Mirroring And Lawful Intercept Considerations; Support Service And Solution Combinations; Lag Emulation Using Ethernet Tunnels - Alcatel-Lucent 7750 SR Manual

Mirroring and Lawful Intercept Considerations

Mirroring and Lawful Intercept (LI) cannot use the eth-tunnel as a source. Also, a SAP configured
on an eth-tunnel cannot be used as mirror destination. The CLI blocks the above options. The
SAP configured on the eth-tunnel, a filter associated with it and the member ports in the eth-
tunnel> path context can be used as mirror and LI source.

Support Service and Solution Combinations

The Ethernet tunnels are supported Layer 2 service VLL, VPLS and B-VPLS instances. The
following considerations apply:
•
•
•
•
•
•
•

LAG Emulation using Ethernet Tunnels

Ethernet Tunnels can provide G.8031 Ethernet APS protection as described in G.8031 Protected
Ethernet Tunnels, or they can operate in a load-sharing manner providing an emulated LAG
function. Moreover, as multiple Ethernet Tunnels can be provisioned on the same physical link(s),
it is possible that two physical links could support one or more Ethernet Tunnels supporting APS
protection for protected services whilst concurrently supporting one or more Ethernet Tunnels in
load-sharing mode for non-protected services.
When Ethernet Tunnels have the protection type set to load-sharing, the precedence is configured
to secondary, making the tunnels equal in order to implement load-sharing capability. A path
7750 SR OS Services Guide
Only ports in access or hybrid mode can be configured as eth-tunnel path members. The
member ports can be located on the same or different IOMs or MDAs.
Dot1q and QinQ ports are supported as eth-tunnel path members.
The same port cannot be used as member in both a LAG and an Ethernet Tunnel but LAG
emulation is supported.
A mix of regular and multiple eth-tunnel SAPs and PWs can be configured in the same
services.
Split horizon groups in VPLS and BVPLS are supported on eth-tunnel SAPs. The use of
split horizon groups allows the emulation of a VPLS model over the native Ethernet core,
eliminating the need for P-MSTP.
LAG Emulation offers another method offering MSTP or P-MSTP over Ethernet Tunnels.
MC-LAG access multi-homing into services is supported in combination with Ethernet
tunnels.
Services
Page 59