Cisco MDS-9124 Troubleshooting Guide - Page 139
Module, Physical Ports, Port Indexes Allocated, Example 5-1, Borrowing Port Indexes from Another Slot
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Chapter 5 Troubleshooting Mixed Generation Hardware Overview Send documentation comments to [email protected] Table 5-6 Port Index Allocation (continued) Module Physical Ports Port Indexes Allocated 12-port 4-Gbps Fibre Channel switching module 12 12 4-port 10-Gbps Fibre Channel switching module 4 4 16-port 2-Gbps Fibre Channel module 16 161 32-port 2-Gbps Fibre Channel module 32 321 8-port Gigabit Ethernet IP Storage services module 8 321 4-port Gigabit Ethernet IP Storage services module 4 32-port 2-Gbps Fibre Channel Storage Services Module 32 (SSM). 14-port Fibre Channel/2-port Gigabit Ethernet 162 Multiprotocol Services (MPS-14/2) module 32 (with Supervisor-1) 16 (with Supervisor-2) 321 32 (with Supervisor-1) 22 (with Supervisor-2) 1. All Generation 1 modules reserve port indexes on fixed boundaries with Supervisor-1. See Table 5-7. 2. Fourteen Fibre Channel ports and two Gigabit Ethernet ports. Using any combination of modules that include a Generation 1 module or a Supervisor-1 module limits the port index availability to 252 on all Cisco MDS 9500 Series directors. Generation 1 modules also require contiguous port indexes where the system assigns a block of port index numbers contiguously starting from the first port index reserved for the slot that the module is inserted in (See Table 5-7). This means that while there may be enough port indexes available for a Generation 1 module, the module may not boot up because the available port indexes are not in a contiguous range or the contiguous block does not start at the first port index for a given slot. Example 5-1 shows a case with a Supervisor-1 module, where a 48-port Generation 2 module borrowed port indexes from the first slot. Slot 1 still has 16 port indexes available, but the full 32 indexes are no longer available (28-31 are used by the module in slot 4). This means that no Generation 1 module except a 16-port Fibre Channel switching module can be inserted into slot 1 because some of the port indexes for the slot are already in use. Example 5-1 Borrowing Port Indexes from Another Slot switch#show port index-allocation Module index distribution: Slot | Allowed | Alloted indices info | | range* | Total | Index values | 1 | 0- 31| - | - | 2 | 32- 63| 32 | 32-63 | 3 | 64- 95| 48 | 64-95,224-239 | 4 | 96- 127| 48 | 96-127, 240-252, 28-31 | 7 | 128- 159| 32 | 128-159 | 8 | 160- 191| 32 | 160-191 | 9 | 192- 223| 32 | 192-223 | SU | 253-255 | 3 | 253-255 | *Allowed range applicable only for Generation-1 modules OL-9285-05 Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x 5-5