
Customizing OSPF Services
117356-E Rev 00
6-9
Figure 6-1. OSPF ASE Routes
By default, an OSPF boundary router generates a type 2 metric for BGP, EGP, and
RIP routes. For routes from all other sources, the boundary router generates a type
1 metric.
Note:
The route weight value will appear to be greater than the route’s original
metric. For this reason, all routers advertising a particular network must use
the same metric type -- type 1 or type 2. If not, the router that receives the
advertisements may choose the wrong route.
EGP route to
destination X
BGP route to
destination X
OSPF AS
ASE routes
Boundary
router B
Internal
router
Boundary
router A
IP0019A
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