The Packet Tracer topology and the Port Channel and Device tables provide details about the physical ports and their EtherChannel assignments. Step 1: Examine port channel assignments. They should be reassigned to port channel group 5. In this case, ports F0/21 and F0/22 on S4 have been assigned to port channel group 4. It is a possible that errors can occur when assigning physical ports to port channels. Port channel interface assignment can be confusing. S2(config- if)# switchport mode trunk Part 2: Identify and Correct Port Channel Assignment Issues Correct any EtherChannel ports that are not configured as trunks.Īnswers Note : Packet Tracer versions 7.2.1 and earlier do not grade the switchport mode trunk command on port-channel interfaces.S2(config-if- range)# switchport mode trunk Correct any ports that are in access mode. Verify that all physical ports in the topology are configured as trunks.The port channel interfaces should also be configured as trunks. The physical interfaces should be configured as trunks. On S2, the port channel interfaces and physical interfaces that have been configured in the port channels are all configured as access ports. Each pair will either be operational or down. When physical ports are assigned to an EtherChannel port, they behave as one logical port. When two or more redundant links connect the same switches, Spanning Tree protocol will only put one port in forwarding mode to prevent switching loops. Instructions Part 1: Examine the Physical Layer and Correct Switch Port Mode Issues Step 1: Look for access ports.Įxamine the switches.
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