The configuation of Tunable XFP in Cisco 7600

A. When interface is in shutdown mode (when the switch is starting up):

 

B. Router # enable 
C. Router # configure terminal
D. Router(config)# interface TenGigabitEthernet 4/0/0
E. Router(config-if)#itu channel 28
F. Router(config-if)#no shutdown
G. Router#end

B. When interface in no shutdown(normal) mode:

 

W. Router # enable
X. Router # configure terminal
Y. Router(config)# interface TenGigabitEthernet 4/0/0
Z. Router(config-if)#shutdown
AA. Router(config-if)#itu channel 29
BB. Router(config-if)#no shutdown
CC. Router#end

Please check the attached guide for detailed information on configuring tunable XFP in Cisco 7600 platform.