Trouble Ticket 5-4

Problem: A junior network administrator has approached you indicating that the EtherChannel bundle she is trying to form between SW1 and SW2 is not forming. You need to solve this issue for her.

You start by reviewing the output of show etherchannel summary for SW1 and SW2, as shown in Example 5-31. Notice that both switches are using LACP as their protocol; however, the ports are either standalone or suspended, and the port channel is down. This is a good indication that there is a conflict with the port configurations.

Example 5-31 show etherchannel summary Output for SW1 and SW2

Click here to view code image

SW1#show etherchannel summaryFlags:  D - down        P - bundled in port-channel        I - stand-alone s - suspended ...

Get CCNP Routing and Switching TSHOOT 300-135: Official Cert Guide now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial