Backbone VPLS ('bVpls') refers to the B-Component instance
of the Provider Backbone Bridging (PBB/IEEE 802.1ah)
feature. It represents the Multi-point tunneling component
that multiplexes multiple Customer VPNs (ISIDs) together.
It is similar to a regular VPLS instance that operates
on the Backbone MAC addresses.
ISID VPLS ('iVpls') or I-VPLS refers to the I-Component
instance of the Provider Backbone Bridging (PBB/IEEE
802.1ah) feature. It identifies the specific VPN entity
associated to a customer Multipoint (ELAN) service. It is
similar to a regular VPLS instance that operates on the
Customer MAC addresses.
The value of the object svcVplsType specifies the VPLS
service type. The value of this object must be specified
when the row is created and cannot be changed while the
svcRowStatus is 'active'.