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DES-7200 Configuration Guide Chapter 5 RERP Configuration
5-7
z With intersected rings configured, the failure interval of the sub-ring must be more
than the one of the main-ring. It is necessary to set the failure interval of the
sub-ring twice as the main-ring.
z To prevent the loop interruption during the process of configuration modification,
you shall shutdown one of the RERP port in this ring and use the no shutdown
command when modifying the RERP configurations of a ring.
z After the RERP port is enabled, it is set as the trunk port automatically, and the
native VLAN is set as the control VLAN in the corresponding ring automatically.
The modification of trunk and native VLAN attribute for the RERP port is
prohibited. After the RERP port is disabled, it is still trunk port and the native
VLAN restores to 1.
z After adding the AP port to the RERP ring, the operation of adding AP members to
the AP port, removing AP members and AP port can not be implemented. The AP
port shall exit from the RERP ring to execute the above operation.
z Fail to enable IGMP Snooping on the device with RERP enabled. Or the RERP
cannot work normally.
5.2.2 Configuring RERP Globally
The protocol messages can be processed normally when the global RERP is enabled.
In the global configuration mode, follow these steps to enable RERP:
Command Function
DES-7200(config)# rerp enable
Turn on the global RERP function switch.
DES-7200(config)# end
Return to the privileged mode.
The no option of the command turns off the global RERP.
Note
After setting primary and secondary ports, the port forwarding status is
controlled no matter whether RERP global switch is turned on. For
example, when RERP is disabled, the slave port of master will still in
the blocked status to prevent the rings due to parameter configuration
error.
5.2.3 Configuring RERP Detection
Interval
The Master needs to send the RERP detection message on regular basis to check the
health conditions of the loop. In the configuration mode, follows these steps to set the
RERP detection interval:
Command Function