Services Overview
7705 SAR OS Services Guide Page 69
ETH-CFM Functions and Tests
The following list of ETH-CFM functions applies to both dot1ag and Y.1731 Ethernet
OAM:
• ETH-CFM — ETH-CFM can be enabled or disabled on a SAP or spoke SDP
• MD levels — eight MD levels can be assigned
• MD name — the following MD name formats are supported:
→ none (no MD name; used for specifying a Y.1731 functionality)
→ DNS name
→ MAC address and 2-octet integer
→ character string
• MAs — MAs for each MD level can be configured, modified, or deleted
→ each MA is defined by a unique combination of MD index, MD level, and MA
index. This unique combination of values is called the MA identifier (MA-ID).
→ the following MA name formats are supported:
- primary VLAN ID (VID)
- character string
- 2-octet integer
- RFC 2685, Virtual Private Networks Identifier
- icc-based (used for specifying a Y.1731 functionality)
→ when a VID is used as the MA name, CFM will not support VLAN translation
because the unique MA-ID must match all the MEPs
→ the default format for an MA name is a 2-octet integer; integer value 0 means
that the MA is not attached to a VID
• MEPs — Up and Down MEPs on a SAP, and Down MEPs on a spoke SDP
- MEPs can be configured, modified, or deleted for each MD level (both
associations for the Up or Down MEP are with the same Bridge Port; as
described in Section 19.2.1 of IEEE Standard 802.1ag-2007)
- each MEP is uniquely identified by its MEP identifier and MA-ID
combination
• MEP creation — MEP creation on a SAP is allowed only for Ethernet ports (with
null or q-tag encapsulations)
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