Service multiplexing reduces the CAPEX associated with deploying services because it
reduces the physical equipment costs. One or fewer physical interfaces are required instead
of many; likewise, this reduces the amount of ancillary equipment needed, such as cables.
It also reduces the OPEX by enabling quick and remote provisioning of new services.
Bundling The bundling service attribute allows two or more CE VLAN IDs to be
mapped to a single EVC at a UNI. These VLANs and the mapping specifics (i.e., which
Carrier Ethernet 69
VLANs map to which EVCs) should be agreed to by the end user and the service provider.
A special case of bundling, all to one bundling, is enabled when all the VLAN IDs
at a UNI are mapped to a single EVC.
Security Filters Security filters enable filtering of undesirable Ethernet frames to
maintain security or traffic management. A very plausible case is one wherein a enduser
subscriber wants only Ethernet frames originating from specific known sources
(identified by the source MAC addresses) to be granted access; any other frames would
be considered spurious and dropped, and the user alerted. This is akin to simple Access
Control Lists (ACLs) at a UNI.
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