02-02-2009 01:29 PM - edited 03-06-2019 03:49 AM
Hi guys,
I have HSRP enabled and working for three VLANs across my switch environment. I am using 2 x 3560 to route on the internal LAN.
I have configured the switches as follows:
SW002
=========================================
SW002#SH RUN INT VLAN 20
Building configuration...
Current configuration : 147 bytes
!
interface Vlan20
description EXTERNAL CONTRACTOR vlan
ip address 192.168.20.2 255.255.255.0
standby 1 ip 192.168.20.1
standby 1 preempt
end
SW003
=========================================
SW003#SH run int vlan 20
Building configuration...
Current configuration : 188 bytes
!
interface Vlan20
description EXTERNAL CONTRACTOR vlan
ip address 192.168.20.3 255.255.255.0
standby 1 ip 192.168.20.1
standby 1 priority 105
standby 1 preempt delay minimum 60
end
The configuration is similar to that of other VLANS on the switches.
However for this VLAN both switches think that they are ACTIVE! As far as I can see the config looks fine.
I have been through the troubleshooting document and have verified the VTP configuration suggested and have checked physical cabling and all appears to be ok.
Any suggestions?
Thanks
Darren
Solved! Go to Solution.
02-02-2009 01:43 PM
Darren
In my experience one of the things that frequently causes this kind of symptom is that the switches do not realy have a valid and active connection in that vlan at layer 2. What does show cdp neighbor tell you about connectivity between the switches?
HTH
Rick
02-02-2009 01:43 PM
Darren
In my experience one of the things that frequently causes this kind of symptom is that the switches do not realy have a valid and active connection in that vlan at layer 2. What does show cdp neighbor tell you about connectivity between the switches?
HTH
Rick
02-02-2009 01:59 PM
Hi Rick,
Thanks for the pointer. I have now resolved the issue. It was my mistake. The VTP mode of one of the switches was not set correctly. I adjusted this and the standby configuration is not correct.
Thanks mate Darren
02-02-2009 02:18 PM
Darren
I am glad that you got it figured out and resolved the problem. Thank you for using the rating system to indicate that your problem was resolved (and thanks for the rating). It makes the forum more useful when people can read about a problem and can know that they will read how the problem was figured out and resolved.
HTH
Rick
02-02-2009 02:37 PM
Hi Rick,
No problem. Thankyou for the prompt response. For others reading this is should say in a previous post that standby problem 'now' fixed not 'not' fixed.
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