Hi Cisco Expert,
I have seen on many Cisco Campus design document the Layer 3 Access to the Distribution Model as shown in figure 6 in the following link
http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/HA_recovery_DG/campusRecovery.html
This model indicated that a layer 3 link is used between the 2 distribution switches as opposed as a layer 2 trunk for the Distributed Vlans on Access switch.
I am familiar in creating HSRP under vlan interface but I would like to know how we can configure HSRP or VRRP under this layer 3 link. Any configuration example would be greatly appreciated.
Secondly, I would like to know if it is a good practice for the core routers to only send the default route to the distribution switches and for the distribution switches to send a summary route of the access subnet.
Finally, any explanation on when to used a Distributed VLANs on Access Switches vs Layer 3 Access to the distribution would really be helpful.
Thanks for your help
Stephane
