e-trunk mode

Function

The e-trunk mode command configures a working mode of an Eth-Trunk in an E-Trunk.

The undo e-trunk mode command restores the default working mode of an Eth-Trunk in an E-Trunk.

By default, an Eth-Trunk works in automatic mode in an E-Trunk.

Only the S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720-LI, S6720S-EI, S6720S-LI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.

Format

e-trunk mode { auto | force-master | force-backup }

undo e-trunk mode

Parameters

Parameter	Description	Value
auto	Indicates the automatic mode.	-
force-master	Indicates the forcible master mode.	-
force-backup	Indicates the forcible backup mode.	-

Views

Eth-Trunk interface view, MultiGE interface view

Default Level

2: Configuration level

Usage Guidelines

The e-trunk mode command is valid only for the Eth-Trunks added to an E-Trunk. When the Eth-Trunk is deleted from the E-Trunk, the configuration is cancelled.

When the E-Trunk works properly, changing the interval for sending packets or timeout of hello packets will cause the E-Trunk to alternate between the master state and the backup state. You are advised to set the working mode of a member Eth-Trunk to forcible master/backup before changing the interval for sending packets or the timeout of hello packets. After the new configuration takes effect, restore the working mode to automatic.

Example

# Set the working mode of Eth-Trunk 1 in an E-Trunk to forcible master.

<HUAWEI> system-view
[HUAWEI] interface Eth-Trunk 1
[HUAWEI-Eth-Trunk1] e-trunk mode force-master