H3c-technologies H3C WX6000 Series Access Controllers Uživatelský manuál stáhnout pdf (Strana 215)

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z When configuring a static route, the static route does not take effect if you specify the next hop

address first and then configure it as the IP address of a local interface, such as a VLAN interface.

z If you do not specify the preference when configuring a static route, the default preference will be

used. Reconfiguring the default preference applies only to newly created static routes.

z You can flexibly control static routes by configuring tag values and using the tag values in the route

policy.

z If the destination IP address and mask are both configured as 0.0.0.0 with the ip route-static

command, the route is the default route.

Detecting Reachability of the Static Route’s Nexthop

If a static route fails due to a topology change or a fault, the connection will be interrupted. To improve

network stability, the system needs to detect reachability of the static route’s next hop and switch to a

backup route once the next hop is unreachable.

Detecting Nexthop Reachability Through Track

If you specify the nexthop but not outgoing interface when configuring a static route, you can associate

the static route with a track entry to check the static route validity:

z When the track entry is positive, the static route's nexthop is reachable and the static route takes

effect.

z When the track entry is negative, the static route's nexthop is unreachable and the static route is

invalid. For details about track, refer to Track in H3C WX6103 Access Controller Switch Interface

Board Configuration Guide.

Network requirements

To detect the reachability of a static route's nexthop through a Track entry, you need to create a Track

first. For detailed Track configuration procedure, refer to Track in H3C WX6103 Access Controller

Switch Interface Board Configuration Guide.

Configuration procedure

Follow these steps to detect the reachability of a static route's nexthop through Track:

To do… Use the command… Remarks

Enter system view

system-view

—

Associate the static route

with a track entry

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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