HP A7533A HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, Dece - Page 374

Use the trunkShow command to display the following information about ISL Trunking groups: 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. 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 0 -> 0 10:00:00:60:69:04:10:83 2: 4 -> 4 10:00:00:60:69:04:01:94 5 -> 5 10:00:00:60:69:04:01:94 7 -> 7 10:00:00:60:69:04:01:94 6 -> 6 10:00:00:60:69:04:01:94 3:14 -> 14 10:00:00:60:69:04:10:83 15 -> 15 10:00:00:60:69:04:10:83 deskew 16 Master deskew 15 deskew 16 Master deskew 15 deskew 17 deskew 16 deskew 16 Master 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. Table 79 Trunking support for SAN Switch 4/32, 4/32B and 4/64 SAN Switch (Condor ASIC) Mode LE LD LD LD Distance 10 km 200 km 250 km 500 km Number of 2 Gbps ports 32 (four 8-port trunks) 3 (one 3-port trunk) 3 (one 3-port trunk) 0 Number of 4 Gbps ports 32 (four 8-port trunks) 0 0 0 374 Administering ISL trunking