VRRP Config Not Working

I’m working on a VRRP lab - it’s a real world scenario. Topology show in following image.

image

I have existing 3750 switch (stack).

We are adding 2 x catalyst 9500 switches to the network. Due to license limitation I have to opt for VRRP for redundancy.
9500 switches have connectivity via SFPs only, so existing connections from 3750 can’t be moved over to new switches. As a result, I have to leave the 3750 there which connects to the firewall for internet.

I’m trying to simulate this scenario. CSW1 and CSW2 are connected to 3750 via etherchannels on their interfaces E2/0-1 9Po1).
And CSW1 and CSW2 are connected via etherchannel on their interfaces E2/2-3 (Po2).

  • Etherchannels successfully formed.
  • Able to access internet
  • configured VRRP on SVI Vlan10 (IP: 10.100.10.254)

Result: I can’t ping the VRRP virtual IP, but I can ping Vlan10 SVIs on both CSWs. I can reach internet from both CSWs (Note: Internet connectivity is via 3750)

Config below. Please help me find out why I can’t ping the gateway.

CSW1:

interface Vlan10
 description LAB-MGMT
 ip address 10.100.10.252 255.255.255.0
 no ip route-cache
 vrrp 10 ip 10.100.10.254
 vrrp 10 priority 254
end

Vlan10 - Group 10
  State is Master
  Virtual IP address is 10.100.10.254
  Virtual MAC address is 0000.5e00.010a
  Advertisement interval is 1.000 sec
  Preemption enabled
  Priority is 254
  Master Router is 10.100.10.252 (local), priority is 254
  Master Advertisement interval is 1.000 sec
  Master Down interval is 3.007 sec

CSW2

interface Vlan10
 ip address 10.100.10.253 255.255.255.0
 vrrp 10 ip 10.100.10.254
end

Vlan10 - Group 10
  State is Backup
  Virtual IP address is 10.100.10.254
  Virtual MAC address is 0000.5e00.010a
  Advertisement interval is 1.000 sec
  Preemption enabled
  Priority is 100
  Master Router is 10.100.10.252, priority is 254
  Master Advertisement interval is 1.000 sec
  Master Down interval is 3.609 sec (expires in 3.540 sec)

3750

interface Vlan10
 ip address 10.100.10.250 255.255.255.0
end

SX-RIVCORE-SWH3750X#show run | i default-gateway
ip default-gateway 10.100.10.254

SX-RIVCORE-SWH3750X#sh ip int br | e unass
Interface              IP-Address      OK? Method    Status                Protocol
Vlan10                 10.100.10.250   YES manual  up                      up

SX-RIVCORE-SWH3750X#ping 10.100.10.252
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.100.10.252, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/5/16 ms
SX-RIVCORE-SWH3750X#ping 10.100.10.253
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.100.10.253, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 1/1/3 ms
SX-RIVCORE-SWH3750X#ping 10.100.10.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.100.10.254, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
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