Hi
My Predecessors brought 2 CISCO 3750 switches and implemented LACP on these core switches. Due to looping in the network the Fibre uplink ports GigabitEthernet1/1/3 and GigabitEthernet2/1/3 are down (I think these uplink ports are mirrored in the LACP concept)
Please see below from the configuration.
I logged into the core switch and went to this particular interface GigabitEthernet1/1/3 and I gave the following command and still the port is in the down state after I gave no shutdown command. Do I need to give the same no shutdown command at interface GigabitEthernet2/1/3 as well ?
Switch-Core1(config) interface GigabitEthernet1/1/3
Switch-Core1(config-if)#no shutdown
Switch-Core1(config-if)#
Please see below After no shutdown command given still these 2 Gigabit fibre uplink ports are down.
GigabitEthernet1/0/20 unassigned YES unset up up
GigabitEthernet1/0/21 unassigned YES unset down down
GigabitEthernet1/0/22 unassigned YES unset down down
GigabitEthernet1/0/23 unassigned YES unset down down
GigabitEthernet1/0/24 unassigned YES unset up up
GigabitEthernet1/1/1 unassigned YES unset up up
GigabitEthernet1/1/2 unassigned YES unset up up
GigabitEthernet1/1/3 unassigned YES unset down down
GigabitEthernet1/1/4 unassigned YES unset up up
Te1/1/1 unassigned YES unset down down
Te1/1/2 unassigned YES unset down down
GigabitEthernet2/0/1 unassigned YES unset up up
GigabitEthernet2/0/2 unassigned YES unset up up
GigabitEthernet2/0/3 unassigned YES unset up up
GigabitEthernet2/0/4 unassigned YES unset down down
GigabitEthernet2/0/5 unassigned YES unset up up
GigabitEthernet2/0/6 unassigned YES unset down down
GigabitEthernet2/0/7 unassigned YES unset down down
GigabitEthernet2/0/8 unassigned YES unset up up
GigabitEthernet2/0/9 unassigned YES unset up up
GigabitEthernet2/0/10 unassigned YES unset down down
GigabitEthernet2/0/11 unassigned YES unset down down
GigabitEthernet2/0/12 unassigned YES unset down down
GigabitEthernet2/0/13 unassigned YES unset down down
GigabitEthernet2/0/14 unassigned YES unset up up
GigabitEthernet2/0/15 unassigned YES unset up up
GigabitEthernet2/0/16 unassigned YES unset up up
GigabitEthernet2/0/17 unassigned YES unset up up
GigabitEthernet2/0/18 unassigned YES unset up up
GigabitEthernet2/0/19 unassigned YES unset down down
GigabitEthernet2/0/20 unassigned YES unset up up
GigabitEthernet2/0/21 unassigned YES unset down down
GigabitEthernet2/0/22 unassigned YES unset up up
GigabitEthernet2/0/23 unassigned YES unset down down
GigabitEthernet2/0/24 unassigned YES unset up up
GigabitEthernet2/1/1 unassigned YES unset up up
GigabitEthernet2/1/2 unassigned YES unset up up
GigabitEthernet2/1/3 unassigned YES unset down down
GigabitEthernet2/1/4 unassigned YES unset up up
Te2/1/1 unassigned YES unset down down
Te2/1/2 unassigned YES unset down down
Port-channel1 unassigned YES unset down down
Port-channel2 unassigned YES unset down down
Please let me know if I am doing something wrong .Please post me some tutorial to sort this.
