Dell BigIron RX Series, Руководство по настройке

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BigIron RX Series Configuration Guide 807
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The dampening [ <half-life> <reuse> <suppress> <max-suppress-time> ] parameter sets route
dampening parameters for the route. The <half-life> parameter specifies the number of minutes
after which the route’s penalty becomes half its value. The <reuse> parameter specifies how low a
route’s penalty must become before the route becomes eligible for use again after being
suppressed. The
<suppress> parameter specifies how high a route’s penalty can become before
the device suppresses the route. The <max-suppress-time> parameter specifies the maximum
number of minutes that a route can be suppressed regardless of how unstable it is. For information
and examples, refer to
“Configuring route flap dampening” on page 765.
The ip next hop <ip-addr> parameter sets the next-hop IP address for route that matches a match
statement in the route map.
The ip next-hop peer-address parameter sets the BGP4 next hop for a route to the neighbor
address.
The local-preference <num> parameter sets the local preference for the route. You can set the
preference to a value from 0 – 4294967295.
The metric [+ | - ] <num> | none parameter sets the MED (metric) value for the route. The default
MED value is 0. You can set the preference to a value from 0 – 4294967295.
•
set metric <num> – Sets the route’s metric to the number you specify.
•
set <num> – Increases route’s metric by the number you specify.
•
set metric - <num> – Decreases route’s metric by the number you specify.
•
set metric none – Removes the metric from the route (removes the MED attribute from the
BGP4 route).
The metric-type type-1 | type-2 parameter changes the metric type of a route redistributed into
OSPF.
The metric-type internal parameter sets the route's MED to the same value as the IGP metric of the
BGP4 next-hop route. The parameter does this when advertising a BGP4 route to an EBGP
neighbor.
The next-hop <ip-addr> parameter sets the IP address of the route’s next hop router.
The origin igp | incomplete parameter sets the route’s origin to IGP or INCOMPLETE.
The tag <tag-value> parameter sets the route’s tag. You can specify a tag value from 0 –
4294967295.
NOTE
This parameter applies only to routes redistributed into OSPF.
NOTE
You also can set the tag value using a table map. The table map changes the value only when the
device places the route in the IP route table instead of changing the value in the BGP route table.
Refer to
“Using a table map to set the tag value” on page 789.
The weight <num> parameter sets the weight for the route. You can specify a weight value from
0 – 4294967295.
Setting a BP4 route’s MED to be equal to the next-hop route IGP metric
To set a route's MED to the same value as the IGP metric of the BGP4 next-hop route, when
advertising the route to a neighbor, enter commands such as the following.