Canoga-perkins 9145E NID Software Version 4.10 Manuel d'utilisateur télécharger pdf (Page 214)

9145E NID Software User’s Manual Service OAM

Service OAM

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Table 11-1. SOAM protocol support for 802.1ag and Y.1731

11.1.5 Typical Service OAM Deployment and Applications

The application shown in Figure 11-3 is an example of a service provider network consisting of

two Metro Ethernet Networks (MEN), MEN-A and MEN-B, interconnected at an NNI interface.

The 9145E, located in the customer premises, provides the demarcation between the customer

and the service provider networks. When SOAM fault monitoring is used, the network can be

portioned into multiple hierarchical domains that allow better isolation of faults in the network.

Every domain has some administrative boundaries.

For example the topology described in Figure 11-3 contains four hierarchical domains. At the

lowest level (MD1) three distinct domains are monitoring point-to-point UNI and NNI links. Two

Level 4 domains (MD4), MEN A and MEN B, are monitoring the end-to-end connectivity inside

each Metro Ethernet Network in the topology. The service provider monitors its end-to-end

service via a level 5 domain (MD5), while the subscriber uses a level 6 domain for customer-level

monitoring.

The SOAM levels used by different organizations are decided based on administrative

recommendations.

Feature

802.1ag Y.1731

Continuity check Yes Yes

Connectivity Fault Management

Loopback

Unicast

Multicast

Sweep

Yes

N/A

Yes

Linktrace Yes Yes

AIS N/A Yes

RDI Yes Yes

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Canoga-perkins 9145E NID Software Version 4.10 Manuel d'utilisateur Page 214