Configuring the Serdes Mode of a MultiGE Interface

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.

Only the following switch models support the configuration:

S5732-H24UM2CC and S5732-H48UM2CC