10-25-2015 06:05 AM - edited 03-05-2019 02:35 AM
Hi,
There is a strange problem between two data centers having dark fiber connectivity. Data center-1 has Cisco nexus pair of switches and
data center-2 has Cisco 4500 pair of switches. HSRP is running on both sides the issue is at nexus side the active nexus IP some times ping and some times does not ping. It also makes VIP at nexus hsrp side down. Even arp is not available at that side for only the one side. The standby switch is ping able always. any suggestion
10-25-2015 08:30 AM
Hi,
Can you post the HSRP configs from both Nexus switches for one or 2 vlans with issues?
Are you running HSRP ver 2?
HTH
10-25-2015 11:07 PM
hsrp v2
interface Vlan255
no ip redirects
ip address 10.13.255.2/24
ip directed-broadcast
no ipv6 redirects
ip ospf passive-interface
ip router ospf 100 area 0.0.0.1
hsrp 255
preempt
ip 10.13.255.1
interface Vlan300
no ip redirects
ip address 10.13.3.2/24
ip ospf passive-interface
ip router ospf 100 area 0.0.0.1
hsrp 235
preempt
ip 10.13.3.1
interface Vlan255
ip address 10.13.255.3/24
ip directed-broadcast
no ipv6 redirects
ip ospf passive-interface
ip router ospf 100 area 0.0.0.1
hsrp 255
preempt
ip 10.13.255.1
interface Vlan300
no ip redirects
ip address 10.13.3.2/24
no ipv6 redirects
ip ospf passive-interface
ip router ospf 100 area 0.0.0.1
hsrp 235
preempt
ip 10.13.3.1
10-26-2015 07:34 AM
Hi, There is a strange problem between two data centers having dark fiber connectivity. Data center-1 has Cisco nexus pair of switches and data center-2 has Cisco 4500 pair of switches. HSRP is running on both sides the issue is at nexus side the active nexus IP some times ping and some times does not ping. It also makes VIP at nexus hsrp side down. Even arp is not available at that side for only the one side. The standby switch is ping able always. any suggestion
Hi Rizwan,
Is these Nexus devices are in vPC pairs, If yes as part of recommended practice and based on configuration you should configure HSRP on the primary vPC peer device as active and HSRP on the vPC secondary devices as standby.
Hope it Helps..
-GI
Rate if it Helps
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