Flashcards
ICND2 Terminology
Cards in this deck (17)
- 1RTPReliable Transport Protocol
A network layer independent routing protocol that is used for the delivery and reception of EIGRP packets.
It's both unreliable and reliable. - 2OSPF Internal RouterA router that has all interfaces inside of one area.
- 3OSPF Backbone RouterA router that is in the backbone area. Typically 0
- 4OSPF ABRArea Border Router
Has interfaces in multiple areas. - 5OSPF ASBRAutonomous System Border Router
A router that has an interface to an external non OSPF network. - 6EIGRP Hello PacketsUsed to discover neighbors and form adjacencies.
Default is 5 seconds
60 seconds (slow links)
Hold time is 3x Hello Interval
Multicast unreliable packets - 7EIGRP Udate PacketsSent only when necessary, contain only the routing info needed, and are sent only to those routers that require it.
Use reliable delivery. - 8EIGRP Query PacketsUsed by DUAL when searching for networks.
Multicast/Unicast reliable packets - 9EIGRP Acknowledgement PacketsSent by EIGRP when reliable packets are used.
Update, Query, and Reply packets
unreliable unicast. - 10EIGRP Reply PacketSent in response to a query packet regardless of whether the replying router has info about the queried route.
Unicast reliable - 11EIGRP OpcodeSpecifies the EIGRP packet type
- 12DUALDiffusing Update Algorithm
primary way that EIGRP prevents loops.
Maintains a list of backup routes that have been determined loop free.
Allows EIGRP to converge quickly. - 13SuccessorThis is the primary route that EIGRP DUAL has chosen.
- 14Feasible SuccesorThis is a backup route that EIGRP has chosen that has passed the Feasibility Condition.
- 15Feasibility DistanceThis is the metric from my local router interface to the subnet.
- 16Reported DistanceThis is the metric from my neighbor to the subnet.
- 17Feasibility ConditionIf a neighbors Reported Distance is less than the local router's Feasible Distance, it can be a feasible successor.
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- Flashcards on ICND2 Terminology, created by rekkos on 17/11/2015.
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- rekkos
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