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DES-7200 Configuration Guide Chapter 5 RERP Configuration
5-28
3. The port joining RERP ring must be a Trunk port operating in full duplex mode.
During practical application, we also need to configure the Control VLAN as the
Native VLAN of Trunk port.
4. The primary and secondary ports of RERP do not support layer-3 interface or
member port of AggregatePort. In addition, if the primary and secondary ports are
further configured as routed ports or Aggregate member ports, the primary and
secondary member ports will be removed.
5. Control VLAN is the VLAN specially used to exchange RERP information. For the
security of ring network, the control VLAN must be a VLAN not created on the
device, so as to avoid potential malicious attacks from outside network. The
control VLAN cannot be configured to VLAN1 and VLAN4094.
6. Devices on the same RERP ring have the same Region ID, Ring ID and Control
VLAN.
7. During actual configuration, the subring edge device or secondary-edge device
must not be the master device of primary ring, namely the master device of
primary ring must not be deployed on the intersecting point of two rings. If you
configure the edge device as the master of primary ring and if its secondary port is
connected to the public link, the public link will be blocked while the ring is
complete.
8. In the circumstance of intersecting rings, the timeout interval of subring must be
two times greater than the timeout interval of primary ring.
9. While modifying RERP configurations, you must first shut down a RERP port of
one device on the ring to avoid a loop during this process, and then "no shutdown"
this port after completing the modification.