From: Keane, James (James.Keane@agriculture.gov.ie)
Date: Thu Jun 23 2005 - 09:09:38 GMT-3
I think your problem is that they both have a priority of 100 so the preemptive behavior cant be implemented.
Your best bet is to configure it fully
like so
Router A
interface fastethernet0/0
ip address 10.10.32.1 255.255.255.0
vrrp 1 ip 10.10.32.1
vrrp 1 priority 110
vrrp 1 preempt delay 5
Router B
interface fastethernet0/0
ip address 10.10.32.2 255.255.255.0
vrrp 1 ip 10.10.32.1
vrrp 1 priority 100
Am I correct to think that only the higher priority needs the preempt ??
If you have A up and B goes down, b comes back, it then doesnt need to preempt, as A is the master and stays master ?
on the other hand
if A goes down and B is made master, A comes back, it needs preempt to take over ..
I put a 5 second delay here, so flapping interfaces doent cause instability / convergence issues.
if this doesnt work put on 'debug vrrp all' and post it please !
James
-----Original Message-----
From: George Red [mailto:cisc0day@yahoo.it]
Sent: 23 June 2005 10:28
To: Fellenbaum, John D; ccielab@groupstudy.com
Subject: RE: VRRP problem
John,
in the document that you indicated me it's said :
If preemption is disabled, the virtual router backup that is elected to become virtual router master remains the master until the original virtual router master recovers and becomes master again.
My problem is that even if the master router recovers, the backup router remains master.
I think this behaviour is not correct.
HTH,
George
"Fellenbaum, John D" <john.d.fellenbaum@lmco.com> ha scritto:
George,
Check out the following document:
http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_
chapter09186a008042fbd9.html
Look for the section about preemption and priority.
HTH,
John
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
George Red
Sent: Tuesday, June 21, 2005 12:59 PM
To: ccielab@groupstudy.com
Subject: VRRP problem
Dear group,
i have a problem with vrrp.
I have two routers with the following configuration
Router A
interface fastethernet0/0
ip address 10.10.32.1 255.255.255.0
vrrp 1 ip 10.10.32.1
Router B
interface fastethernet0/0
ip address 10.10.32.2 255.255.255.0
vrrp 1 ip 10.10.32.1
Router A is the master; when i shut its fastethernet Router B becomes
master but when router A recovers, Router B remains master.
I expect instead that router A gets master again.
Can you help me with this problem?
Thanks in advance
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