Figure 291: Managing A Cluster Member; Ethernet Ring Protection Switching - Edge-Core ECS4620-28T Quick Start Manual

Ethernet Ring Protection Switching

Web Interface
To manage a cluster member:
1.
Click Administration, Cluster.
2.
Select Show Member from the Step list.
3.
Select an entry from the Cluster Member List.
4.
Click Operate.

Figure 291: Managing a Cluster Member

Note: Information in this section is based on ITU-T G.8032/Y.1344.
The ITU G.8032 recommendation specifies a protection switching mechanism and
protocol for Ethernet layer network rings. Ethernet rings can provide wide-area
multipoint connectivity more economically due to their reduced number of links.
The mechanisms and protocol defined in G.8032 achieve highly reliable and stable
protection; and never form loops, which would fatally affect network operation and
service availability.
The G.8032 recommendation, also referred to as Ethernet Ring Protection
Switching (ERPS), can be used to increase the availability and robustness of
Ethernet rings. An Ethernet ring built using ERPS can provide resilience at a lower
cost and than that provided by SONET or EAPS rings.
ERPS is more economical than EAPS in that only one physical link is required
between each node in the ring. However, since it can tolerate only one break in the
ring, it is not as robust as EAPS. ERPS supports up to 255 nodes in the ring structure.
ERPS requires a higher convergence time when more that 16 nodes are used, but
should always run under than 500 ms.
Chapter 13
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| Basic Administration Protocols
Ethernet Ring Protection Switching