VIRTUAL LINK AGGREGATIONS ACROSS MULTIPLE FABRIC SWITCHES

摘要

One embodiment of the present invention provides a switch. The switch is configurable to be a member of a first fabric switch. The switch includes a link aggregation module. During operation, the link aggregation module marks an ingress-switch field of a frame with a virtual switch identifier. This virtual switch identifier is associated with the switch and a second switch, which is a member of a second fabric switch, and is from a range of identifier associated with the first fabric switch and the second fabric switch. Each of the first fabric switch and the second fabric switch is operable to accommodate a plurality of switches and operate as a single switch.

主权项

1. A switch, comprising:
a fabric switch module configured to maintain a membership in a first network of interconnected switches, wherein the first network of interconnected switches is controlled as a single logical switch; and a link aggregation module configured to:
operate a first trunked link of the switch as a virtual link aggregation group, wherein a second network of interconnected switches is reachable via the virtual link aggregation group, and wherein the second network of interconnected switches is controlled as a single logical switch; andmaintain a mapping between the switch and the virtual link aggregation group.