l The undo rip output command is configured on the outgoing interface so that the interface
is disabled to send the RIP packet.
l The RIP split-horizon is disabled on the outgoing interface.
l The policy for filtering imported RIP routes is configured in RIP.
l The physical status of the interface is Down or Administratively Down, or the current
status of the protocol on the outgoing interface is Down. The IP address of the interface
cannot be added to the advertised routing table for RIP.
l Although the outgoing interface does not support the multicast or broadcast mode, packets
must be sent to a multicast or broadcast address.
l The MTU value of the outgoing interface is less than 52.
Troubleshooting Flowchart
If a router sends partial or none routes, refer to the following troubleshooting flowchart, as shown
in Figure 7-7.
Huawei AR2200-S Series Enterprise Routers
Troubleshooting 7 IP Forwarding and Routing
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
186
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