Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 205)

Configuring a Fibre Channel port for long-distance operation
To configure a Fibre Channel port for long-distance operation, follow these steps:
1. In privileged EXEC mode, enter the configure terminal command to enter the global configuration
mode.
2. Enter the interface FibreChannel rbridge-id/slot/port command for the Fibre Channel port you want
to configure.
A configuration submode prompt appears.
3. For 8 Gbps only, enter the fill-word command to set the fill word to the same value as for the remote
port.
4. Enter the long-distance command to set the long distance mode.
5. For LD and LS modes only, enter the desire-distance command to set the desired distance.
6. For 8 Gbps only, enter the vc-link-init command to set the fill word for the long distance link to the
same value as the fill word for the remote port.
7. On the Fabric OS end of the ISL, configure the Fibre Channel port with the same values set in step 3
and step 5 using the Fabric OS portCfgFillWord and portCfgLongDistance commands.
The following example sets the long distance mode to LS for a distance of 100 km.
switch# configure terminal
Entering configuration mode terminal
switch(config)# interface FibreChannel 8/0/1
switch(config-FibreChannel-8/0/1)# fill-word arbff-arbff
switch(config-FibreChannel-8/0/1)# long-distance ls
switch(config-FibreChannel-8/0/1)# desire-distance 100
switch(config-FibreChannel-8/0/1)# vc-link-init arb
switch(config-FibreChannel-8/0/1)# do show running-config interface FibreChannel
8/0/1
interface FibreChannel 8/0/1
fill-word arbff-arbff
long-distance ls
vc-link-init arbff
desire-distance 100
no isl-r_rdy-mode
no shutdown
Configuring a Fibre Channel port for trunking
A link can be configured to be part of a trunk group. Two or more links in a port group form a trunk
group when they are configured for the same speed, the same distance level, and their link distances
are nearly equal.
NOTE
Port trunking is not supported in Access Gateway Mode.
1. In privileged EXEC mode, enter the configure terminal command to enter global configuration
mode.
2. Enter the interface FibreChannel rbridge-id/slot/port command for the desired port.
A configuration submode prompt appears.
3. Enter the trunk-enable command.
The following example configures the link attached to port 4 on RBridge 8 to be part of a trunk group.
switch# configure terminal
Entering configuration mode terminal
switch(config)# rbridge-id 8
switch(config-rbridge-id-8)# interface FibreChannel 8/0/4
switch(config-FibreChannel-8/0/4)# trunk-enable
Configuring a Fibre Channel port for long-distance operation
Network OS Administrator’s Guide 205
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