HSRP through EX8208
ange last edited by
I have a little question about compatibility between Cisco and Juniper equipment.
I have two Cisco 6500 configured with HSRP and between them I have two Juniper EX8208 that only do L2 transport.
Here is a little scheme :
Cisco 6500-1 Cisco 6500-2
On the 6500s:
1 port configured in access mode on a vlan X
1 SVI for the vlan X and HSRP configuration
On the EX8208:
ports linked to the Cisco are in access mode on the vlan X
port linked to the other EX is configured in access mode on the vlan X
With this configuration, both 6500 are in active mode for HSRP because they don’t receive the hello packets.
I sniffed the traffic and saw that the hello packets are not transmitted on the link between the two EX.
When I change the SVI configuration for VRRP, everything is ok.
Do you have an idea? :?
Also try turning off IGMP snooping and see if that helps.
kshah last edited by
You need to make sure no ports in this configuration are in Spanning tree blocking mode. HSRP are just layer 2 UDP multicast hello sent every 3 sec to 188.8.131.52. Where as VRRP hello is a IP packet sent every 1 sec to 184.108.40.206.
Which port do you span on EX 8200 and found no HSRP hello packet are forwarded.