HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, December 2009)

374 Administering ISL trunking
Use the trunkShow command to display the following information about ISL Trunking groups:
To display trunking information:
1. Connect to the switch and log in as admin.
2. Issue the trunkShow command:
This example shows three trunking groups (1, 2, and 3); ports 1, 4, and 14 are masters:
switch:admin> trunkshow
1: 1 -> 1 10:00:00:60:69:04:10:83 deskew 16 Master
0 -> 0 10:00:00:60:69:04:10:83 deskew 15
2: 4 -> 4 10:00:00:60:69:04:01:94 deskew 16 Master
5 -> 5 10:00:00:60:69:04:01:94 deskew 15
7 -> 7 10:00:00:60:69:04:01:94 deskew 17
6 -> 6 10:00:00:60:69:04:01:94 deskew 16
3:14 -> 14 10:00:00:60:69:04:10:83 deskew 16 Master
15 -> 15 10:00:00:60:69:04:10:83 deskew 15
Trunking over Extended Fabrics
In addition to the criteria listed in ”Standard trunking criteria” on page 368, observe the following criteria
for trunking over Extended Fabrics:
• ISL Trunking over Extended Fabrics is supported on switches running Fabric OS 4.4.0 and later.
• Extended Fabrics and ISL Trunking licenses are required on all participating switches.
• The vc_translation_link_init parameter must be set the same on all ports in an extended fabric. When
you issue the portCfgLongDistance --vc_translation_link_init command, specify 1 to
activate long-distance link initialization sequence; specify 0 to deactivate this mode. If you run the
command without specifying a value, 1 is assigned automatically for the long-distance link in VC_RDY
flow control; otherwise, 0 is assigned. For a long-distance link not configured for ISL R_RDY mode, this
parameter must be set to 1; otherwise, it must be reset to 0.
Trunking distances
Enhanced trunking support for switches with Condor ASICs is summarized in Table 79.
Trunking Group Number Displays each trunking group on a switch. All the ports that are
part of this trunking group are displayed.
Port-to-port connections, Displays the port-to-port trunking connections.
WWN Displays the WWN of the connected port.
Domain Displays the domain IDs of the switches directly connected to the
physical ports.
Deskew The time difference, in nanoseconds divided by 10, for traffic to
travel over each ISL as compared to the shortest ISL in the group).
The system automatically sets the minimum deskew value of the
shortest ISL to 15.
Master Displays whether this trunking port connection is the master port
connection for the trunking group.
Table 79 Trunking support for SAN Switch 4/32, 4/32B and 4/64 SAN Switch (Condor ASIC)
Mode Distance Number of 2 Gbps ports Number of 4 Gbps ports
LE 10 km 32 (four 8-port trunks) 32 (four 8-port trunks)
LD 200 km 3 (one 3-port trunk) 0
LD 250 km 3 (one 3-port trunk) 0
LD 500 km 0 0