3Com 8807 Configuration Manual page 373

Configuring Network
Routes for BGP
Distribution
Configuring the
Interaction between
BGP and IGP (Importing
IGP Routes)
Configuring to Permit
BGP to Import Default
Routes of Other
Protocols
Configuring BGP Route
Aggregation
Perform the following configuration in BGP view.
Table 369 Configure network routes for BGP distribution
Operation
Configure the local network route for BGP
distribution
Remove the local network route for BGP
distribution
By default, no network route is configured for BGP distribution.
BGP can transmit the internal network information of local AS to other AS. To
reach such objective, the network information about the internal system learned
by the local router via IGP routing protocol can be transmitted.
Perform the following configuration in BGP view.
Table 370 Import IGP routing information
Operation
Configure BGP to import routes of IGP
protocol
Configure BGP not to import routes of IGP
protocol
The protocol argument specifies the imported source route protocols. The
specified and imported source route protocols can be direct, static, rip, isis, ospf,
ospf-ase, and ospf-nssa.
By default, BGP does not import the route information of other protocols.
Note that when BGP imports other routes, the default routes of other protocols
are not imported.
After you configure the import-route command in a BGP view, you cannot
import the default route of the imported source route protocols to BGP by default.
Perform the following configuration in BGP view.
Table 371 Configure to permit BGP to import default routes of other protocols
Operation
Configure to permit BGP to import routes of
other protocols
Configure to permit BGP to filter the default
routes of a protocol when this protocol is
imported
By default, BGP does not import the default routes of other protocols when BGP is
importing the routes of other protocols.
The BGP supports two forms of route aggregation:
Configuring BGP
Command
network ip-address address-mask [
route-policy policy-name ]
undo network ip-address address-mask [
route-policy policy-name ]
Command
import-route protocol [ med med-value ] [
route-policy route-policy-name ]
undo import-route protocol
Command
default-route imported
undo default-route imported
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