Y.1731 Ethernet OAM Ethernet Operation, Administration and Management
Y.1731 MEG Definition
A Maintenance Entity Group (MEG) accounts for all MEPs from a common service or
provider. A MEG is defined according to a user assigned name (string of characters) and
VLANs comprising the MEGs.
Y.1731 MIP Definitions
A CFM Maintenance Intermediate Point (MIP) is a port which forwards CFM frames
identified by an equal or higher level and drops lower level, regardless of whether they are
received from the relay (Switch) or wire (Port) side.
MIP responds to CFM Loopback (unicast) and CFM Link Trace (multicast) messages of the
CFM Domain to which MIP belongs (identified by domain name and level in a message).
If MIPs are not configured on a device, CFM frames are forwarded on port according to
VLAN rules.
To define the domain MIPs
1. Invoke the pane of the domain whose MIPs are to be defined by doing one of the
following:
In the Network Element tree, under Service CFM, select the relevant MEG.
In the Network Element tree, select Service CFM and double-click on the defined
MEG.
2. In the MEG pane, MIPs area, the currently defined MIPs for the selected domain are
displayed. To add or modify the defined MIPs, click the Edit MIPs button. The
following dialog appears.
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