From: Jay Chandradas (jachandr@cisco.com)
Date: Thu May 08 2003 - 15:15:26 GMT-3
The standby preempt interface configuration command allows the router to
become the active router when its priority is higher than all other
HSRP-configured routers in this Hot Standby group. Being said that, I think
w/o preempt command router B will not become active, even if router A is
offline.
This is what I think ..
-Jay
CCIE#8060 ( R&S, Security )
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
lg01
Sent: Thursday, May 08, 2003 8:37 AM
To: ccielab@groupstudy.com
Subject: HSRP question
Hello Group,
If I have 2 ethernet interfaces routers configured with HSRP, is it
necessary to have the "preempt" option on the 2nd (lower priority router)?
Say RouterA
int eth0
ip address 192.168.1.1 255.255.255.0
standby 1 ip 192.168.1.10
standby 1 priority 200
standby 1 authentication cisco
standby 1 preempt
And on RouterB
int eth0
ip address 192.168.1.2 255.255.255.0
standby 1 ip 192.168.1.10
standby 1 priority 150
standby 1 authentication cisco
standby 1 preempt ----- Is this needed?
The logic I am thinking is that since RouterB has a lower HSRP priority, if
RouterA is offline, it will become the primary router. But if RouterA is
online, it will always be on Standby anyway, so I'm not sure whether there
is any need for this.
Any input / advice would be greatly appreciated.
Regards,
H.
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