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How to determine the memory of the Supervisor and the MSFC in Catalyst 6500/6000 Series Switches running Hybrid and Native IOS mode


For Catalyst 6500/6000 Series Switches that run in Hybrid mode, the DRAM must be calculated separately for the Supervisor and Multilayer Switch Feature Card (MSFC).

Issue the show version command to get this output from the Supervisor module:

Console>show version

WS-C6009 Software, Version NmpSW: 6.2(0.11)KEY

Copyright (c) 1995-2000 by Cisco Systems

NMP S/W compiled on Oct  5 2000, 01:18:33

!--- Output suppressed.

       DRAM                    FLASH                   NVRAM

Module Total   Used    Free    Total   Used    Free    Total Used  Free
------ ------- ------- ------- ------- ------- ------- ----- ----- -----

1       65408K  45402K  20006K  16384K   8683K   7701K  512K  253K  259K

Uptime is 1 day, 19 hours, 54 minutes 

Console> (enable) 

The Supervisor module has 64 MB (65408 KB) of DRAM present.

In order to switch the console connection physically to the MSFC on the active Supervisor Engine, use the switch console [Module Number] command.

In order to switch back to the Supervisor prompt in this mode, hold down the Ctrl key and press c three times. The exit or logout command does not work when the switch console command has been used to gain access to another module.

If only one MSFC is installed, the module number does not need to be specified. For instance, only the switch console command can be used.

Now, issue the show version command from the MSFC card:

MSFC#show version

Cisco Internetwork Operating System Software
IOS (tm) MSFC Software (C6MSFC-JSV-M),

!--- Output suppressed.

cisco Cat6k-MSFC (R5000) processor with 57344K/8192K bytes of memory.

!--- Output suppressed.

The MSFC card has a DRAM of 64 MB (57344 KB + 8192 KB).

For Catalyst 6500/6000 Series Switches that run in Native IOS mode, the show version command displays the combined DRAM memory from the Supervisor and MSFC.

Router#show version

Cisco Internetwork Operating System Software

!--- Output suppressed.

System image file is "sup-bootflash:c6sup22-jsv-mz"

cisco Catalyst 6000 (R7000) processor with 112640K/18432K bytes of memory.

!--- Output suppressed.

The combined DRAM memory present in the Catalyst 6500 Switch is 128 MB (112640 KB + 18432 KB).