We have about 20 servers with dual NICs, we want to run NIC teaming with port channel enable, so we need to create 20 port-channel interfaces. I want to know will this cause a performance issue in a 6509 switch with sup-720?
you should be fine:
>> With Release 12.2(18)SXE and later releases, the group_number can be 1 through 256, up to a maximum of 128 port-channel interfaces. With releases earlier than Release 12.2(18)SXE, the group_number can be 1 through 256, up to a maximum of 64 port-channel interfaces.
Hope to help