8Configuring an S-channel interface or S-channel aggregateinterfaceStep Command Remarks1. Enter system view. system-view N/A2. Enter S-channel interfaceview or S-channel aggregateinterface view.interface { s-channel |schannel-aggregation }interface-number:channel-idN/A3. (Optional.) Set the expectedbandwidth of the interface. bandwidth bandwidth-valueBy default, the expectedbandwidth of an interface is thedefault maximum bandwidth ofthe physical port to which theinterface belongs.4. (Optional.) Restore thedefault settings for theinterface.default N/A5. (Optional.) Set a descriptionfor the interface. description textThe default descriptioninformation is "interface nameInterface."6. Bring up the interface. undo shutdown By default, the interface is up.Enabling the RR mode for an S-channelEVB TLVs exchanged through LLDP allow an EVB station and EVB bridge to negotiate the RR mode.If the EVB bridge supports the RR mode, when the EVB station requests the use of the RR mode, thebridge performs the following operations:• Automatically enables the RR mode for the S-channel.• Saves the configuration in the configuration file on the bridge.You can perform this task to manually enable the RR mode for an S-channel.To enable the RR mode for an S-channel:Step Command Remarks1. Enter system view. system-view N/A2. Enter S-channel interfaceview or S-channelaggregate interface view.interface { s-channel |schannel-aggregation }interface-number:channel-idN/A3. Enable the RR mode for theS-channel. evb reflective-relay By default, the RR mode isdisabled for an S-channel.Disabling MAC address learning for an S-channelPerform this task to manually disable the MAC address learning feature for an S-channel.Follow these restrictions and guidelines when you disable MAC address learning for an S-channel:• For the bridge to successfully forward traffic for VMs on the EVB station, do not disable MACaddress learning on an S-channel with the RR mode disabled.