EIGRP Flashcards
(32 cards)
Reported Distance (RD)
Also known as advertised distance. It is the distance to a destination network reported by an upstream neighboring router
Path Cost
The total cost from a source router to a destination network
Feasible distance
The lowest path cost from a source router to a destination network
Feasibility condition
Means that the reported distance (RD) must be less than the feasible distance (FD)
Successor
The actual route that will be placed in the routing table of EIGRP routers
Feasible successor
The next best alternate route to a destination network
IOS commands to troubleshoot EIGRP queries
show ip eigrp topology
debug eigrp fsm
debug eigrp packet update reply query
Stub router
A router that does not forward EIGRP learned routes nor receive queries queries from non-stub routers
What are the two types of EIGRP load balancing?
Equal Metric
Unequal-Metric
IOS command to view EIGRP topology table
show ip eigrp topology
EIGRP packet header protocol number
88
What multicast address does EIGRP use?
224.0.0.10
Command to view EIGRP neighbors of a router
show ip eigrp neighbors
Command to configure/start the EIGRP process
router eigrp autonomous-system-number
example: router eigrp 100
Command to include a local interface in the EIGRP process
network ip-address [wildcard-mask]
the wildcard mask is optional
Command to include all interfaces in the EIGRP process
network 0.0.0.0 255.255.255.255
List the benefits provided by EIGRP stub routers
- improves network stability
- reduces resource utilization
- simplifies remote router configuration
Command to examine router table in order to identify EIGRP routes
show ip route
Default time in which a router waits to receive a reply to a query
Three minutes, after which the router will go into SIA state.
Commands to enable equal cost load balancing
router eigrp #
network x.x.x.x
maximum-paths #
How to compute variance for unequal cost load balancing
highest path cost of the link to include/smallest cost path
Commands to enable unequal load balancing by defining variance multiplier
router eigrp #
variance #
Display interfaces that have been enabled for EIGRPv6
show ipv6 eigrp interfaces
Display ipv6 neighbor information
show ipv6 neighbors
