07-26-2010 09:51 AM - edited 03-06-2019 12:11 PM
I'm having an issue which I believe is either HSRP or STP. I have 2 - 6513s as my core switches with VLAN interfaces and spanning tree configured as in the example below:
Core 1
interface vlan 100
description XXX
ip address 10.123.100.2 255.255.255.192
ip helper-address 10.123.123.136
no ip redirects
no ip unreachables
ip pim sparse-dense-mode
standby 1 ip 10.123.100.1
standby 1 priority 95
spanning-tree vlan 100 priority 16384
Core 2
interface vlan 100
description XXX
ip address 10.123.100.3 255.255.255.192
ip helper-address 10.123.123.136
no ip redirects
no ip unreachables
ip pim sparse-dense-mode
standby 1 ip 10.123.100.1
standby 1 priority 105
standby 1 preempt
spanning-tree vlan 100 priority 12288
When I "show standby brief" the VLAN shows:
Core 1
95 - Standby - 10.123.100.3 - local - 10.123.100.1
Core 2
105 - Active - local - 10.123.100.2 - 10.123.100.1
The issue is the Virtual IP can only be pinged from .3 unless the .2 interface is shut. Any ideas??
07-27-2010 03:22 AM
Can you ping your Virtual IP from other switches, devices? can you ping your standby and active from other switches, devices? if yes, there should be no issue.
at least the "show standby brief" doesnt show anything strange. and your HSRP seems to be fully functioning.
07-27-2010 05:29 AM
When I ping from other switches and / or devices I can only ping the .2 & .3 not the VIP (.1). If I shut the .2 interface I can ping the .3 and the VIP (.1)
07-27-2010 03:27 PM
thats strange. your configurations posted seems valid, so the output of your hsrp instance. why dont you check your routing table, and spanning tree table. see which ports are forwarding which are not. do a drawing of how your network should look like and try to troubleshoot. traceroute will help as well. see if your arp is being distrubuted (for VIP).
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