07-13-2008 07:52 PM - edited 03-06-2019 12:09 AM
Hi Guys,
I need help on the standby tracking command. There are two switches (Switch 1 and Switch 2). The switch 1 is active for all the vlans and has priority of 110 and switch 2 is standby for all the vlans. The configuration is :
switch01#sh run int vlan 224
Building configuration...
Current configuration : 260 bytes
!
interface Vlan224
ip address 10.150.255.225 255.255.255.248
no ip redirects
no standby redirect
standby 224 ip 10.150.255.227
standby 224 priority 110
standby 224 preempt
standby 224 track GigabitEthernet1/3 (Connected to remote switch sw01)
standby 224 track GigabitEthernet1/4 (Connection to remote switch sw02)
end
switch1#sh standby vlan 224
Vlan224 - Group 224
Local state is Active, priority 110, may preempt
Hellotime 3 sec, holdtime 10 sec
Next hello sent in 2.368
Virtual IP address is 10.150.255.227 configured
Active router is local
Standby router is 10.150.255.226 expires in 7.576
Virtual mac address is 0000.0c07.ace0
1 state changes, last state change 2d08h
IP redundancy name is "hsrp-Vl224-224" (default)
Standby ICMP redirects disabled
Priority tracking 2 interfaces, 2 up:
Interface Decrement State
GigabitEthernet1/3 10 Up
GigabitEthernet1/4 10 Up
interface GigabitEthernet1/3
description trunk link to nfausyslsw03 2/49
no ip address
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 255
switchport trunk allowed vlan 224,238,239,241,243-247,250,252,255,548
switchport mode trunk
spanning-tree guard root
interface GigabitEthernet1/4
description trunk link to nfausyslsw04 2/49
no ip address
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 255
switchport trunk allowed vlan 224,238,239,241,243-247,250,252,255,548
switchport mode trunk
spanning-tree guard root
There are several vlans going on trunk g1/3 and g1/4. If the g 1/3 goes down on switch 1 will the same switch be the active switch for all the vlans as it has still got int g1/4 up or the second switch will become the active switch for all the vlans.
Tks & Rgds
Solved! Go to Solution.
07-13-2008 09:03 PM
It depends on the decrement value placed on each tracking interface.
Currently, the active switch has a priority of 110. If the standby switch has the default value of 100, the standby will only take over if the priority in the active switch is less than 100.
Therefore, if you want this switch to be the active HSRP VIP, then just apply a decrement of 6 on G1/3 tracking entry (if it goes down the priority changes from 110 to 104) and also add a decrement of 6 on G1/4 tracking entry (if it goes down along with G1/3 the priority changes from 104 to 98).
HTH,
__
Edison.
Please rate helpful posts
07-13-2008 09:03 PM
It depends on the decrement value placed on each tracking interface.
Currently, the active switch has a priority of 110. If the standby switch has the default value of 100, the standby will only take over if the priority in the active switch is less than 100.
Therefore, if you want this switch to be the active HSRP VIP, then just apply a decrement of 6 on G1/3 tracking entry (if it goes down the priority changes from 110 to 104) and also add a decrement of 6 on G1/4 tracking entry (if it goes down along with G1/3 the priority changes from 104 to 98).
HTH,
__
Edison.
Please rate helpful posts
07-13-2008 09:43 PM
Hi
The 2 link which u r using for the connectvity i think one of them should be in blocking mode to prevent the stp loop.
If the active link goes down its going to take normal stp timers to converge and the original active router will be the same.
Thanks
Mahmood
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