Multiple Registration Protocol (MRP), which replaced Generic Attribute Registration Protocol (GARP), is a generic registration framework defined by the IEEE 802.1ak amendment to the IEEE 802.1Q standard. MRP allows bridges, switches or other similar devices to register and de-register attribute values, such as VLAN identifiers and multicast group membership across a large local area network. MRP operates at the data link layer.
GARP was defined by the IEEE 802.1 working group to provide a generic framework allowing bridges (or other devices like switches) to register and de-register attribute values such as VLAN identifiers and multicast group membership. GARP defines the architecture, rules of operation, state machines and variables for the registration and de-registration of attribute values. GARP was used by two applications: GARP VLAN Registration Protocol (GVRP) for registering VLAN trunking between multilayer switches, and by the GARP Multicast Registration Protocol (GMRP). The latter two were both mostly enhancements for VLAN-aware switches per definition in IEEE 802.1Q.
Multiple Registration Protocol (MRP) was introduced in order to replace GARP, with the IEEE 802.1ak amendment in 2007. The two GARP applications were also modified in order to use MRP. GMRP was replaced by Multiple MAC Registration Protocol (MMRP) and GVRP was replaced by Multiple VLAN Registration Protocol (MVRP). This change essentially moved the definitions of GARP, GVRP, and GMRP into an 802.1Q based environment, implying they were already VLAN aware. This also allowed for significant streamlining of the underlying protocol without much change to the interface of the applications themselves.[1]
The new protocol and applications fixed a problem with the old GARP-based GVRP-based system, where a simple registration or a failover could take an extremely long time to converge on a large network,[2] incurring a significant bandwidth degradation.
It is expected GARP will be removed from IEEE 802.1D at some point in the future.[3]
Multiple MAC Registration Protocol
Multiple MAC Registration Protocol is a data link layer (layer 2) protocol to register group MAC addresses (i.e. multicast) on multiple switches. It is an MRP application, originally defined in IEEE 802.1ak-2007 and subsequently included in 802.1Q. It replaced the 802.1D based GMRP. The purpose of MMRP is to allow multicast traffic in bridged LANs to be confined to areas of the network where it is required.
Multiple VLAN Registration Protocol
MVRP, which replaced GVRP, is a standards-based Layer 2network protocol, for automatic configuration of VLAN information on switches. It was defined in the 802.1ak amendment to 802.1Q-2005.
Within a layer 2 network, MVRP provides a method to dynamically share VLAN information and configure the needed VLANs. For example, in order to add a switch port to a VLAN, only the end port, or the VLAN-supporting network device connected to the switchport, need be reconfigured, and all necessary VLAN trunks are dynamically created on the other MVRP-enabled switches. Without using MVRP, either a manual configuration of VLAN trunks or use of a manufacturer's proprietary method is necessary.
It is through MVRP that dynamic VLAN entries will be updated in the filtering database. In short, MVRP helps to maintain VLAN configuration dynamically based on current network configurations.
Dynamic configuration and distribution of VLAN membership information by means of the MVRP
Static configuration of VLAN membership information via management mechanisms, which allow configuration of static VLAN registration entries.
Combined static and dynamic configuration, in which some VLANs are configured via management mechanisms and for other VLANs, MVRP is relied on to establish the configuration.
MVRP defines a MRP application that provides the VLAN registration service. MVRP makes use of MRP Attribute Declaration (MAD) and MRP Attribute Propagation (MAP), which provide the common state machine descriptions and the common information propagation mechanisms defined for use in MRP-based applications. MVRP provides a mechanism for dynamic maintenance of the contents of dynamic VLAN registration entries for each VLAN, and for propagating the information they contain to other bridges. This information allows MVRP-aware devices to establish and update dynamically their knowledge of the set of VLANs that currently have active members, and through which ports those members can be reached. The main purpose of MVRP is to allow switches to automatically discover some of the VLAN information that would otherwise need to be manually configured.
Legacy GVRP details
The replaced GVRP was essentially the same thing, but it used the services of the 802.1D based GARP application. GVRP made use of GARP Information Declaration (GID) and GARP Information Propagation (GIP), which correspond to the MAP and MAD in MRP. It was defined in the original release of 802.1D-1998 until it was replaced by MVRP.
