H3C S7500 Series Ethernet Switches Command Manual

Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 1 Static Route Configuration Commands
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Field Description
Interface
Output interface where packets to the destination network segment
are forwarded.
Vlinkindex Virtual link index
Route state:
ActiveU Active unicast routes
Blackhole
Blackhole routes, which are similar to Reject routes
except that blackhole routes do not send ICMP
unreachable messages to the source end of the packet.
Delete The route is deleted.
Gateway Indirect routes
Hidden
If you do not want to remove some routes that are not
available temporarily for some reasons (such as the
configured polices, the port being down), you can hide
the route so as to restore it later.
Holddown
Holddown is a route redistribution policy adopted by
some distance-vector (D-V) routing protocols such as
RIP. Through Holddown, a routing protocol can avoid the
flooding of error routes and deliver route unreachable
messages accurately. It redistributes a certain route at
regular intervals regardless of whether the actually found
routes leading to the same destination change. For more
details, refer to the specific routing protocols.
Int
The route is discovered by the interior gateway protocol
(IGP).
NoAdvise
NoAdvise routes are nor advertised when the routing
protocol ad
NotInstall
Generally, the route with the highest preference in a
routing table is added to the core routing table and
advertised. Comparatively, NotInstall routes cannot be
added to the core routing table, however, they may be
advertised.
Reject
Reject routes do not distribute packets like normal
routes. Instead, the packet that selects a reject route will
be dropped, and ICMP unreachable messages will be
sent to the source end of the packet. Reject routes are
generally used in network tests.
Retain
When the routes read by the core routing table are
removed, the routes with the “retain” tag will not be
removed. You can set some static routes as retain routes
so that they can continue to exist in the core routing table.
State
Static
The static routes manually configured on the router are
tagged as static routes, which will not be removed from
the routing table if the router is restarted after the save
command is executed.