Filter
Top Products
DES-7200 Configuration Guide Chapter 5 RERP Configuration
5-18
5.4.2 RERP single-domain
intersecting rings
configuration example
5.4.2.1 Topological Diagram
As shown below, the convergence layer of Metropolitan Area Network accesses the
core layer in the form of ring topology. The core layer network is a ring network.
Topological diagram for RERP single-domain intersecting rings
5.4.2.2 Application Requirements
Use the appropriate Ethernet ring link protection protocol which can allow fast
convergence of the ring when it fails.
5.4.2.3 Configuration Tips
This example adopts RERP technology. The three devices at the core layer (Switch A,
Switch B and Switch C) form the RERP primary ring, while four devices at the
convergence layer (Switch B, Switch C, Switch D and Switch E) form the RERP
subring. Two rings intersect.
The control VLAN of primary ring is VLAN4091, and the control VLAN of subring is
VLAN4092. The timer uses the default value, and the roles of respective devices in the
domain are shown in the following table.
Device Role
Switch A Master of primary ring