Mvrp Registration Modes - HP 3100 Series Configuration Manual

You can enable or disable the Periodic timer at the CLI. When you disable the Periodic timer,
MRP will not periodically send MRP messages, and MRP messages are sent only when the
LeaveAll timer expires or the local participant receives LeaveAll messages from a remote
participant.
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Join timer
The Join timer controls the transmission of Join messages. To make sure that Join messages
can be reliably transmitted to other participants, an MRP participant waits for a period of the
Join timer after sending a Join message. If the participant receives JoinIn messages from other
participants and the attributes in the JoinIn messages are the same as the sent Join messages
before the Join timer expires, the participant does not re-send the Join message. When both the
Join timer and the Periodic timer expire, the participant re-sends the Join message.
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Leave timer
The Leave timer controls the deregistration of attributes. When an MRP participant wishes
other participants to deregister its attributes, it sends a Leave message. On receiving a Leave
message, MRP starts the Leave timer, and deregisters the attributes if it does not receive any
Join message for the attributes before the Leave timer expires. When an MRP participant sends
or receives LeaveAll messages, it starts the Leave timer. MRP deregisters the attributes in the
LeaveAll messages if it does not receive any Join message for the attributes before the Leave
timer expires.
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LeaveAll timer
On startup, an MRP participant starts its own LeaveAll timer. When the LeaveAll timer expires,
MRP sends out a LeaveAll message and restarts the LeaveAll timer. On receiving the LeaveAll
message, other participants re-register all the attributes and re-start their LeaveAll timer.
When the LeaveAll timer of an MRP participant expires, the MRP participant sends LeaveAll
messages to the remote participants. On receiving a LeaveAll message, a remote participant
restarts its LeaveAll timer, and stops sending out LeaveAll messages. This mechanism
effectively reduces the number of LeaveAll messages in the network.
To avoid the case that the LeaveAll timer of a fixed participant always first expires, the switch
randomly changes the LeaveAll timer within a certain range when the MRP participant restarts
its LeaveAll timer.

MVRP registration modes

The VLAN information propagated by MVRP includes not only locally, manually configured static
VLAN information but also dynamic VLAN information from other devices.
VLANs created manually, locally are called "static VLANs", and VLANs learned through MVRP are
called "dynamic VLANs". The following MVRP registration modes are available.
•
Normal
An MVRP participant in normal registration mode performs dynamic VLAN registrations and
deregistrations, and sends declarations and withdrawals for dynamic and static VLANs.
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Fixed
An MVRP participant in fixed registration mode disables deregistering dynamic VLANs, sends
declarations for dynamic VLANs and static VLANs, and drops received MVRP protocol packets.
As a result, an MVRP participant port in fixed registration mode does not deregister or register
dynamic VLANs.
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Forbidden
An MVRP participant in forbidden registration mode disables registering dynamic VLANs,
sends declarations for dynamic VLANs and static VLANs, and drops received MVRP protocol
packets. As a result, an MVRP participant in forbidden registration mode does not register
dynamic VLANs, and does not re-register a dynamic VLAN when the VLAN is deregistered.
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