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DES-7200 Configuration Guide Chapter 5 RERP Configuration
5-27
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region 1
ring : 2
rerp oper hello interval : 1
rerp oper fail interval : 6
ring master : 00d0.f822.3416
ctrl-vlan : 4092
edge-vlan :
role : master
primary-port : GigabitEthernet 0/1(forwarding)
secondary-port : GigabitEthernet 0/2(blocked)
From the above information, we can learn that the state of primary and secondary
ports of subring master remains unchanged. The primary ring provides two backup
links for the subring. When the public link fails, the subring can transmit data through
another link provided by the primary ring. Therefore, there is no need to change the
state of subring master.
Step 4: Restore the link between SwitchB and SwitchC and disconnect the link
between SwitchC and SwitchE (simulating that the non-public link on subring is failed),
and then verify the RERP configurations on Master device of subring; key point: the
state of primary and secondary ports of SwitchD.
SwitchD#show rerp
rerp state : enable
rerp admin hello interval: 1(*1s)
rerp admin fail interval : 6(*1s)
rerp local bridge : 00d0.f822.3416
-----------------------------------
region 1
ring : 2
rerp oper hello interval : 1
rerp oper fail interval : 6
ring master : 00d0.f822.3416
ctrl-vlan : 4092
edge-vlan :
role : master
primary-port : GigabitEthernet 0/1(forwarding)
secondary-port : GigabitEthernet 0/2(forwarding)
5.4.2.6 Notes for RERP configuration
1. Each ring can have only one Master (master device).
2. Each ring can have only one Backup (backup device), or no backup device.