Cisco MDS-9124 Troubleshooting Guide - Page 140
Supervisor, Module, Port Index Requirements, purge module
View all Cisco MDS-9124 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 140 highlights
Overview Chapter 5 Troubleshooting Mixed Generation Hardware Send documentation comments to [email protected] Using any combination of modules that include a Generation 1 module and a Supervisor-2 module limits the port index availability to 252 on all Cisco MDS 9500 Series directors. The Generation 1 modules can use any contiguous block of port indexes that start on the first port index reserved for any slot in the range 0-252. (See Table 5-7). Using any combination of only Generation 2 with a Supervisor-2 module allows a maximum of 528 (with an architectural limit of 1020) port indexes on all Cisco MDS 9500 Series directors. Generation 2 modules do not need contiguous port indexes. Generation 2 modules use the available indexes in the slot that it is installed and then borrow available indexes from the supervisors. If the module requires more indexes, it starts borrowing available indexes from slot 1 of the chassis until it has the number of port indexes necessary. Note Use the purge module CLI command to free up reserved port indexes after you remove a module. Table 5-7 Port Index Requirements Supervisor Module Port Index Requirements Supervisor-1 Generation 1 Indexes must: • Be contiguous. • In the range assigned to the given slot. • Start with the lowest value assigned to that slot.12 • Have no port indexes above 256 allocated to any other operational modules. Maximum 252 assignable port indexes available. Generation 2 Indexes can be any available number in the range 0-252. Supervisor-2 Generation 1 Indexes must: • Be contiguous. • Start with the lowest value assigned to any slot. 2. • Have no port indexes above 256 allocated to any other operational modules. Maximum 252 assignable port indexes available. Generation 2 Indexes can be any available number in the range 0-1020 if all modules are Generation 2 modules. Otherwise, indexes can be any available number in the range 0-252. 1. See the Allowed Ranges column in Example 5-1 for the port indexes assigned to each slot for Generation 1 modules. 2. 16-port Fibre Channel switching modules can use the upper 16 indexes within a slot (for example, 16-31). Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x 5-6 OL-9285-05