A.The principle to be followed when manually assigning labels is: the value of the outgoing label of the upstream node is the value of the incoming label of the downstream node

B.dynamicLSPDynamically established through the label publishing protocol, such asMP-BGP, RSVP-TE, LDP

C.Created by assigning labels staticallyLSPIt can also be dynamically adjusted according to changes in network topology, without administrator intervention.
pre

D.LSPstaticLSPand dynamicLSPtwo kinds. staticLSPManual configuration by administrator, dynamicLSPthen use Dynamic establishment of label protocol

A.The source IFP address of the ping packet is X

B.The ping sends Y ICMP requests

C.The ICMP request of this ping, the packet size is Z (excluding IP and ICMP header)

D.The ping packet belongs to VPN instance M

A.Inconsistent area types

B.The interval for sending Hello packets is inconsistent

C.Inconsistent area codes

D.The IP address mask of the interface is inconsistent

A.Backup device interface packet loss

B.The time interval of notification messages is too small

C.The link that transmits VRRP notification packets flaps

D.The VRRP backup group preemption delay configuration on both ends is inconsistent

A.Configure GigabitEthernet0/0/1 as a trusted interface

B.Enabling the DHCP Snooping configuration can be used to prevent DHCP Server counterfeiters from attacking

C.Enabling the DHCP Snooping configuration can be used to prevent ARP spoofing attacks

D.If the DHCP request message received by the GigabitEthemnet0/0/1 interface does not contain the SutOption information of Option82, the device will generate Option82 and insert it into the message