Fabric OS 6.2 administrator guide 433
5.
Repeat
step 4
for the remote extended ISL port. Both the local and remote extended ISL ports must be
configured to the same distance level. When the connection is initiated, the fabric will reconfigure.
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
distance_level
One of the following (the numerical value representing each distance_level
is shown in parentheses):
•
L0 (0) Specify L0 to configure the port to be a regular (default)
switch port.
•
LE (3) Specify LE mode for distances up to 10 km.
•
LD (5) Specify LD for automatic long-distance configuration. The
buffer credits for the given E_Port are automatically configured,
based on the actual link distance measured during E_Port
initialization versus the user-desired distance.
•
LS (6) Specify LS mode to configure a long-distance link with a
buffer allocation based on a fixed desired distance value.
vc_translation_link_init
Enables the long-distance link initialization sequence. This extended link
initialization sequence is an enhanced link reset protocol, and avoids
excessive resetting of ports.
By default, this option is set to 1 (enabled). It must be set to 1 (enabled)
when configuring a trunk over extended fabrics. It must be set to 1 for a
long-distance link not configured for ISL R_RDY mode; otherwise, it must be
reset to 0.
desired_distance
For an LD-mode link,
desired_distance
is a threshold limit for link distance
to ensure buffer availability for other ports in the same port group. If the
measured distance exceeds
desired_distance
,
desired_distance
is used;
otherwise, the measured distance is used.
For an LS-mode link,
desired_distance
is used to calculate the buffers
required for the port.
Summary of Contents for A7533A - Brocade 4Gb SAN Switch Base
Page 1: ...HP StorageWorks Fabric OS 6 2 administrator guide Part number 5697 0016 Edition May 2009 ...
Page 24: ...24 ...
Page 99: ...Fabric OS 6 2 administrator guide 99 ...
Page 100: ...100 Managing user accounts ...
Page 118: ...116 Configuring standard security features ...
Page 164: ...162 Configuring advanced security features ...
Page 234: ...232 Installing and maintaining firmware ...
Page 268: ...266 Administering advanced zoning ...
Page 284: ...282 Configuring Enterprise class platforms ...
Page 292: ...290 Routing traffic ...
Page 294: ...292 Interoperability for merged SANs ...
Page 302: ...300 Configuring the Distributed Management Server ...
Page 334: ...332 iSCSI gateway service ...
Page 340: ...338 Administering NPIV ...
Page 407: ...Fabric OS 6 2 administrator guide 405 ...
Page 408: ...406 Using the FC FC routing service ...
Page 438: ...434 Administering extended fabrics ...
Page 460: ...456 Administering ISL trunking ...
Page 516: ...512 FICON fabrics ...
Page 526: ...522 Configuring and monitoring FICON Extension Services ...
Page 540: ...536 Configuring the PID format ...
Page 544: ...540 Understanding legacy password behavior ...
Page 546: ...542 Mixed fabric configurations for non merge SANs ...
Page 550: ...546 Migrating from an MP Router to a 400 MP Router ...
Page 558: ...554 Inband Management ...
Page 572: ...568 ...