A. The Ethernet_Type domain is fixed to Ox8863

B. The Session_ID of the PPP session is not allowed to change and must be the specified in the Discovery phase

C. Once a PPPoE session is established, all Ethernet packets are unicast

D. When PPPoE passes session data, Code must be set to Ox0

A. False

B. True

A. By default, the router assigns the same tag value to all VPNv4 routes destined for the peer

B. The egress PE uses the inner tag when determining which egress CE the message should be sent to.

C. MPLS BGPVPN uses two layers of tags: public labels (also known as outer labels) and private network labels (also known as inner labels).

D. Private network tags are carried and distributed by MP-BGP when routing, and public network tags are distributed by the LDP protocol.

A. BSR advertises BSR and C-RP information to all routers in the PIM-SM domain by flooding Bootstrap packets

B. PIM-SM domain can have more than one C-BSR, but only one BSR can be elected by the C-BSR that receives the C-RP Packets are collected C-one RP information

C. A C-BSR can also collect C-RP information by receiving C-RP packets

A. OSPFv3 can only establish a security alliance SA using manual mode

B. OSPFv3 authentication relies on IPv6 packet authentication headers and encapsulation security net load headers

C. Huawei router OSPFv3 IPSec authentication can not only support transmission mode, but also support tunnel mode

D. The OSPFv3 protocol header removes the Type and Automation fields