VeEX RXT-6000e, User Manual

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OAM - Service Level OAM (Page 1)
Service Level OAM Configuration Parameters
MD Name: Name of the Maintenance Domain (only for 802.1ag)
MA Name: Enter the name of the 802.1ag MA or Y.1731 MG
MD Level: Maintenance domain level (0 to 7)
MEP ID: End point identifier (1 to 8191)
Primary VLAN ID: VLAN ID associated with the MA or MEG
Direction
Up: Inward facing MEP used for MA/MEG with a wider reach (i.e., end-to-end, beyond a single link)
Down: Outward facing MEP used for MA/MEG spanning a single link
Destination MEP ID: MEP ID of the MEP end point
Differences between 802.1ag and Y.1731
Selecting 802.1ag enables Continuity Check Messages (CCM), Loopback Message (LBM)
and Link Trace Message (LTM). ITU-T Y.1731 provides all of the 802.1ag functionality
with additional performance monitoring capabilities including Frame Loss (LM), and
Delay (DM).
IEEE 802.1ag Definitions
Maintenance Domain (MD) : Management space on a network that is owned and operated by a single network
provider. There is a maintenance level (from 0 to 7) to define the hierarchical relationship between domains.
Maintenance domains can be nested but never intersect. MD is defined by Operational or Contractual Boundaries
(e.g., Customer/Service Provider/Operator).
Maintenance Association (MA): Association of Maintenance. Elements that comprise the Maintenance domain.
Maintenance Elements can either be MEPs (End points) or MIPs (Intermediate Points)
MEPs are at the edge of the network. They can generate and respond to OAM messages. A point-to-point EVC
has only 2 MEPs, a multi-point EVC has multiple MEPs.
MIPs are located between the MEPs and can be used to isolate network problems. MIPs cannot generate OAM
messages but can respond.
Maintenance Level: Identifies the network hierarchy. Higher Level = Largest network. Level information present in
all OAM PDU frames.
Level 0,1,2 = Operator domain
Level 3,4 = Service Provider domain
Level 5,6,7 = Customer domain
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