A.When the penultimate hop LSR performs label switching, if the value of the label after the exchange is found to be 3, the label will be ejected by default and the packet will be sent to the last hop

B.1024 or more is the label space shared by dynamic signaling protocols such as LDP, RSVP-TE, MP-BGP, etc.

C.16~1023 is the label space shared by static LSP and static CR-LSP

D.If the outgoing label value is 0, the router will directly discard the packet

A.When the number of equal-cost routes in the network is greater than the number configured by commands, and these routes have the same priority, the next-hop device is preferredSystem IDLarge routes for load balancing

B.For each route in the equal-cost route, a priority can be specifieD. and the route with higher priority will be preferred. the rest as backup routes

C.After configuring equal-cost route priorityJS-ISWhen the device forwards the traffic reaching the destination network segment, it will not adopt the load balancing methoD. but forward the traffic to the next hop with the highest priority

D.If load sharing is configureD. the traffic will be evenly distributed to each link