The MMRP exchanges create one entry per attribute (group B-MAC) in the B-VPLS where MMRP protocol is running. When the first registration is received for an attribute, an MFIB entry is created for it.
The Nokia implementation allows the user to control the number of MMRP attributes (group B-MACs) created on a per B-VPLS basis. Control over the number of related MFIB entries in the B-VPLS FDB is inherited from previous releases through the use of the configure service vpls mfib-table-size table-size command. This ensures that no B-VPLS takes up all the resources from the total pool.