Troubleshooting – H3C Technologies H3C S7500E Series Switches User Manual

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[DeviceD] interface gigabitethernet 2/0/2

[DeviceD-GigabitEthernet2/0/2] link-delay 0

[DeviceD-GigabitEthernet2/0/2] undo stp enable

[DeviceD-GigabitEthernet2/0/2] port link-type trunk

[DeviceD-GigabitEthernet2/0/2] port trunk permit vlan all

[DeviceD-GigabitEthernet2/0/2] quit

# Create RRPP domain 1, configure VLAN 4092 as the primary VLAN of RPPP domain 1, and

configure the VLANs mapped to MSTIs 0 through 31 as the protected VLANs of RRPP domain

[DeviceD] rrpp domain 1

[DeviceD-rrpp-domain1] control-vlan 4092

[DeviceD-rrpp-domain1] protected-vlan reference-instance 0 to 31

# Configure Device D as a transit node of the primary ring Ring 1, with GigabitEthernet 2/0/1 as

the primary port and GigabitEthernet 2/0/2 as the secondary port, and enable Ring 1.

[DeviceD-rrpp-domain1] ring 1 node-mode transit primary-port gigabitethernet 2/0/1

secondary-port gigabitethernet 2/0/2 level 0

[DeviceD-rrpp-domain1] ring 1 enable

[DeviceD-rrpp-domain1] quit

# Enable the RRPP protocol.

[DeviceD] rrpp enable

5) Verification

After the above configuration is completed, you can use the display command to view RRPP

configuration and operational information on Device A and Device D.

Troubleshooting

Symptom:

When the link state is normal, the master node cannot receive Hello packets, and the master

node unblocks the secondary port.

Analysis:

The reasons may be:

RRPP is not enabled on some nodes in the RRPP ring.

The domain ID or primary control VLAN ID is not the same for the nodes in the same RRPP

ring.

Some ports are abnormal.

Solution:

Use the display rrpp brief command to check whether RRPP is enabled for all nodes. If

not, use the rrpp enable command and the ring enable command to enable RRPP and

RRPP rings for all nodes.

Use the display rrpp brief command to check whether the domain ID and primary control

VLAN ID are the same for all nodes. If not, set the same domain ID and primary control

VLAN ID for the nodes.

Use the display rrpp verbose command to check the link state of each port in each ring.

Use the debugging rrpp command on each node to check whether a port receives or

transmits Hello packets. If not, Hello packets are lost.

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