Extreme Networks ExtremeWare 7.7, Command Reference Manual

Page: 1540 / 2620

1540 ExtremeWare 7.7 Command Reference Guide
ESRP Commands
configure vlan esrp elrp-premaster-poll enable
configure vlan <vlan name> esrp elrp-premaster-poll enable {count <number>
| interval <seconds>}
Description
Enables the use of ELRP by ESRP in the pre-master state, and configures how many times the switch
sends ELRP PDUs and how often the switch sends ELRP PDUS in the pre-master state.
Syntax Description
Default
• Use of ELRP in the pre-master state—disabled
• Count—3 times
• Interval—1 second
Usage Guidelines
Use this command to enable the use of ELRP by ESRP in the pre-master state to prevent network loops
from occurring. When an ESRP-enabled switch is in the pre-master state (waiting to become the master),
and you enable elrp-premaster-poll, the switch periodically sends ELRP PDUs at the configure level for
a specified number of times. If there is a loop in the network, the transmitted PDUs are received by the
switch. If this happens, the ESRP pre-master switch does not transition to the master state; rather, the
switch transitions to the slave state.
If you do not specify the optional
count
or
interval
parameters, the default values are used.
If no packets are received by the sender, there is no loop in the network.
Example
The following command enables the use of ELRP in the pre-master state on the ESRP-enabled VLAN
elrp1
:
configure vlan elrp1 esrp elrp-premaster poll enable
History
This command was first available in ExtremeWare 6.2.2b134.
This command was not supported in ExtremeWare 7.0.
This command is supported in ExtremeWare 7.1.0.
vlan name Specifies an ESRP-enabled VLAN name.
number Specifies the number of times the switch sends ELRP PDUs. The default is 3.
The range is 1to 32.
seconds Specifies how often, in seconds, the ELRP PDUs are sent. The default is 1
second. The range is 1 to 32 seconds.