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VRRP Virtual IP ping packet loss

ad27singh
Level 1
Level 1

Hi All,

 

We have a customer on MPLS cloud with multiple sites. Each site has two routers. One is public router with a tunnel back to head office and other is the MPLS router. Both router have vrrp configured on the LAN interface.

 

When I ping the virtual IP of VRRP I get these ping results: 

Success rate is 100 percent (100/100), round-trip min/avg/max = 28/44/724 ms

 

And when I ping the Interface IP under which VRRP is configured I get these results

Success rate is 100 percent (100/100), round-trip min/avg/max = 20/21/24 ms

 

So when I ping from the headoffice to a device on the LAN of this site i get

Success rate is 100 percent (100/100), round-trip min/avg/max = 28/44/712 ms

 

Does this means there is any issue with the hardware/backplane as the interface IP and the virtual IP for vrrp both lie on the router itself.

config looks like this[IP's modified]

 

ip dhcp pool DATA
network 10.1.1.0 255.255.255.0
default-router 10.1.1.2

 

interface GigabitEthernet0/1
description LAN
ip address 10.1.1.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip virtual-reassembly in
rate-limit output access-group 123 1000000 12500 12500 conform-action transmit exceed-action drop
duplex auto
speed auto
vrrp 1 ip 10.1.1.2
vrrp 1 timers advertise msec 100
vrrp 1 priority 110
vrrp 1 track 1 decrement 20

 

I'm new to this so please be kind

 

TIA :)

1 Reply 1

Hello,

 

it could just be that ICMP on virtual interfaces is treated as extremely low priority by the CPU, which would explain why ping responses are slow. Depending on your platform, and if you really want to change that behavior, you could configure the control plane. Which routers do you have ?