To configure Port Channel

@Switch:

interface Port-channel 1
ip address 10.10.0.2 255.255.255.0; add an IP of the same network to the Port-channel 1 in the other switch interface
duplex full
speed 10000

exit
interface GbE0/1
no ip address
duplex full
speed 10000
channel-group 1 mode on {on|auto|desirable|active|passive}

1) shut the interfaces which you want to include in port-channel
2) apply port-channel group under interfaces
3) configure the port-channel setting
4) enable the interface range.
 
With this all interface will get the configuration applied on the port-channel. A typical configuration is shown below.
 
conf terminal
interface range fas 0/1-10
shut
channel-group 1 mode on
!
int port-channel 1
switchport
switchport access vlan 111
switchport mode access
!
interface range fas 0/1-10
no shut
!