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6500 HSRP failover

samirshaikh52
Level 2
Level 2

Hi Commnity,

We have two cisco 6500 swtiches. Switch A is a active state of HSRP and Switch B in stanby state, After 2 days we are going have go-live test for Switches failove redudancy.

Please see the sample HSRP confiuration for both switches

SWTICH A

interface Vlan 100
description << RECEPTION>>
ip address 10.1.2.254 255.255.255.0
ip route-cache flow
standby delay minimum 20 reload 25
standby 3 ip 10.1.2.1
standby 3 priority 110
standby 3 preempt delay minimum 380

SWITCH B

interface Vlan3
description << RECEPTION>>
ip address 10.1.2.253 255.255.255.0
ip route-cache flow
standby delay minimum 20 reload 25
standby 3 ip 10.1.2.1
standby 3 priority 95
standby 3 preempt delay minimum 380

SWITCH A# sh stanby brief

Interface   Grp      Prio      P     State        Active addr     Standby addr    Group addr

Vl3            3        110      P     Active       local              10.1.2.253        10.1.2.1

SWITCH B #

Interface   Grp      Prio      P     State        Active addr     Standby addr    Group addr

Vl3            3        95        P     Standby    local               local       10.1.2.1

If there is any misconfiguration, your sugesstion will be highly appreciated.

53 Replies 53

I think it's also recommended that trunks be set to desirable on one switch, the other to auto

http://www.cisco.com/en/US/customer/products/hw/switches/ps700/products_tech_note09186a00801429fb.shtml

glen.grant
VIP Alumni
VIP Alumni

  In your very first post I don't understand this config , you have the same address space in 2 different vlans . They should be in the same L3 vlan on both sides.  You have one side as vlan 100 and the other as vlan 3  .   I would verify you have not done this on other vlans too ...

Please see the sample HSRP confiuration for both switches

SWTICH A

interface Vlan 100
description << RECEPTION>>
ip address 10.1.2.254 255.255.255.0
ip route-cache flow
standby delay minimum 20 reload 25
standby 3 ip 10.1.2.1
standby 3 priority 110
standby 3 preempt delay minimum 380

SWITCH B

interface Vlan3
description << RECEPTION>>
ip address 10.1.2.253 255.255.255.0
ip route-cache flow
standby delay minimum 20 reload 25
standby 3 ip 10.1.2.1
standby 3 priority 95
standby 3 preempt delay minimum 380

Hi glen,

Actually it was wrongly posted, currently we are working here vlan 2 and vlan 19.

Hi,

I haven't recieved any reply so far from the experts.

Anyway I got it working.

Thanks to Jon and other people who showed there effort towards this issue and I really appreciate that.

What did you do to finally get it working?

---Mike

Like Mike, i would be very interested to hear what you did that made it work.

Jon

Hi Mike and Jon,

Here my scope was to test the two 6500 failover.

Finally I shutdown my core 1 and core 2 became active within 15 seconds. Everthing was working fine. No vlans got any issue.

I was really amazed.

Samir

Hi Jon,

I hope you are doing well.

Please can you check the below link for my post. and can you help me in that issue

https://supportforums.cisco.com/thread/2047503?tstart=0

I would be grateful.

Thank

kmothukuri
Level 1
Level 1

Dear Samir ,

Why don't you create ether channel between switches...instead of trunk link .

SWTICH A config :

interface Vlan 100
description << RECEPTION>>
ip address 10.1.2.254 255.255.255.0
ip route-cache flow
standby 3 ip 10.1.2.1
standby 3 priority 110
standby 3 preempt

interface Port-channel5

description ****Ether channel between 6500 *****

switchport

switchport trunk encapsulation dot1q

switchport mode trunk

Interface gig 2/23

switchport trunk encapsulation dot1q

switchport mode trunk

channel-group 5 mode on

SWITCH B

interface Vlan3
description << RECEPTION>>
ip address 10.1.2.253 255.255.255.0
ip route-cache flow
standby 3 ip 10.1.2.1
standby 3 preempt

interface Port-channel5

description ****Ether channel between 6500 *****

switchport

switchport trunk encapsulation dot1q

switchport mode trunk

Interface gig 2/23

switchport trunk encapsulation dot1q

switchport mode trunk

channel-group 5 mode on

Note : You can place one more port on ether channel so that you would have redundancy for ether channel link.

HSRP messages will be listened through ether channel and whenever you shut down vlan on switch A , vlan will be active on switch B immediatly.

With Rgds,

Satish

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