System Interface - Alcatel-Lucent 7705 Configuration Manual

Facility MEPs are created in the same way as service MEPs, by configuring the ETH-CFM
domain and association. However, the association used to build the facility MEP does not
include a bridge identifier, as the facility MEP is not bound to a service. The CLI ensures that
a bridge identifier is not configured when the association is applied to a facility MEP.
The following applies to facility MEPs on network interfaces:
Network interface facility MEPs are supported on all network Ethernet ports on the
7705 SAR adapter cards and chassis.
For detailed information on ETH-CFM entities and on ETH-CFM support for services, refer
to the 7705 SAR OS Services Guide, "ETH-CFM (802.1ag and Y.1731)". For information on
running Ethernet OAM tests, refer to the 7705 SAR OS OAM and Diagnostics Guide, "ETH-
CFM (802.1ag and Y.1731)".

System Interface

The system interface is associated with the node, not a specific interface. It is used during the
configuration of the following entities:
The system interface is also referred to as the loopback interface. It is used as the router
identifier if a router ID has not been explicitly configured. Additional loopback interfaces can
be configured; however, the system interface is a special loopback interface.
7705 SAR OS Router Configuration Guide
• the MEP must be a Down MEP
• the port must be in network mode
• the port must be configured for null or dot1q encapsulation
• the MEP supports all fault management functionality, with the exception of alarm
indication signaling (AIS)
• the MEP supports all performance monitoring functionality including synthetic loss
measurement (SLM)
• the MEP supports throughput measurement via loopback messaging at wire speed
• received CFM messages are processed only when the VLAN ID, the MAC
destination address, and the MEP level matches those of the MEP
• LSP creation (next hop) — when configuring MPLS paths and LSPs
• the addresses on a target router — to set up an LDP, OSPF, or BGP session between
neighbors and to configure SDPs (the system interface is the service tunnel endpoint)
IP Router Configuration
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