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• N_Port sends a Port Login (PLOGI) to inform the Fabric Name Server of its personality and capabilities, this includes WWNN, WWPN.
• N_Port sends PLOGI to address 0xFFFFFC to register this address with the name server.
Command Description
show fc ns
switch
Display all the devices in name server database of the switch.
show fc ns
switch brief
Displays the local name server entries — brief version.
show fc ns
fabric
Display all the devices in name server database of the fabric.
show fc ns
fabric
Displays the fabric name server entries — brief version.
show fc
topology
Displays the topology information of the local switch.
The following congurations are applicable only after conguring the switch mode to fabric services using the fc switch-mode
fabric-services command. When you set Switch mode to Fabric Services, the Fibre Channel interfaces are set to shutdown and
the fcoe-map
default_full_fabric applies. Any previously congured fcoe-map is removed and you cannot remove the fcoe-map
default_full_fabric from the Fibre Channel interfaces.
Link State Database
The collection of neighbor, connected ports, and cost of all the switches in a Fabric constitutes the link-state database (LSDB).
Record Headings
Description
SwitchName WWN of a switch on the fabric.
PortOut Port number on the local switch that would be used to route a frame to the named switch.
Hops The number of links between the local switch and the named switch.
Cost The overall link cost (in time) between the local switch and the named switch. Cost is a function of hops and link
speed.
Age Seconds that this route to the switch has existed.
LinkCount Number of ISL records in links array. This value is the number of switches attached to the named switch.
To view the LSDB information on the S5000 switch, use the show fc lsdb command.
Inter Switch Link (ISL)
For each switch LSDB record in the fabric, there is a list of ISLs detailing the links between that switch and any switches directly attached
to it.
Heading
Description
NeighborID Domain ID of connected switch.
LocalPort Port number on switch that is connected to its neighbor.
RemotePort Port number on neighbor switch.
Link Cost Link Cost
Fabric Services 311