Edge-Core ECS4660-28F, Руководство по управлению, Страница: 781 / 2020

C
HAPTER
20
| Unicast Routing
Configuring the Routing Information Protocol
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Figure 476: Showing External Routes Redistributed into RIP
S
PECIFYING AN
A
DMINISTRATIVE
D
ISTANCE
Use the Routing Protocol > RIP > Distance (Add) page to define an
administrative distance for external routes learned from other routing
protocols.
CLI R
EFERENCES
◆ "distance" on page 1736
C
OMMAND
U
SAGE
◆
Administrative distance is used by the routers to select the preferred
path when there are two or more different routes to the same
destination from two different routing protocols. A smaller
administrative distance indicates a more reliable protocol.
◆
The administrative distance is applied to all routes learned for the
specified network.
P
ARAMETERS
These parameters are displayed:
◆
Distance – Administrative distance for external routes. External routes
are routes for which the best path is learned from a neighbor external
to the local RIP autonomous system. Routes with a distance of 255 are
not installed in the routing table. (Range: 1-255)
◆
IP Address – IP address of a route entry.
◆
Subnet Mask – This mask identifies the host address bits used for
associated routing entries.
W
EB
I
NTERFACE
To define an administrative distance for external routes learned from other
routing protocols:
1.
Click Routing Protocol, RIP, Distance.
2.
Select Add from the Action list.
3.
Enter the distance, the external route, and optionally enter the name of
an ACL to filter networks according to the IP address of the router
supplying the routing information.