交换机SWA、SWB通过两根光纤千兆以太网链路连接在一起，其中交换机A上有如下接口配置:

[SWA] interface GigabitEthernet 1/0/1

[SWA-GigabitEthernet1/0/1] gvrp

[SWA-GigabitEthernet1/0/1] port link-type trunk

[SWA-GigabitEthernet1/0/1] port trunk permit vlan 1 10

[SWA] interface GigabitEthernet 1/0/2

[SWA-GigabitEthernet1/0/2] port link-type trunk

[SWA-GigabitEthernet1/0/2] port trunk permit vlan 1 10

若在SWA交换机上开启MSTP，则下列描述正确的是( )。