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10 / 17

CC (Continuity Check) - 1

ITU-T Customer

Equipment 1

2

Operator A Bridges

3

4

5

Operator B Bridges

6

7

8

Customer Equipment

9

CC frames

ETH

ETH or SRV

MEP

MIP

  • MEP transmits CC frames periodically.

  • If a MEP does not receive any CC frames for 3.5 times of the CC frame

transmission interval, it declares an alarm (loss of connectivity)

ITU-T Workshop “NGN and its Transport Networks“ Kobe, 20-21 April 2006

10

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