Configuring Eaps Polling Timers - Extreme Networks ExtremeWare XOS Guide Manual

Ethernet Automatic Protection Switching

Configuring EAPS Polling Timers

To set the values of the polling timers the master node uses for the EAPS health check packet that is
circulated around the ring for an EAPS domain, use the following commands:
configure eaps <name> hellotime <seconds>
configure eaps <name> failtime <seconds>
NOTE
These commands apply only to the master node. If you configure the polling timers for a transit node, they will be
ignored. If you later reconfigure that transit node as the master node, the polling timer values will be used as the
current values.
Use the keyword and its associated
hellotime
master node waits between transmissions of health check packets on the control VLAN. The value for
must be greater than 0 when you are configuring a master node. The default value is 1 second.
seconds
NOTE
Increasing the hellotime value keeps the processor from sending and processing too many health check packets.
Use the keyword and
failtime
waits before the failtimer expires.
The parameter must be greater than the configured value for
seconds
seconds.
To configure the action taken if there is a break in the ring, use the following command:
configure eaps <name> failtime expiry-action [open-secondary-port | send-alert]
You can configure the action taken when the failtimer expires by using the
command. Use the
expiry-action
Instead of going into a "failed" state, the master node remains in a "Complete" or "Init" state, maintains
the secondary port blocking, and writes a critical error message to syslog warning the user that there is
a fault in the ring. An SNMP trap is also sent.
Use the
open-secondary-port
NOTE
Increasing the failtime value provides more protection by waiting longer to receive a health check packet when the
network is congested.
The following command examples configure the hellotime value for the EAPS domain "eaps_1" to
2 seconds, the failtimer value to 15 seconds, and the failtimer expiry-action to open the secondary port
if the failtimer expires:
configure eaps eaps_1 hellotime 2
configure eaps eaps_1 failtime 15
configure eaps eaps_1 failtimer expiry-action open-secondary-port
ExtremeWare XOS 11.1 Concepts Guide
seconds
parameters to specify the amount of time the master node
seconds
parameter to send an alert when the failtimer expires.
send-alert
parameter to open the secondary port when the failtimer expires.
parameter to specify the amount of time the
. The default value is 3
hellotime
configure eaps failtime
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