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3Com Switch 8800 Configuration Guide Chapter 18 RIP Configuration
18-10
always become unreachable at the point when a new period starts, the actual value of
Garbage-collection timer is three to four times that of Period Update timer.
Note:
You must consider network performance when adjusting RIP timers, and configure all
the routers that are running RIP, so as to avoid unnecessary traffic or network jitter.
18.2.13 Configuring RIP-1 Zero Field Check of the Interface Packet
According to the RFC1058, some fields in the RIP-1 packet must be 0, and they are
called zero fields. Therefore, when an interface version is set as RIP-1, the zero field
check should be performed on the packet. But if the value in the zero filed is not zero,
processing will be refused. As there is no zero field in the RIP-2 packet, this
configuration is invalid for RIP-2.
Perform the following configuration in RIP view.
Table 18-14 Configure zero field check of the interface packet
Operation Command
Configure zero field check on the RIP-1 packet
checkzero
Disable zero field check on the RIP-1 packet
undo checkzero
By default, RIP-1 performs zero field check on the packet.
18.2.14 Specifying the Operating State of the Interface
In interface view, you can specify the operating state of RIP on the interface. For
example, whether RIP operates on the interface, namely, whether RIP update packets
are sent and received on the interface. In addition, whether an interface sends or
receives RIP update packets can be specified separately.
Perform the following configuration in interface view.
Table 18-15 Specify the operating state of the interface
Operation Command
Enable the interface to run RIP
rip work
Disable the interface to run RIP
undo rip work
Enable the interface to receive RIP update packet
rip input
Disable the interface to receive RIP update packet
undo rip input