A. If a port does not receive a configuration BPDU sent by the upstream device for 4 consecutive Hello Time, the device considers the negotiation with this neighbor to fail

B. In addition to the 3 port states, RSTP vice adds 2 new port roles

C. RSTP port state specification is divided according to whether the port forwards user traffic and learns the MAC address, reducing the original 5 port states to 3

D. Non-root switches running RSTP send configuration BPDUs at intervals specified by Hello Timer, a behavior that is entirely autonomous for each device

A. In Unifor mode, when an IP message passes through an MPLS network, the inbound IPTTL is minus 1.
The MPLSTTL field is a fixed value

B. In MMLSVPI, if you need to hide the structure of the MPLS backbone network, you can use the Uniform mode on Ingress for private network messages

C. Pipe mode. When an IP message passes through an MPLS network, the IPTTL minus l at the entry point is mapped to the MPLS TTL field

D. MPLS tags in the TTL, which mean the same as the TTL domain in the IP header. TTL prevents mpLS networks from creating routing loops

A. By default: Match in the order in which the perfect is matched first, then deny is matched.

B. By default, rule-ID is followed Match from small to large

C. By default, matching is based on the principle of "depth first"

D. There is only one matching order and cannot be modified

A. Configure the IPSG

B. Limits the maximum number of DHCP Snooping binding table entries that the interface allows to learn

C. Configuration DAI

D. Configure the static ARP binding table

A. SSM uses only shared trees

B. SSM is recommended when you have multiple sources and expect to minimize the state of mroute in your network Ideal for many-to-many applications

C. SSM uses only the SPT tree

D. Ideal for 1-to-many applications

E. No RP is required