MVRP timers
MVRP supports four types of timers:
Join Timer
Leave Timer
LeaveAll Timer
Periodic Timer
Join Timer
The Join Timer controls the transmission of Join messages. To avoid a PDU storm, an MVRP participant waits for a duration of the Join Timer after sending a join message, and ensures that all participants transmit at different times. This is a per port timer and is applicable to all applicants for the port.
mvrp join-timer
Syntax
mvrp join-timer <centiseconds>
no mvrp join-timer
Description
Sets the Join Timer for the port. You can use the timer to space MVRP join messages. To ensure that join messages are transmitted to other participants, an MVRP participant waits for a specified time before sending a join message. The Join Timer must be less than half of the Leave Timer. The default value is 20 centiseconds.
Use no mvrp join-timer to
set the interval to the default value.
Parameter
centiseconds
Set the Join Timer for the port.
Usage
mvrp join-timer <20-100>
The MVRP Join Timer ranges from 20 –100 in centiseconds.
Example output
switch(eth-1)# mvrp join-timer
<20-100> Set the join timer for the port.
switch# mvrp join-timer 40
switch# show mvrp config
Configuration and Status - MVRP
Global MVRP status : Enabled
Port Status Periodic Registration Join Leave LeaveAll Periodic
Timer Type Time Timer Timer Timer
------- -------- -------- ------------ ---- -------- -------- --------
1 Enabled Enabled Normal 40 300 1000 100
2 Disabled Enabled Normal 20 300 1000 100
3 Disabled Enabled Normal 20 300 1000 100Leave Timer
The Leave Timer controls the time duration for which the Registrar state machine waits in the LV state before changing to the MT state. The Leave Timer is started only when a leave message is received by the applicant state. The attribute is deregistered, if there are requests to join before the expiry of the Leave Timer. This is a per port timer and is applicable to all registrars for the port.
mvrp leave-timer
Syntax
mvrp leave-timer <centiseconds>
no mvrp leave-timer
Description
The Leave Timer must be at least twice the Join Timer and must be less than the LeaveAll Timer. The default value is 300 centiseconds.
Use no mvrp leave-timer to
set the interval to the default value.
Parameter
centiseconds
Set the Leave Timer for the port.
Usage
mvrp leave-timer <40-1000000>
The MVRP Leave Timer ranges from 40 –1000000 in centiseconds.
Example output
switch(eth-1)# mvrp leave-timer
<40-1000000> Set the leave timer for the port.
switch(eth-1)# mvrp leave-timer 500
switch(eth-1)# show mvrp config
Configuration and Status - MVRP
Global MVRP status : Enabled
Port Status Periodic Registration Join Leave LeaveAll Periodic
Timer Type Time Timer Timer Timer
------- -------- -------- ------------ ---- -------- -------- --------
1 Enabled Enabled Normal 40 500 1000 100
2 Disabled Enabled Normal 20 300 1000 100
3 Disabled Enabled Normal 20 300 1000 100LeaveAll Timer
The LeaveAll Timer controls the frequency with
which the LeaveAll state machine generates LeaveAll PDUs. When a LeaveAll
Timer expires, the MVRP sends out LeaveAll messages and restarts the
LeaveAll Timer. The LeaveAll Timer is set to a random value T which
ranges from LeaveAllTime < T < 1.5*LeaveAllTime,
where LeaveAll time is the configured LeaveAll time. The default value
is 1000 centiseconds. This is a per port timer.
mvrp leaveall-timer
Syntax
mvrp leaveall-timer <centiseconds>
no mvrp leaveall-timer
Description
The LeaveAll Timer is the time duration between sending LeaveAll messages. The LeaveAll Timer must be greater than the Leave Timer.
Use no mvrp leaveall-timer to
set the interval to the default value.
Parameter
centiseconds
Set the LeaveAll Timer for the port.
Usage
mvrp leaveall-timer <500-1000000>
The MVRP LeaveAll Timer ranges from 500 –1000000 in centiseconds.
Example output
switch# mvrp leaveall-timer
<500-1000000> Set the leaveall timer for the port.
switch# mvrp leaveall-timer 700
switch(eth-1)# show mvrp config
Configuration and Status - MVRP
Global MVRP status : Enabled
Port Status Periodic Registration Join Leave LeaveAll Periodic
Timer Type Time Timer Timer Timer
------- -------- -------- ------------ ---- -------- -------- --------
1 Enabled Enabled Normal 40 500 700 100
2 Disabled Enabled Normal 20 300 1000 100
3 Disabled Enabled Normal 20 300 1000 100 Periodic Timer
The Periodic Timer controls the frequency with which the periodic transmission state machine generates periodic events. This is a per port timer. On start, the Periodic Timer is set to one second. You can enable or disable the Periodic Timer. By default, it is enabled. The default value is 100 centiseconds.
mvrp periodic timer
Syntax
mvrp periodic-timer <centiseconds>
no mvrp periodic-timer
Description
Set the Periodic Timer transmission interval for the port.
Use no mvrp periodic-timer to
set the interval to the default value.
Parameters
centiseconds
Set the Periodic Timer transmission interval for the port.
Usage
mvrp periodic-timer <100-1000000>
The MVRP Periodic Timer ranges from 100 –1000000 in centiseconds.
Example output
switch(eth-1)# mvrp periodic-timer
<100-1000000> Set the periodic timer transmission interval for the port.
switch(eth-1)# mvrp periodic-timer 300
switch(eth-1)# show mvrp config
Configuration and Status - MVRP
Global MVRP status : Enabled
Port Status Periodic Registration Join Leave LeaveAll Periodic
Timer Type Time Timer Timer Timer
------- -------- -------- ------------ ---- -------- -------- --------
1 Enabled Enabled Normal 40 500 700 300
2 Disabled Enabled Normal 20 300 1000 100
3 Disabled Enabled Normal 20 300 1000 100