[j-nsp] Graceful restart & Graceful switchover

[Hemant Narkhede]

Hi Wlliam,

But do u think enabling Graceful restart for all protocols going to affect
routers RE's graceful switchover process ?

When I switch from RE 0 to RE 1 failover works fine. But when switch from RE
1 to RE 0 then all FPC reboots. That means switchover takes place
successfully but packet drop will be there since FPC rebooting/initialising.

Still I will check this & get back to you,

Thanks & Regards,

Hemant N.

-----Original Message-----
From: William Phang [mailto:phangjk at hotpop.com] 
Sent: Monday, June 06, 2005 9:05 AM
To: hemantn at houstontechnologies.com; gtate at juniper.net
Cc: juniper-nsp at puck.nether.net; pekkas at netcore.fi
Subject: RE: [j-nsp] Graceful restart & Graceful switchover

I think you may need to delete the "failover on-loss-of-keepalives".

The following config which I have tested with zero packet loss:

chassis {
    redundancy {
        routing-engine 0 master;
        routing-engine 1 backup;
        graceful-switchover {
            enable;
        }
    }

To enable the Graceful-Restart for all protocols use the following config:

routing-options {
    graceful-restart;
   }

We need to configure Grateful-Restart for all protocols which running on the
router. 


Regards,

William

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Hemant Narkhede
Sent: Friday, June 03, 2005 2:06 PM
To: gtate at juniper.net
Cc: juniper-nsp at puck.nether.net; pekkas at netcore.fi
Subject: [j-nsp] Graceful restart & Graceful switchover

hi,

I am having M40e router with dual RE.

I am facing problem with Graceful swithover. When I do configuration as
follows:

RE1

chassis {
    redundancy {
        routing-engine 0 master;
        routing-engine 1 backup;
        sfm 0 preferred;
        failover on-loss-of-keepalives;
        graceful-switchover {
            enable;
        }

RE0

chassis {
    redundancy {
        routing-engine 0 master;
        routing-engine 1 backup;
        sfm 0 preferred;
        failover on-loss-of-keepalives;
        graceful-switchover {
            enable;

Is this a right configuration for graceful switchover? If yes, then traffic
should forward through router without interupting.

I am running OSPF,BGP & MPLS on my M40e. Is it necssary to configure
Graceful-restart for those protocol so that graceful switchover between RE's
work ?

Hemant Narkhede


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