HP AE370A HP StorageWorks Fabric OS 6.x administrator guide (5697-0015, May 20 - Page 381
Troubleshooting trunking problems
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Trunking distances Enhanced trunking support for switches with Condor ASICs is summarized in Table 83. Table 83 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) L0.5 25 km 32 (four 8-port trunks) 15 (one 8-port trunk) L1 50 km 15 (one 2-port trunk) 7 (one 7-port trunk) L2 100 km 7 (one 7-port trunk) 3 (one 3-port trunk) LD 200 km 3 (one 3-port trunk) 0 LD 250 km 3 (one 3-port trunk) 0 LD 500 km 0 0 Enhanced trunking support for the FC4-48 port blade in the 4/256 SAN Director is summarized in Table 84. Table 84 Trunking support for 4/256 SAN Director and DC Directors with supported blades (Condor and Condor2 ASIC) Mode Distance Number of 2 Gbps ports Number of 4 or 8 Gbps ports LE 10 km 48 (six 8-port trunks) 48 (six 8-port trunks) L0.5 25 km 48 (six 8-port trunks) 22 (one 8-port trunk and one 3-port trunk per Condor) L1 50 km 22 (one 8-port trunk and one 3-port 10 (one 5-port trunk per Condor) trunk per Condor) L2 100 km 10 (one 5-port trunk per Condor) 4 (one 2-port trunk per Condor) LD 200 km 4 (one 2-port trunk per Condor) 0 LD 250 km 4 (one 2-port trunk per Condor) 0 LD 500 km 0 0 Troubleshooting trunking problems If you have difficulty with trunking, try the solutions in this section. Listing link characteristics If a link that is part of an ISL Trunk fails, use the trunkDebug command to troubleshoot the problem, as shown in the following procedure. 1. Connect to the switch and log in as admin. 2. Enter the following command: trunkDebug port, port port Specifies the number of a port in an ISL Trunking group. The trunkDebug command displays the possible reason that two ports cannot be trunked. Possible reasons are: • The switch does not support trunking. • A trunking license is required. • Trunking is not supported in switch interoperability mode. Fabric OS 6.x administrator guide 381