Users Guide

1644 Multiple Registration Protocol
MRP propagates the attribute registrations throughout the AVB network.
AVB network participants are aware of all other participants and their
attribute registrations. VLAN bridges that do not support MRP forward
received MRPDUs on all ports that are in forwarding state.
MRP implements as many MRP Attribute Protocol (MAP) contexts as there
are MSTP instances. Within each MAP context, one participant is created for
each bridge port and for each MRP application (MMRP, MSRP or MVRP).
The AVB protocol family implements the following attributes:
MVRP
MVRP provides a mechanism for the declaration of dynamic registration of
VLANs and propagation of VLAN information over a bridged network. The
propagation of VLAN information via MRP allows MVRP-aware devices to
dynamically establish and update the set of VLANs that are active on network
devices and the ports through which those devices can be reached.
With MVRP both end stations and bridges may issue and revoke VLAN
membership declarations. The effect of issuing such declaration is that each
MVRP Participant that receives the declaration will create or update a
dynamic VLAN Registration entry in the Filtering Database to indicate
whether that VLAN is registered on the reception Port.
The MVRP protocol serves end stations that want to exchange data across the
network with the specific VID. MVRP guarantees that the required VID will
be present on all MVRP-aware devices on the path from one station to
another without any manual configuration required. An MVRP request from
a device (end station or bridge) means that the device wants to receive traffic
on the requested VID. If the data flow is bidirectional, then each end station
desiring the flow must issue the same MVRP request.
Receiving the MVRP request for a specific VID on a port of the bridge
implies:
• The requested VLAN is dynamically added to the bridge’s Dynamic VLAN
Registration Entries table.
Protocol Attribute
MVRP A VLAN identifier
MMRP A VLAN MAC address association