Brocade Mobility Access Point System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 794)

784 Brocade Mobility Access Point System Reference Guide
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External routes are external to area, originate from other routing protocols (or different OSPF
processes) and are inserted into OSPF using redistribution. A stub area is configured not to carry
external routes. Each external route can be tagged by the advertising router, enabling the passing
of additional information between routers. Each external route can also be tagged by the
advertising router, enabling the passing of additional information between routers on the boundary
of the autonomous system.
The External Routes tab displays a list of external routes, the area impacted, cost, path type, tag
and type 2 cost. Cost factors may be the distance of a router (round-trip time), network throughput
of a link, or link availability and reliability, expressed as simple unit-less numbers. This provides a
dynamic process of traffic load balancing between routes of equal cost.
6. Refer to the Network Routes tab.
FIGURE 54 Access Point - OSPF Network Routes tab
Network routes support more than two routers, with the capability of addressing a single physical
message to all attached routers (broadcast). Neighboring routers are discovered dynamically using
OSPF hello messages. This use of the hello protocol takes advantage of broadcast capability. An
OSPF network route makes further use of multicast capabilities, if they exist. Each pair of routers
on the network is assumed to communicate directly.
The Network Routes tab displays the network name, impacted OSPF area, cost, destination and
path type.
7. Select the Router Routes tab.