port serdes-mode

Function

The port serdes-mode command configures the Serdes mode of a MultiGE interface.

The undo port serdes-mode command restores the default Serdes mode of a MultiGE interface.

By default, a MultiGE interface can work in 1G or 10G Serdes mode.

This command is supported only on the following switch models:

S5732-H24UM2CC and S5732-H48UM2CC

Format

port serdes-mode { 2500-base-x | 5000-base-x } { sgmii | xfi }

port serdes-mode sgmii xfi

undo port serdes-mode

Parameters

Parameter	Description	Value
2500-base-x	Configures an interface to work in 2.5G Serdes mode.	-
5000-base-x	Configures an interface to work in 5G Serdes mode.	-
sgmii	Configures an interface to work in 1G Serdes mode.	-
xfi	Configures an interface to work in 10G Serdes mode.	-

Views

MultiGE interface view

Default Level

2: Configuration level

Usage Guidelines

By default, when a MultiGE interface on the S5732-H24UM2CC, or S5732-H48UM2CC works at the rate of 2.5 Gbit/s or 5 Gbit/s, the Serdes mode of the MultiGE interface is 10G. When a Huawei device is connected to a non-Huawei device, if the preamble of packets sent from the non-Huawei device is not fixed, the MultiGE interface connecting the Huawei device to the non-Huawei device discards the packets. To prevent this problem, when a Huawei device connects to a non-Huawei device and receives the ENTITYTRAP_1.3.6.1.4.1.2011.5.25.219.2.2.3 hwBoardFail alarm with EntityTrapFaultID being 132282, run the port serdes-mode command to change the Serdes mode of the MultiGE interface to 2.5G or 5G based on the alarm information.

Every eight MultiGE interfaces of the S5732-H24UM2CC, or S5732-H48UM2CC form a MultiGE interface group. Each group of MultiGE interfaces supports only two Serdes modes. When a Huawei device connects to a non-Huawei device, the MultiGE interface connecting the Huawei device to the non-Huawei device cannot go Up if its Serdes mode is different from that on the non-Huawei device. To prevent this problem, when a Huawei device connects to a non-Huawei device and receives the ENTITYTRAP_1.3.6.1.4.1.2011.5.25.219.2.2.3 hwBoardFail alarm with EntityTrapFaultID being 132283, run the port serdes-mode command to change the Serdes mode of the MultiGE interface to be the same as that on the non-Huawei device based on the alarm information.

Example

# Configure a MultiGE interface to work in 2.5G or 10G Serdes mode.

<HUAWEI> system-view
[HUAWEI] interface MultiGE 0/0/1
[HUAWEI-MultiGE0/0/1] port serdes-mode 2500-base-x xfi