Figure 110: G.8031 P2P Tunnels And Lag-Like Loadsharing Co-Existence - Alcatel-Lucent 7750 SR Manual

Path failover is controlled by an Ethernet protection module, based on standard G.8031 Ethernet
Protection Switching. The Alcatel-Lucent implementation of Ethernet protection switching
supports only the 1:1 model which is common practice for packet based services since it makes
better use of available bandwidth. The following additional functions are provided by the
protection module:
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The secondary path requires a MEP to exchange the G.8031 APS PDUs. The following Ethernet
CFM configuration in the eth-tunnel>path>eth-cfm>mep context can be used to enable the
G.8031 protection without activating the Ethernet CCMs:
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If a MEP is required for troubleshooting issues on the primary path, the configuration described
above for the secondary path must be used to enable the use of Link Layer OAM on the primary
path.
LAG loadsharing is offered to complement G.8031 protected Ethernet tunnels for situations where
unprotected VLAN services are to be offered on some or all of the same native Ethernet links.

Figure 110: G.8031 p2p Tunnels and LAG-Like Loadsharing Co-Existence

7750 SR OS Services Guide
Synchronization between BEBs such that both send and receive on the same Ethernet path
in stable state.
Revertive / non-revertive choices.
Compliant G.8031 control plane.
Create the domain (MD) in CFM
Create the association (MA) in CFM. NOTE: Do not put remote MEPs.
Create the MEP
Configure control-mep and no shutdown on the MEP
The CCM transmission should stay disabled using the no ccm-enable command.
Virtual Private LAN Services
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