The changes to the switching mode are done automatically, depending on the hardware installed. No specific configuration is necessary on the SFM for typical operation. The current switching mode of the switch fabric module can be monitored through the Catalyst OS
Example 1: Fabric-Enabled System
The following output is from a configuration with dual supervisor engines, one SFM, and a
Module Num Fab Chan Fab Chan Switch Mode Channel Status
1 | 1 | 0, 0 | compact | ok |
2 | 1 | 0, 1 | compact | ok |
3 | 1 | 0, 2 | compact | ok |
5 | 18 | 0, 0 | n/a | ok |
5 | 18 | 1, 1 | n/a | ok |
5 | 18 | 2, 2 | n/a | ok |
5 | 18 | 3, 3 | n/a | unknown |
5 | 18 | 4, 4 | n/a | unknown |
5 | 18 | 5, 5 | n/a | unknown |
5 | 18 | 6, 6 | n/a | unknown |
5 | 18 | 7, 7 | n/a | unknown |
5 | 18 | 8, 8 | n/a | unknown |
5 | 18 | 9, 9 | n/a | unknown |
5 | 18 | 10, 10 n/a | unknown | |
5 | 18 | 11, 11 n/a | unknown | |
5 | 18 | 12, 12 n/a | unknown | |
5 | 18 | 13, 13 n/a | unknown | |
5 | 18 | 14, 14 n/a | unknown | |
5 | 18 | 15, 15 n/a | unknown | |
5 | 18 | 16, 16 n/a | unknown | |
5 | 18 | 17, 17 n/a | unknown | |
15 | 0 n/a | n/a | n/a | |
16 | 0 n/a | n/a | n/a | |
CLI output description for show fabric channel switchmode:
Num Fab Chan— The number of fabric channels that the module is associated with.
Fab Chan— The first number is the fabric channel number that the module is associated with. The second number is the fabric channel number that the SFM is associated with.
Switch mode— Possible output is “flow through,” “truncated,” “compact.” Switch mode applies only to line cards with fabric and bus connections.
Channel status— Possible output is “ok,” “sync error,” “CRC error,” “heartbeat error,” “buffer error,” “timeout error,” or “unknown.” Channel status applies only to line cards with fabric and bus connections.
Cisco Systems, Inc.
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