两台N5K组VPC，其中一台设备VPC组的成员端口始终不能加进VPC，查看LOG接口加入成功后不久就自动DOWN，对比其他组配置是一样。以下是LOG:
2022 Sep 6 02:23:18 NEV-N5K-01 %ETH_PORT_CHANNEL-5-PORT_INDIVIDUAL_DOWN: individual port Ethernet1/1 is down
2022 Sep 6 02:23:18 NEV-N5K-01 %ETHPORT-5-SPEED: Interface port-channel16, operational speed changed to 10 Gbps
2022 Sep 6 02:23:18 NEV-N5K-01 %ETHPORT-5-IF_DUPLEX: Interface port-channel16, operational duplex mode changed to Full
2022 Sep 6 02:23:18 NEV-N5K-01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel16, operational Receive Flow Control state changed to off
2022 Sep 6 02:23:18 NEV-N5K-01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel16, operational Transmit Flow Control state changed to off
2022 Sep 6 02:23:43 NEV-N5K-01 %ETH_PORT_CHANNEL-5-PORT_HOT_STANDBY: port-channel16: Ethernet1/1 goes to hot-standby
2022 Sep 6 02:25:50 NEV-N5K-01 %ETH_PORT_CHANNEL-5-PORT_HOT_STANDBY_DOWN: port-channel16: hot-standby port Ethernet1/1 is down
2022 Sep 6 02:25:50 NEV-N5K-01 %ETHPORT-5-SPEED: Interface port-channel16, operational speed changed to 10 Gbps
2022 Sep 6 02:25:50 NEV-N5K-01 %ETHPORT-5-IF_DUPLEX: Interface port-channel16, operational duplex mode changed to Full
2022 Sep 6 02:25:50 NEV-N5K-01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel16, operational Receive Flow Control state changed to off
2022 Sep 6 02:25:50 NEV-N5K-01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel16, operational Transmit Flow Control state changed to off
2022 Sep 6 02:26:00 NEV-N5K-01 %ETH_PORT_CHANNEL-4-PORT_INDIVIDUAL: port Ethernet1/1 is operationally individual
2022 Sep 6 02:26:00 NEV-N5K-01 %ETHPORT-5-IF_UP: Interface Ethernet1/1 is up in mode trunk
2022 Sep 6 02:29:00 NEV-N5K-01 %ETHPORT-5-IF_DOWN_INITIALIZING: Interface Ethernet1/1 is down (Initializing)
2022 Sep 6 02:29:00 NEV-N5K-01 last message repeated 1 time
配置：
interface Ethernet1/1
switchport mode trunk
channel-group 16 mode active
interface port-channel16
switchport mode trunk
vpc 16
vpc domain 1
peer-switch
role priority 1000
system-priority 2000
peer-keepalive destination 1.1.1.2 source 1.1.1.1 vrf default
delay restore 150
peer-gateway
