Configuring Standalone Elrp - Extreme Networks ExtremeWare XOS Guide Manual

Request periodic or non-periodic transmission of ELRP packets on specified ports of a VLAN.
●
For non-periodic ELRP requests:
You can specify the number of times ELRP packets must be transmitted and the interval between
●
consecutive transmissions.
A message is printed to the console and logged into the system log file indicating detection of
●
network loop when ELRP packets are received back or no packets are received within the
specified duration.
There is no need to trap to the SNMP manager.
●
For periodic ELRP requests:
If ELRP packets are received back, a message is printed to the system log file and a trap is sent to
●
the SNMP manager indicating detection of a network loop.

Configuring Standalone ELRP

This section describes configuring ELRP packet transmission to detect network loops.
The ELRP client (standalone ELRP) must be enabled globally in order for it to work on any VLANs. To
globally enable the ELRP client use the following command:
enable elrp-client
The ELRP client can be disabled globally so that none of the ELRP VLAN configurations take effect. Use
the following command to globally disable the ELRP client:
disable elrp-client
To start one-time, non-periodic ELRP packet transmission on specified ports of a VLAN using a
particular count and interval, use one of the following commands:
●
configure elrp-client one-shot <vlan_name> ports [<ports> | all] interval <sec>
retry <count> [log | print | print-and-log]
Extreme Networks switches running the ExtremeWare software.)
●
run elrp <vlan_name> {ports <ports>} {interval <sec>} {retry <count>}
These commands start one-time, non-periodic ELRP packet transmission on the specified ports of the
VLAN using the specified count and interval. If any of these transmitted packets is returned, indicating
loopback detection, the ELRP client can perform a configured action such as logging a message in the
system log file or printing a log message to the console. There is no need to trap to the SNMP manager
for non-periodic requests.
To start periodic ELRP packet transmission on specified ports of a VLAN using a particular interval, use
one of the following commands:
configure elrp-client periodic <vlan_name> ports [<ports> | all] interval <sec> [log |
log-and-trap | trap]
This command starts periodic ELRP packet transmission on the specified ports of the VLAN using the
specified interval. If any of these transmitted packets is returned, indicating loopback detection, the
ELRP client can perform a configured action such as logging a message in the system log file and/or
sending a trap to the SNMP manager.
To disable a pending one-shot or periodic ELRP request for a specified VLAN use the following
command:
unconfigure elrp-client <vlan_name>
ExtremeWare XOS 11.1 Concepts Guide
Using Standalone ELRP to Perform Loop Tests
—(This command is backward compatible with
441