ETH-CFM (802.1ag and Y.1731)
Page 68 7705 SAR OS Services Guide
The MEG-ID value has exactly 13 characters and consists of two subfields, the ITU Carrier
Code (ICC) followed by a Unique MEG-ID Code (UMC). The ITU Carrier Code consists of
between 1 and 6 left-justified characters (alphabetic or leading alphabetic with trailing
numeric). The UMC code immediately follows the ICC and consists of between 7 and 12
characters, with trailing NULLs (if necessary to complete the 13 characters).
The UMC is the responsibility of the organization to which the ICC has been assigned,
provided that uniqueness is guaranteed.
Figure 12: ICC-based MEG-ID Format
20848
MEG ID value [1]
MEG ID Format (13)
MEG ID Format (32)
Reserved (01)
8 7 6 5 4 3 2 1
1
2
3
4
5
17
18
19
20
47
48
0
MEG ID value [2]0
MEG ID value [12]0
MEG ID value [13]0
Unused (all ZEROs)
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