Cisco WS-SUP720= User Guide - Page 4

Configuring and Monitoring the Switch Fabric Functionality Chapter 4 Configuring a Supervisor Engine 720 Table 4-1 Switch Fabric Functionality Switching Modes Modules Between fabric-enabled modules (when no nonfabric-enabled modules are installed) Between fabric-enabled modules (when nonfabric-enabled modules are also installed) Switching Modes Compact1 Truncated2 Between fabric-enabled and nonfabric-enabled modules Bus Between non-fabric-enabled modules Bus 1. In show commands, displayed as dcef mode for fabric-enabled modules with DFC3 installed; displayed as fabric mode for other fabric-enabled modules. 2. Displayed as fabric mode in show commands. Configuring the Switch Fabric Functionality To configure the switching mode, perform this task: Command Router(config)# [no] fabric switching-mode allow {bus-mode | {truncated [{threshold [number]}]} Purpose Configures the switching mode. When configuring the switching mode, note the following information: • To allow use of nonfabric-enabled modules or to allow fabric-enabled modules to use bus mode, enter the fabric switching-mode allow bus-mode command. • To prevent use of nonfabric-enabled modules or to prevent fabric-enabled modules from using bus mode, enter the no fabric switching-mode allow bus-mode command. Caution When you enter the no fabric switching-mode allow bus-mode command, power is removed from any nonfabric-enabled modules installed in the switch. • To allow fabric-enabled modules to use truncated mode, enter the fabric switching-mode allow truncated command. • To prevent fabric-enabled modules from using truncated mode, enter the no fabric switching-mode allow truncated command. • To configure how many fabric-enabled modules must be installed before they use truncated mode instead of bus mode, enter the fabric switching-mode allow truncated threshold number command. • To return to the default truncated-mode threshold, enter the no fabric switching-mode allow truncated threshold command. Monitoring the Switch Fabric Functionality The switch fabric functionality supports a number of show commands for monitoring purposes. A fully automated startup sequence brings the module online and runs the connectivity diagnostics on the ports. Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide, Release 12.2SXF 4-4 OL-3999-08