Bounded updates are sent to all routers within an autonomous system.
Partial updates are sent only to routers that need the information.
The updates are sent to all routers in the routing table.
Updates are bounded by the routers in the topology table.
Feasible successor route
A suboptimal route may be chosen as the best path to a destination if the bandwidth setting is higher than the actual bandwidth of the link.
The network may be unable to converge if the bandwidth setting does not match the actual bandwidth of the link.
Routing updates might arrive too fast for the interface to handle and be discarded because of buffer overflow.
The configured bandwidth must match the actual speed of the link so the link will operate properly.
Setting the bandwidth to a higher rate will optimize the effective throughput of the link.
Routes installed by DUAL
Lowest calculated metric to each destination
Network layer address of the neighbor routers
Number of EIGRP packets waiting to be sent
Feasible distance to each neighbor
Show ip eigrp interfaces detail
Show ip eigrp traffic
Show ip eigrp neighbors
Show ip eigrp topology all-links
Neighbor routers can quickly take over for a router that is in passive mode.
New routers and their routes can quickly be discovered by neighbor routers.
A router can share routing loads with neighbor routers.
A router can quickly discover when a neighbor router is no longer available.
Changes in network topology can quickly be shared with neighbor routers.
Router# show ip route
Router# show ip route eigrp
Router# show eigrp route
Router# show eigrp protocol
R1(config-router)# network 192.168.1.128
R1(config-router)# no auto-summary
R2(config-router)# no auto-summary
The routing protocol
The feasible distance of the route
The highest cost of the route
The route cost as advertised by the neighboring router
The physical address of the gateway interface