It was replaced because the non-VLAN aware GARP had serious deficiencies when operating in large VLAN networks.[2]
Multiple Stream Registration Protocol
This section needs expansion. You can help by adding to it. (August 2019)
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Multiple Registration Protocol MRP which replaced Generic Attribute Registration Protocol GARP is a generic registration framework defined by the IEEE 802 1ak amendment to the IEEE 802 1Q standard MRP allows bridges switches or other similar devices to register and de register attribute values such as VLAN identifiers and multicast group membership across a large local area network MRP operates at the data link layer Contents 1 History 2 Multiple MAC Registration Protocol 3 Multiple VLAN Registration Protocol 3 1 Legacy GVRP details 4 Multiple Stream Registration Protocol 5 See also 6 ReferencesHistory EditGARP was defined by the IEEE 802 1 working group to provide a generic framework allowing bridges or other devices like switches to register and de register attribute values such as VLAN identifiers and multicast group membership GARP defines the architecture rules of operation state machines and variables for the registration and de registration of attribute values GARP was used by two applications GARP VLAN Registration Protocol GVRP for registering VLAN trunking between multilayer switches and by the GARP Multicast Registration Protocol GMRP The latter two were both mostly enhancements for VLAN aware switches per definition in IEEE 802 1Q Multiple Registration Protocol MRP was introduced in order to replace GARP with the IEEE 802 1ak amendment in 2007 The two GARP applications were also modified in order to use MRP GMRP was replaced by Multiple MAC Registration Protocol MMRP and GVRP was replaced by Multiple VLAN Registration Protocol MVRP This change essentially moved the definitions of GARP GVRP and GMRP into an 802 1Q based environment implying they were already VLAN aware This also allowed for significant streamlining of the underlying protocol without much change to the interface of the applications themselves 1 The new protocol and applications fixed a problem with the old GARP based GVRP based system where a simple registration or a failover could take an extremely long time to converge on a large network 2 incurring a significant bandwidth degradation It is expected GARP will be removed from IEEE 802 1D at some point in the future 3 Multiple MAC Registration Protocol EditMultiple MAC Registration Protocol is a data link layer layer 2 protocol to register group MAC addresses i e multicast on multiple switches It is an MRP application originally defined in IEEE 802 1ak 2007 and subsequently included in 802 1Q It replaced the 802 1D based GMRP The purpose of MMRP is to allow multicast traffic in bridged LANs to be confined to areas of the network where it is required Multiple VLAN Registration Protocol EditMVRP which replaced GVRP is a standards based Layer 2 network protocol for automatic configuration of VLAN information on switches It was defined in the 802 1ak amendment to 802 1Q 2005 Within a layer 2 network MVRP provides a method to dynamically share VLAN information and configure the needed VLANs For example in order to add a switch port to a VLAN only the end port or the VLAN supporting network device connected to the switchport need be reconfigured and all necessary VLAN trunks are dynamically created on the other MVRP enabled switches Without using MVRP either a manual configuration of VLAN trunks or use of a manufacturer s proprietary method is necessary It is through MVRP that dynamic VLAN entries will be updated in the filtering database In short MVRP helps to maintain VLAN configuration dynamically based on current network configurations 802 1Q allows for Dynamic configuration and distribution of VLAN membership information by means of the MVRP Static configuration of VLAN membership information via management mechanisms which allow configuration of static VLAN registration entries Combined static and dynamic configuration in which some VLANs are configured via management mechanisms and for other VLANs MVRP is relied on to establish the configuration MVRP defines a MRP application that provides the VLAN registration service MVRP makes use of MRP Attribute Declaration MAD and MRP Attribute Propagation MAP which provide the common state machine descriptions and the common information propagation mechanisms defined for use in MRP based applications MVRP provides a mechanism for dynamic maintenance of the contents of dynamic VLAN registration entries for each VLAN and for propagating the information they contain to other bridges This information allows MVRP aware devices to establish and update dynamically their knowledge of the set of VLANs that currently have active members and through which ports those members can be reached The main purpose of MVRP is to allow switches to automatically discover some of the VLAN information that would otherwise need to be manually configured Legacy GVRP details Edit The replaced GVRP was essentially the same thing but it used the services of the 802 1D based GARP application GVRP made use of GARP Information Declaration GID and GARP Information Propagation GIP which correspond to the MAP and MAD in MRP It was defined in the original release of 802 1D 1998 until it was replaced by MVRP It was replaced because the non VLAN aware GARP had serious deficiencies when operating in large VLAN networks 2 Multiple Stream Registration Protocol EditThis section needs expansion You can help by adding to it August 2019 MSRP is the base for the Stream Reservation Protocol first defined in Audio Video Bridging specifications See also EditVLAN Trunking Protocol VTP a similar but proprietary protocol from CiscoReferences Edit Configuring MVRP PDF Cisco Retrieved 2015 05 15 a b 802 1ak Multiple Registration Protocol IEEE Retrieved 2010 11 17 See footnote in Annex E of IEEE 802 1ak IEEE 802 1D standard PDF IEEE 802 1Q Standard PDF IEEE 802 1ak standard PDF and its corrigendum Retrieved from https en wikipedia org w index php title Multiple Registration Protocol amp oldid 1086822414 Multiple VLAN Registration Protocol, wikipedia, wiki, book, 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