Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 214 of 669
ITU-T support is implemented by supporting the following features:
1. Continuity Check – is used for detecting loss of continuity between a MEP and its peer MEP(s). It can
also detect unintended connection to other MEG (Maintenance Groups), unintended connection to peer
MEP, unexpected period and more.
2. Loop back - is initiated by a MEP to check loop-back path with all peer MEPs in the group.
3. Link Trace - Described in the above section.
4. Alarm Indication Signal (AIS) - is transmitted by a 1 MEP during Signal Fail conditions. It can be used
for suppression of alarm on client layer or for protection on client layer
5. Locked Signal - is transmitted by MEP on management demand for administratively locking of a server
layer or a sub section of a flow.
6. Loss Measurement - is done between MEPs only. There can only be two MEPs in the group – this is a
flow point to point functionality. Both the near-end and the far-end loss can be calculated based of the
exchanged information between the MEP. Loss measurement is implemented for CCM based or
LMM/LMR based.
7. Delay Measurement - is done between MEP only. There can be many MEPs in the group but DM is
done between two MEP only – this is a flow point to multi-point functionality. Both the one-way and the
two-way delay + delay variation can be calculated based on the information exchanged between the
MEPs. Both One-way and Two-way Delay Measurement is implemented.
Configuration > MEP > Configuration
From the
Configuration
>
MEP
>
Configuration
menu path, click the “
Add New MEP
” button to display
the table. The Maintenance Entity Point (MEP) instances are configured here.
When you have configured and saved one or more MEP configurations, you can click on a linked
Instance (circled below) to display its MEP Configuration page.