1.Explain EIGRP Routing Protocol?
Enhanced Interior Gateway Routing Protocol (EIGRP Protocol) is an enhanced distance vector routing protocol which Uses Diffused Update Algorithm (DUAL) to calculate the shortest path. It is also considered as a Hybrid Routing Protocol because it has characteristics of both Distance Vector and Link State Routing Protocols.
EIGRP supports classless routing and VLSM, route summarization, incremental updates, load balacing and other features.
2.What are the requirements for neighborship in EIGRP?
The following fields in a hello packet must match for routers to become neighbors -
1.Autonomous System number.
2.K-values.
3.Authentication.
4.Primary address should be used.
5.If static neighborship than should be define on both sides.
3.What tables does EIGRP routers maintain?
EIGRP router stores routing and topology information in three tables:
1. Neighbor table - Stores information about EIGRP neighbors.
2. Topology table - Stores routing information which is learned from neighbor routers.
3. Routing table - Stores the best paths to all networks.
4.Why no auto-summary command is used in EIGRP?
By default, EIGRP behaves like a classfull routing protocol which means it does not advertises the subnet mask information along with the routing information. No auto-summary command will ensure that EIGRP sends the subnet mask information along with the routing information.
5.What metric does EIGRP use?
EIGRP calculates its metric by using Bandwidth, Load, Delay, Reliability and MTU.
Read More Questions:
EIGRP Interview Questions Part1
EIGRP Interview Questions Part2
EIGRP Interview Questions Part3
Enhanced Interior Gateway Routing Protocol (EIGRP Protocol) is an enhanced distance vector routing protocol which Uses Diffused Update Algorithm (DUAL) to calculate the shortest path. It is also considered as a Hybrid Routing Protocol because it has characteristics of both Distance Vector and Link State Routing Protocols.
EIGRP supports classless routing and VLSM, route summarization, incremental updates, load balacing and other features.
2.What are the requirements for neighborship in EIGRP?
The following fields in a hello packet must match for routers to become neighbors -
1.Autonomous System number.
2.K-values.
3.Authentication.
4.Primary address should be used.
5.If static neighborship than should be define on both sides.
3.What tables does EIGRP routers maintain?
EIGRP router stores routing and topology information in three tables:
1. Neighbor table - Stores information about EIGRP neighbors.
2. Topology table - Stores routing information which is learned from neighbor routers.
3. Routing table - Stores the best paths to all networks.
4.Why no auto-summary command is used in EIGRP?
By default, EIGRP behaves like a classfull routing protocol which means it does not advertises the subnet mask information along with the routing information. No auto-summary command will ensure that EIGRP sends the subnet mask information along with the routing information.
5.What metric does EIGRP use?
EIGRP calculates its metric by using Bandwidth, Load, Delay, Reliability and MTU.
Read More Questions:
EIGRP Interview Questions Part1
EIGRP Interview Questions Part2
EIGRP Interview Questions Part3
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