N7K OTV, HSRP localization, Broadcastlimitation

[HUBERT RESCH]

Hi, does naybody have practical experience if using OTV for DCI how to achive

HSRP localisation (I assume with an acl/policy-map on the overlay-interface which blocks ARPs für common standby-IP-address as well as HSRP-Hellos)

Reducing ARP over overlay-interface (I assume proxy arp is used)

Limiting Broadcast/Multicast over the overlay (I assume this done by a policy-map on the overlay interface which limits broadcast)

Thx in Advance

Hubert

[Marcel Zehnder]

Hi Hubert

You'll find a sample configuration for FHRP in the OTV Design Guide:

http://www.cisco.com/en/US/partner/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI_1.html#wp1220161

Regarding ARP: This is optimezed with the use of ARP Neighbor-Discovery (ND) cache within OTV - This feature is also explained in the guide linked above.

HTH

Marcel

[HUBERT RESCH]

Hi Marcel,

thx very useful link.

any idea about Bcast-limitation, seem is not supported at the moment. I think the only way would be to configure storm-control on internl interface, with the disadvantage that the is no way to do it per VLAN.

KR

Hubert

[Marcel Zehnder]

hello hubert

yes I agree with you. I seems like we have to deal with it :-)