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Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter RIP view.
rip
[ process-id ] [
vpn-instance
vpn-instance-name ]
N/A
3. Specify the interval for
sending RIP packets and the
maximum number of RIP
packets that can be sent at
each interval.
output-delay
time
count
count
By default, an interface sends up
to three RIP packets every 20
milliseconds.
Setting the maximum length of RIP packets
NOTE:
The supported maximum length of RIP packets varies by vendor. Use this feature with caution to
avoid compatibility issues.
The packet length of RIP packets determines how many routes can be carried in a RIP packet. Set
the maximum length of RIP packets to make good use of link bandwidth.
When authentication is enabled, follow these guidelines to ensure packet forwarding:
• For simple authentication, the maximum length of RIP packets must be no less than 52 bytes.
• For MD5 authentication (with packet format defined in RFC 2453), the maximum length of RIP
packets must be no less than 56 bytes.
• For MD5 authentication (with packet format defined in RFC 2082), the maximum length of RIP
packets must be no less than 72 bytes.
To set the maximum length of RIP packets:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Set the maximum length of
RIP packets.
rip max-packet-length
value
By default, the maximum length of
RIP packets is 512 bytes.
Configuring RIP GR
GR ensures forwarding continuity when a routing protocol restarts or an active/standby switchover
occurs.
Two routers are required to complete a GR process. The following are router roles in a GR process:
• GR restarter—Graceful restarting router. It must have GR capability.
• GR helper—A neighbor of the GR restarter. It helps the GR restarter to complete the GR
process.
After RIP restarts on a router, the router must learn RIP routes again and update its FIB table, which
causes network disconnections and route reconvergence.
With the GR feature, the restarting router (known as the GR restarter) can notify the event to its GR
capable neighbors. GR capable neighbors (known as GR helpers) maintain their adjacencies with
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