Fibre Channel Addressing and Routing Routing and FSPF
FSPF Functions
Link Descriptor
Owning Domain_ID: 01 Out Port Index: 05 Domain_ID of Neighbor: 3F Neighbor Port Index: 02 Link Cost: nnnn
Domain_ID=01 Port 5 Port 1
Link Descriptor
Owning Domain_ID: 3F Out Port Index: 02 Domain_ID of Neighbor: 01 Neighbor Port Index: 05 Link Cost: nnnn
Domain_ID=3F
Link Descriptor
Owning Domain_ID: 01 Out Port Index: 01 Domain_ID of Neighbor: 05 Neighbor Port Index: 03 Link Cost: nnnn
Link Descriptor
Owning Domain_ID: 05 Out Port Index: 03 Domain_ID of Neighbor: 01 Neighbor Port Index: 01 Link Cost: nnnn
Port 2 Domain_ID=05
Port 3
Each LSR contains a record header and one or more Link Descriptors (LDs): • Each LD describes a single FC ISL. • Each ISL is identified by the Domain_ID and output port index of the owning switch, and by the Domain_ID and port index of the neighbor switch.
• An ISL provides two paths (one in each direction); each path is described by a unique LD.