Black Box LGB6026A, Руководство по управлению

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C
HAPTER
21 | Unicast Routing
Configuring the Routing Information Protocol
– 521 –
access list that filters networks according to the IP address of the
router supplying the routing information.
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Number of Route Changes – The number of route changes made to
the IP route database by RIP.
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Number of Queries – The number of responses sent to RIP queries
from other systems.
Basic Timer Settings
N
OTE
:
The timers must be set to the same values for all routers in the
network.
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Update – Sets the rate at which updates are sent. This is the
fundamental timer used to control all basic RIP processes.
(Range: 5-2147483647 seconds; Default: 30 seconds)
Setting the update timer to a short interval can cause the router to
spend an excessive amount of time processing updates. On the other
hand, setting it to an excessively long time will make the routing
protocol less sensitive to changes in the network configuration.
◆
Timeout – Sets the time after which there have been no update
messages that a route is declared dead. The route is marked
inaccessible (i.e., the metric set to infinite) and advertised as
unreachable. However, packets are still forwarded on this route.
(Range: 90-360 seconds; Default: 180 seconds)
◆
Garbage Collection – After the timeout interval expires, the router
waits for an interval specified by the garbage-collection timer before
removing this entry from the routing table. This timer allows neighbors
to become aware of an invalid route prior to purging.
(Range: 60-240 seconds; Default: 120 seconds)
W
EB
I
NTERFACE
To configure general settings for RIP:
1. Click Routing Protocol, RIP, General.
2. Select Configure Global from the Action list.
3. Enable RIP, set the RIP version used on unset interfaces to RIPv1 or
RIPv2, set the default metric assigned to external routes, set the
maximum number of routes allowed by the system, and set the basic
timers.
4. Click Apply.