22 network under the 2019 workers OSPF message () protocol is adopted to improve the packaging, to the target address () sent to all OSPF routers,
1 a. IP B.A RP C.U DP which CP
2 a. 224.0.0.1 224.0.0.2 b. c. 224.0.0.5 d. 224.0.0.8
The answer is 1. A, C
2.Explanation:
OSPF message direct call IP encapsulation, the radio network to the target address 224.0.0.5 send an LSA (Link State Advertisement) to all of the routers,
OSPF packet is encapsulated directly inside the IP header, all OSPF routers to monitor multicast address 224.0.0.5
DR/BDR: listening 224.0.0.5, 224.0.0.6
DROther: listening 224.0.0.5
All OSPF routers build neighbors use 224.0.0.5 DROther send lsas to 224.0.0.6, DR or BDR will update information to 224.0.0.5 LSU

Why isn't the second question 224.0.0.6?

CodePudding user response:

OSPF routers are listening 0.5, look at the question