Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
37
No. Items to check and commands Action
3 Use the show axrp operation
command to check the ring port and
its status for each VLAN group.
If the information about the port and status defined in the network
configuration is displayed for Ring Port and Role/State, go to
No. 4.
If any other information is displayed, check the configuration.
4 Use the show axrp detail
operation command to check the
control VLAN ID.
If the VLAN ID defined in the network configuration is displayed for
Control VLAN ID, go to No. 5.
If any other information is displayed, check the configuration.
5 Use the show axrp detail
operation command to check the
VLAN IDs that belong to the VLAN
group.
If the VLAN IDs defined in the network configuration are displayed
for VLAN ID, go to No. 6.
6 Use the show vlan detail
operation command to check the
VLAN used for the Ring Protocol
and its port status.
Make sure there are no errors on the VLAN and its ports.
If the multi-fault monitoring functionality is to be applied for the
configuration, also check No. 7.
If there is any anomaly, check the configuration and restore the
states of the VLAN and its ports.
7 If the multi-fault monitoring
functionality is applied, use the
show axrp detail operation
command to check the operating
mode for the multi-fault monitoring
functionality.
If transport-only is set, go to No. 8.
If any other information is displayed, check the configuration.
8 Use the show axrp detail
operation command to check the
multi-fault monitoring VLAN ID.
If the Control VLAN ID is set as a multi-fault monitoring VLAN ID
according to the network configuration, check the
multi-fault-monitoring device on the shared node to confirm the
timer value of the multi-fault monitoring functionality frame
sending interval and that of the hold time to determine that
multiple faults have occurred when multi-fault monitoring frames
are not received.
If any other information is displayed, check the configuration.
3.5.4 Failures when the DHCP snooping functionality is used
(1) When a DHCP client terminal cannot establish communication
If a DHCP client terminal cannot establish communication when the DHCP snooping
functionality is used, take action as described in the following table.
Table 3-18 Action to take when a DHCP client terminal cannot establish communication
No. Items to check and commands Action
1 Use the show ip dhcp snooping
binding operation command to
check whether the IP address and
MAC address for the target terminal
are registered in the binding
database.
If the addresses are registered, go to No. 4.
If the addresses are not registered, go to No. 2.