Wednesday, June 24, 2020

Nexus HSRP High Latency on 2nd switch

Hello,

I am moving routing from a 4507 to pair of nexus 9372TX setup in VPC. I am configuring HSRP on all of the interfaces but noticed that my latency has been horrible since the move. When i do a direct ping to interface IP of switch1 i get under 1ms while the 2nd one i get 1000ms+. Anyone have any ideas?

on both i have for VPC

vpc domain 1

peer-keepalive destination 10.10.x.1 source 10.10.x.2 vrf keepalive

peer-gateway

auto-recovery

interface port-channel1

switchport mode trunk

switchport trunk allowed vlan 1-x,x,x,x,x,x,xx,x,x,

spanning-tree port type network

vpc peer-link

switch 1

interface Vlan5

  no ip redirects

  no ip proxy-arp

  ip address 10.10.5.253/24

  hsrp version 2

  hsrp 5

    authentication md5 key-chain HSRP-KEY

    preempt delay minimum 180

    priority 120

    ip 10.10.5.1

exit

switch 2

interface Vlan5

no shutdown

no ip redirects

ip address 10.10.5.254/24

no ipv6 redirects

hsrp version 2

hsrp 5

authentication md5 key-chain HSRP-KEY

priority 90

ip 10.10.5.1

10.10.5.254 would have a huge amount of latency and the 253 is fine, happens for all SVIs

the reason i am looking into this is because its affecting certain traffic such as internet bound traffic but its weird traffic going to my site to site vpn is fine and its going to the same firewall.



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