Ping Drop HSRP

[besart-rexhepi]

I don't understand why I'm getting Ping drops.

I have two C9500-24Y4Cs running HSRP

Example:

Switch 1
interface Vlan150
ip vrf forwarding TEST
ip address 172.22.2.252 255.255.255.0
ip helper-address 10.8.0.20
ip helper-address 10.8.0.21
standby version 2
standby 0 ip 172.22.2.1
standby 0 preempt

Switch 2
interface Vlan150
ip vrf forwarding TEST
ip address 172.22.2.253 255.255.255.0
standby version 2
standby 0 ip 172.22.2.1
standby 0 priority 99

When I try to ping 172.22.2.1 from switch 2 I get packet loose

Switch2#ping vrf TEST ip 172.22.2.1 repeat 1000
Type escape sequence to abort.
Sending 1000, 100-byte ICMP Echos to 172.22.2.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!
Success rate is 99 percent (999/1000), round-trip min/avg/max = 1/1/1 ms

Is this normal?

[M02@rt37]

hello @besart-rexhepi 

same symptom with repeat 200 as an example ?

ping to HSRP VIP from standby is not perfect 100% reliabilty, especially with that ping test.

[besart-rexhepi]

Thanks for your answer.

This was just an example. The real problem is this:

"vSphere HA has triggered a “Host Isolation IP not available” warning for esxi123 because it failed to ping the isolation address 172.22.2.1"

It doesn't happen all the time, but sometimes.

HSRP is working properly and the active switch is active all the time (So it hasn't failed over).


It's the same if I ping from a client network even if it's not that often. 

Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Request timed out.
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253
Reply from 172.22.2.1: bytes=32 time<1ms TTL=253

Can it be CoPP (Control Plane Policing) ?