Extended subnets

摘要

There is provided a router for use in a datacenter, the router including a frame receiving module operative to receive a traffic frame and a frame forwarding module operative to forward the traffic frame to a second router in a second datacenter if a Destination Media Access Control (DMAC) address included in the traffic frame is different from all of the following:
a Burned in Address of the router;a Burned in Address of at least one server associated with the router;a Media Access Control (MAC) address of one of a Hot Standby Routing Protocol (HSRP) group and a Virtual Router Redundancy Protocol (VRRP) group of the router; anda MAC address of one of a HSRP group and a VRRP group of a subnet hosted by the router.

主权项

1. A router for use in a first datacenter, comprising:
a frame receiving module configured to receive a traffic frame comprising a Destination Media Access Control (DMAC) address; and a frame forwarding module configured to:
compare the DMAC address to a first Burned in Address of the router and determine that the DMAC address is different from the first Burned in Address of the router;compare the DMAC address to one or more second Burned in Addresses of servers associated with the router and determine that the DMAC address is different from one or more second Burned in Addresses of servers associated with the router;compare the DMAC address to a first MAC address of a Hot Standby Routing Protocol (HSRP) group or a Virtual Router Redundancy Protocol (VRRP) group of the router and determine that the DMAC address is different from the first MAC address of a Hot Standby Routing Protocol (HSRP) group or a Virtual Router Redundancy Protocol (VRRP) group of the router;compare the DMAC address to a second MAC address of an HSRP group or a VRRP group of a subnet hosted by the router and determine that the DMAC address is different from the second MAC address of an HSRP group or a VRRP group of a subnet hosted by the router; andforward the traffic frame to a second router in a second datacenter in response to comparing the DMAC to the first Burned in Address, the one or more second Burned in Addresses, and the first and second MAC addresses and determining that the DMAC is different from the first Burned in Address, one or more second Burned in Addresses, and the first and second MAC addresses.