Cisco MDS-9124 Troubleshooting Guide - Page 218

Trunking Issues Chapter 10 Troubleshooting PortChannels and Trunking Send documentation comments to [email protected] Newly Added Interface Does Not Come Online In a PortChannel Symptom Newly added interface does not come online in a PortChannel. Table 10-2 Newly Added Interface Does Not Come Online in a PortChannel Symptom Newly added interface does not come online in a PortChannel. Possible Cause Solution PortChannel mode is on. Enable PortChannel manually or change PortChannel mode to active. See the "Configuring Port Channel Modes Using Fabric Manager" section on page 10-4. Or, use the no shutdown CLI command to enable the PortChannel manually or use the channel-mode active CLI command in the interface submode for the PortChannel interface. Interface parameters are not compatible with existing PortChannel. Use the force option to force the physical interface to take on the parameters of the PortChannel. In Fabric Manager, choose ISLs > Port Channels, check the Force check box, and click Apply Changes. Or, use the channel-group force CLI command in the interface submode for the physical interface. Configuring Port Channel Modes Using Fabric Manager To configure active mode using Fabric Manager, follow these steps: Step 1 Step 2 Step 3 Expand ISLs and then select Port Channels in the Physical Attributes pane. You see the PortChannels configured in the Information pane. Click the Protocols tab and, from the Mode drop-down menu, select the appropriate mode for the Port Channel. Click Apply Changes icon to save any modifications or click Undo Changes to discard any changes. Trunking Issues This section describes common trunking issues and includes the following topics: • Cannot Configure Trunking, page 10-5 • VSAN Traffic Does Not Traverse Trunk, page 10-5 10-4 Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x OL-9285-05