Shige,
No, you dont have to reboot the module or reseat to take this affect.
ort Performance Modes
The 6904 module has two performance modes: oversubscription mode and performance mode. Note that these modes affect portgroups rather than an individual port. By default, the module operates in oversubscription mode since a backplane capacity of 80 GB per slot feeds 4 x 40 Gigabit Ethernet or 16 x 10 Gigabit Ethernet ports, resulting in a 2:1 oversubscription ratio. The default port performance mode can be identified using a show command:
6513E.S2T.SA.DUT2#sh hw-module slot 3 oversubscription
port-group oversubscription-mode
1 enabled
2 enabled
Performance mode can be enabled by issuing a configuration command that will result in shutting down certain ports in the selected portgroup so as to make the port-to-fabric bandwidth come down from 2:1 to 1:1. In 40 Gigabit Ethernet performance mode, ports 1 and 3 will be active and the remaining ports will be shut down. In 10 Gigabit Ethernet performance mode, ports 5, 6, 7, 8 and 13, 14, 15, 16 will be active, and the remaining ports will be shut down.
6513E.S2T.SA.DUT2(config)#no hw-module slot 3 oversubscription port-group 1
WARNING: Switch to TRANSPARENT mode on module 3 port-group 1.
6513E.S2T.SA.DUT2(config)#
000144: *Dec 19 04:20:11.606: %C6K_PLATFORM-6-ESTELLE_NON_OVERSUBSCRIPTION_TEN_GIG: Ports 9, 10, 11, 12, of slot 3 disabled to prevent module bandwidth oversubscription.
6513E.S2T.SA.DUT2(config)#
HTH
regards
Inayath
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