Trunking Over Distance - HP A7533A - Brocade 4Gb SAN Switch Base User Manual

3. Issue the portCfgLongDistance command, using the following syntax:
portcfglongdistance [slotnumber/]portnumber [distance_level]
[vc_translation_link_init] [desired_distance]
where:
slotnumber
portnumber
distance_level
vc_translation_l
ink_init
desired_distance Is required for a port configured for LD mode. Specify the desired
Repeat step 3
4.
Both the local and remote extended ISL ports must be configured to the same distance level. When the
connection is initiated, the fabric is reconfigured.
The following example configures slot 1, port 1 for the LD link distance mode, enables the extended link
initialization sequence, and sets the desired distance to 50 kilometers:
switch:admin> portcfglongdistance 1/1 LD 1 50
switch:admin>

Trunking over distance

See "Trunking over extended
166 Administering extended fabrics
Specifies the slot number for Core Switch 2/64, SAN Director
2/128, and 4/256 SAN Director. This option is not applicable
to fixed-port switches. The slot number must be followed by a
slash ( / ) and the port number.
Specifies the port number.
Specifies the ISL mode to be set on the port (see
page 164).
Is an extended link initialization sequence, which is an enhanced
link reset protocol, and prevents excessive resetting of ports.
By default this option is set to 1 (enabled).
To prevent fabric segmentation, this option must be set to 0
(disabled) when connecting to switches running Fabric OS
versions earlier than 3.0.2c or 4.0.2.
It must be set to 1 (enabled) when configuring a trunk over
extended fabrics.
distance, in kilometers, for the link. The specified value is the
upper limit for calculating buffer availability for the port. If the
measured distance is more than the specified
desired_distance, the port is allocated the number of buffers
required by the specified desired distance. (Fabric OS versions
earlier than 4.4.0 do not support this parameter.)
Note that for a 4/256 SAN Director with FC4-16 or FC4-32 port
blades, ports are shown as buffer-limited.
for the remote extended ISL port.
fabrics" on page 173.
Table 30 on