Switches SWA and SWB are connected together through two optical fiber Gigabit Ethernet links, and the following interface configuration is available on switch SWA:
[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
If you want to configure link aggregation to aggregate these two links, if the configuration on SWB is correct, which of the following you can know from the above information?
A . Only when all VLANs are allowed to pass through GigabitEthernet1/0/2 and Gigabit1/0/1, can the two be added to the same aggregation group.
B . Only when the configuration of GigabitEthe1/0/2 is changed to be consistent with that of GigabitEthe1/0/1, can the two be added to the same aggregation group.
C . After link aggregation is configured on SWA and SWB, if both SWA and SWB enable MSTP on the aggregation port, one of GigabitEthe1/0/1 and GigabitEthe1/0/2 will be blocked.
D . After link aggregation is configured on SWA and SWB, if both SWA and SWB enable MSTP on the aggregation ports, GigabitEthernet1/0/1 and GigabitEthe1/0/2 can participate in forwarding.
Answer: D
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