QinQ в ProCurve

[Cynic]

Народ помогите ответить на такой вопрос.

 

A service provider has configured an HP 5406 zl switch to support QinQ in mixed mode. Port A1 is a member of C-VLAN 100. Which usage is supported by this configuration?

1. Port A1 is an uplink port that forwards the customer's tunneled traffic to another switch in the service provider's network.
   
2. Port A1 is connected to a customer's switch, and the switch tunnels all VLAN traffic received on this port through the service provider's network.
   
3. Port A1 is connected to a device in the service provider's network and transmits traffic to and from that device.
   
4. Port A1 is connected to a customer's switch, and the switch tunnels C-VLAN 100 traffic received on this port through the service provider's network.
   

 

Понятно, что ответ либо 2, либо 4. Но в мануале толком не написано может ли порт член C-VLAN принимать не тэгированный трафик и как он его будет обрабатывать.

Кстати может ProCurva маршрутизировать трафик между C-VLAN и S-VLAN как между обычными VLAN'ами?