请教,二层交換机插上不同电讯公司专线,交換机长亮綠灯自动重起,不知道是什么情況?

[D_W]

插上第一組的专线到( 二层交換机 -- 网关 )可以正常使用 .

插上第二組的专线到  ( 二层交換机 -- 网关)交換机所有端口全部长亮綠灯, 交換机自动重起,不知道是什么情況?

接口设了 (speed 100 ) 速率也不成.

interface Gi1/0/1
description "SDWAN"
switchport access vlan 400
exit
!
interface Gi1/0/2
description "SDWAN"
switchport access vlan 400
exit
!
interface Gi1/0/3
description "SDWAN"
switchport access vlan 400
exit
!
interface Gi1/0/4
description "SDWAN"
switchport access vlan 400
exit
!
interface Gi1/0/5
description "20M_CT"
switchport access vlan 500
switchport protected 
exit
!
interface Gi1/0/6
description "20M_CT"
switchport access vlan 500
exit
!
interface Gi1/0/7
description "20M_CT"
switchport access vlan 500
exit
!
interface Gi1/0/8
description "20M_CT"
switchport access vlan 500
exit
!
interface Gi1/0/9
speed 100
description "HKBN/CU"
switchport access vlan 600
switchport protected 
exit
!
interface Gi1/0/10
description "HKBN/CU"
spanning-tree portfast
switchport access vlan 600
exit
!
interface Gi1/0/11
description "HKBN/CU"
spanning-tree portfast
switchport access vlan 600
exit
!
interface Gi1/0/12
description "HKBN/CU"
spanning-tree portfast
switchport access vlan 600
exit

[Rps-Cheers]

建议看看交换机的show ver，查看一下重启原因。此外可以console到交换机，记录console log，看看异常时是否有明显的log弹出。

还有就是设备是否有记录到crashinfo或者coredump。对方设备是否有发送什么异常的报文导致Switch crash。