09-11-2013 12:19 AM
Max is 30Km using ER optics and 10Km for LR.
EDIT - Extract is from Network OS Administrator Guide 3.0.1 I would assume it is the same for 3.0.0. Confirmed up to 30Km for 3.0.0 as well.
Long distance ISL guidelines and restrictions
Consider the following when configuring long distance ISL:
• Long distance ISL is only supported on 10G interfaces.
• Edge ports can not be configured with DCB maps.
• Edge ports and port groups with long distance links can not use the fcoeport default command.
• A maximum of three PFCs can be supported on a long distance ISL configured platform. By default, PFC is enabled by class 3 and 7.
• All the ports on the platform are rebooted when configuring a port for long-distance.
• For 2Km, 5Km, 10Km long-distance, use Brocade-supported long range (LR) optics for direct connectivity.
• For 30Km long-distance, use Brocade-supported extended range (ER) optics for direct connectivity.
To configure a long distance ISL port, use the long-distance-isl command in interface configuration mode. Refer to the Network OS Command Reference for complete details. The following example sets port 1/0/2 to support long distance ISL up to 30Km.
switch(conf-if-te-1/0/2)# long-distance-isl 30000