsr@yahoo.com> wrote:
> What you are witnessing is the router bypassing the
> timers for the sake
> of efficiency. It knows there is no primary RE in
> the slot, or that you
> requested mastership control on the secondary.
>
> The timers are for times when the router is not as
> keenly aware of such
> problems and is looking for keepalive messages to
> detect them. Keep in
> mind that you can also increase granularity by
> monitoring individual
> processes on the primary RE to cause a failover if a
> process fails 3
> times in rapid succession.

Can you give a more detailed example?

> -- steve
>
> -----Original Message-----
> From: Andrew Smith [mailto:as160@yahoo.com]
> Sent: Thursday, October 18, 2001 12:53 AM
> To: juniper-nsp@puck.nether.net
> Subject: [j-nsp] Redundancy configurations
>
> Hi, all
>
> I am a bit confused about the RE redundancy.
>
> It says in the doc that,
> "
> The sequence of events is as follows:
> 1. After 20 seconds of keepalive loss, a message is
> logged.
> 2. After 300 seconds of keepalive loss (default
> setting), the backup Routing Engine
> attempts to assume mastership. An alarm is generated
> whenever the backup is active
> and the display is updated with status."
>
> My confusion comes in because if I pulled Active RE
> or
> use cli to do a master toggle. The back up RE seems
> to start process to come online right away. So,
> which
> situations the above timers are applied to?
>
> Thanks for the explanations.
>
> ---andrew
>
> __________________________________________________
> Do You Yahoo!?
> Make a great connection at Yahoo! Personals.
> http://personals.yahoo.com
>
>
>
_________________________________________________________
> Do You Yahoo!?
> Get your free @yahoo.com address at
> http://mail.yahoo.com
>

__________________________________________________
Do You Yahoo!?
Make a great connection at Yahoo! Personals.
http://personals.yahoo.com

_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com



This archive was generated by hypermail 2b29 : Mon Aug 05 2002 - 10:42:37 EDT