3Com Switch 7757, Configuration Manual

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294 C
HAPTER
33: RIP C
ONFIGURATION
n
The rip metricout command takes effect only on the RIP routes learnt by the
router and the RIP routes generated by the router itself, but not on any route
imported to RIP from other routing protocols.
Configuring RIP route summary
Route summary means that different subnet routes in the same natural network
segment can be aggregated into one route with a natural mask for transmission to
another network segment. This function is used to reduce the routing traffic on
the network as well as to reduce the size of the routing table.
Route summary does not work for RIP-1. RIP-2 supports route summary. When it is
needed to advertise all subnet routes, you can disable the function for RIP-2.
Disabling the receiving of host routes
In some special cases, the router can receive a lot of host routes from the same
segment, and these routes are of little help in route addressing but consume a lot
of network resources. After host route receiving is disabled, a router can refuse
any incoming host routes.
Set the additional routing
metric to be added for
incoming RIP routes on this
interface rip metricin value Optional
By default, the additional
routing metric added for
incoming routes on an
interface is 0.
Set the additional routing
metric to be added for
outgoing RIP routes on this
interface rip metricout value Optional
By default, the additional
routing metric added for
outgoing routes on an
interface is 1.
Table 217 Set additional routing metric
Operation Command Description
Table 218 Configure RIP route summary
Operation Command Description
Enter system view system-view -
Enter RIP view rip -
Enable RIP-2 automatic
route summary summary Optional
By default, RIP-2 automatic
route summary is enabled.
Table 219 Disable the receiving of host route
Operation Command Description
Enter system view system-view -
Enter RIP view rip -
Disable the receiving of host
routes undo host-route Optional
By default, the router receives
host routes.