Ways to solve the H3C router cannot transfer

In the process of using a router, buy CXL it will inevitably encounter all kinds of faults,this paper mainly H3C router as an example, we analyze the routing networkenvironment in the upstream, downstream to learn is not the fault reason andsolving steps, we believe that the right help.

1 network environment

Layer two forwarding multicast data through A to Huawei Huawei, A VLANIFend of the multicast source of VLAN information, the three layer interface allenable multicast protocol IGMP and PIM SM, IGP routability equipment HuaweiB, but B doesn't study to hanging equipment Huawei Huawei A multicast routing, resulting in multicast service can not operate normally.

2 fault analysis

1, use the command Ping B in Huawei, normal Ping multicast source address,IGP routing is normal, IP normal business, can eliminate IP problems.

2, use the command display in Huawei A multicast routing-table, found that (S,G) table generation. And use the command display multicast routing-table B inHuawei, not (S, G) table generation.

3, Huawei A without learning to multicast routing, in Huawei A directly connected multicast client use normal.

4, Huawei A access through the VLANIF multicast source, need to enable the property routing command in the VLANIF interface. Check the configuration file from the command display current-configuration, found no command propertyrouting is enabled in VLANIF interface.

3  the processing steps, perform the following operations in Huawei A

1, the command System-View, enter the system view.

2, the command interface vlanif interface-number, go to the VLANIF view.

The 3, execute the command property routing, routing properties to configure the VLANIF interface for routing.

The completion of the operation, Huawei following B equipment can normally receive multicast data stream, troubleshooting, in the VLANIF interface as theserver and other IP routing devices running multicast protocol, VLANIF interface to configure routing properties for routing.

Only in a VLAN with only one port, the VLANIF interface can be configured forthe routing attribute. In other cases, the routing properties of the VLANIFinterface can be configured for bridging, routing properties default VLANIFinterface for bridging,  buy SL4A includes a plurality of ports in the VLANIF interface,routing property can only be VLANIF interface for bridging.