User's Manual

Table Of Contents
279
Users Manual of CS-6306R
27.1.2 Basic Concepts of MEAPS
27.1.2.1 Domain
The domain specifies the protection range of the Ethernet loopback protection protocol and is marked by ID,
which consists of integers; A group of switches that support the same protection data and have the same
control VLAN can form a domain after they are connected with each other. One domain may include only one
ring or multiple rings that intersect each other. See the following figure.
One MEAPS domain has the following factors: MEAPS ring, control VLAN, master node, transit node, edge
node and assistant edge node.
Figure 2: Simple MEAPS model
27.1.2.2 Ring
One ring corresponds to an ring Ethernet topology physically, which is a group of switches that are connected
each other into a ring. One MEAPS domain may include only one MEAPS ring or multiple rings that intersect
each other.
27.1.2.3 Major Ring
When a domain includes many rings, you should choose one ring from them as a major ring. The primary and
secondary ports of each node on the major ring should be added into the main control VLAN and the sub
control VLAN at the same time. See the following figure.
27.1.2.4 Sub Ring
When a domain includes many rings, the included rings except the major ring are called as sub rings. The
primary and secondary ports of each node on the sub ring should be added into the sub control VLAN. See
the following figure.
27.1.2.5 Control VLAN
The control VLAN is a concept against the data VLAN, and in MEAPS, the control VLAN is just used to