Which two statements about the IS －IS routing protocol are true?() A. IS - IS is capable of supporting IPv4 and IPv6.B. IS - IS is only capable of supporting IPv4 and CLNS.C. IS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships.D. IS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths.E. Level 1 routers learn about paths within the area of which they are a part.F. Level 2 routers learn about paths both within areas and between areas.
Which two statements about the IS －IS routing protocol are true?()
A. IS - IS is capable of supporting IPv4 and IPv6.
B. IS - IS is only capable of supporting IPv4 and CLNS.
C. IS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships.
D. IS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths.
E. Level 1 routers learn about paths within the area of which they are a part.
F. Level 2 routers learn about paths both within areas and between areas.
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多选题Which two statements are true about the forwarding table?（）AThe forwarding table lists each source protocol and preference for each destinationBThe forwarding table constains only active routesCThe forwarding table is used to process transit packetsDThe forwarding table is stored in compact flash
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