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Upon receiving the LeaveAll message, other participants restart their LeaveAll timer. The value of
the LeaveAll timer is randomly selected between the LeaveAll timer and 1.5 times the LeaveAll timer.
This mechanism provides the following benefits:
•
Effectively reduces the number of LeaveAll messages in the network.
•
Prevents the LeaveAll timer of a particular participant from always expiring first.
MVRP registration modes
VLAN information propagated by MVRP includes dynamic VLAN information from other devices and
local static VLAN information.
MVRP has the following registration modes, which process dynamic VLANs in different ways.
Normal
An MVRP participant in normal registration mode registers and deregisters dynamic VLANs.
Fixed
An MVRP participant in fixed registration mode disables deregistering dynamic VLANs and drops
received MVRP frames. The MVRP participant does not deregister dynamic VLANs or register new
dynamic VLANs.
Forbidden
An MVRP participant in forbidden registration mode disables registering dynamic VLANs and drops
received MVRP frames. The MVRP participant does not register new dynamic VLANs or re-register
a deregistered dynamic VLAN.
Protocols and standards
IEEE 802.1ak
IEEE Standard for Local and Metropolitan Area Networks: Virtual Bridged Local Area
Networks – Amendment 07: Multiple Registration Protocol
MVRP configuration task list
Tasks at a glance
(Required.)
(Optional.)
Setting an MVRP registration mode
(Optional.)
(Optional.)
Configuration restrictions and guidelines
When you configure MVRP, follow these restrictions and guidelines:
•
MVRP can work with STP, RSTP, or MSTP. MVRP cannot work with other link layer topology
protocols, including service loopback, PVST, RRPP, and Smart Link. Ports blocked by STP,
RSTP, or MSTP can receive and send MVRP frames.
For more information about STP, RSTP, MSTP, and PVST, see "
."
For more information about service loopback, see "
Configuring service loopback groups
."
