3Com 4510G, Руководство по настройке

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7-3
Configuring Collaboration Between the Track Module and the
Application Modules
Configuring Track-Static Routing Collaboration
You can check the validity of a static route in real time by establishing collaboration between Track and
static routing.
If you specify the next hop but not the egress interface when configuring a static route, you can
associate the static route with a Track object and thus check the validity of the static route according to
the status of the Track object.
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If the status of the Track object is Positive , then the next hop of the static route is reachable, and
the configured static route is valid.
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If the status of the Track object is Negative , then the next hop of the static route is unreachable,
and the configured static route is invalid.
Follow these steps to configure the Track-Static Routing collaboration:
To do… Use the command… Remarks
Enter system view system-view —
Configure the Track-Static
Routing collaboration, so as to
check the reachability of the
next hop of the static route
ip route-static dest-address
{ mask | mask-length }
next-hop-address track
track-entry-number
[ preference
preference-value ] [ tag
tag-value ] [ description
description-text ]
Required
Not configured by default.
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For the configuration of Track-Static Routing collaboration, the specified static route can be an
existent or nonexistent one. For an existent static route, the static route and the specified Track
object are associated directly; for a nonexistent static route, the system creates the static route
and then associates it with the specified Track object.
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The Track object to be associated with the static route can be a nonexistent one. After you use the
track command to create the Track object, the association takes effect.
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If a static route needs route recursion, the associated Track object must monitor the next hop of
the recursive route instead of that of the static route; otherwise, a valid route may be considered
invalid.
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For details of static route configuration, refer to Static Routing Configuration in the IP Routing
Volume .