Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 178)

128 Brocade 6910 Ethernet Access Switch Configuration Guide
53-1002581-01
Remote Monitoring Commands
7
rmon alarm
This command sets threshold bounds for a monitored variable. Use the no form to remove an
alarm.
Syntax
rmon alarm index variable interval {absolute | delta}
rising-threshold threshold [event-index] falling-threshold threshold [event-index]
[owner name]
no rmon alarm index
index – Index to this entry. (Range: 1-65535)
variable – The object identifier of the MIB variable to be sampled. Only variables of the
type etherStatsEntry.n.n may be sampled. Note that etherStatsEntry.n uniquely defines
the MIB variable, and etherStatsEntry.n.n defines the MIB variable, plus the
etherStatsIndex. For example, 1.3.6.1.2.1.16.1.1.1.6.1 denotes etherStatsBroadcastPkts,
plus the etherStatsIndex of 1.
interval – The polling interval. (Range: 1-31622400 seconds)
absolute – The variable is compared directly to the thresholds at the end of the sampling
period.
delta – The last sample is subtracted from the current value and the difference is then
compared to the thresholds.
threshold – An alarm threshold for the sampled variable.
(Range: 0-2147483647)
event-index – The index of the event to use if an alarm is triggered. If there is no
corresponding entry in the event control table, then no event will be generated.
(Range: 1-65535)
name – Name of the person who created this entry. (Range: 1-127 characters)
Default Setting
1.3.6.1.2.1.16.1.1.1.6.1 - 1.3.6.1.2.1.16.1.1.1.6.12
Taking delta samples every 30 seconds,
Rising threshold is 892800, assigned to event 0
Falling threshold is 446400, assigned to event 0
Command Mode
Global Configuration
Command Usage
• If an event is already defined for an index, the entry must be deleted before any changes can
be made with this command.
• If the current value is greater than or equal to the rising threshold, and the last sample value
was less than this threshold, then an alarm will be generated. After a rising event has been
generated, another such event will not be generated until the sampled value has fallen below
the rising threshold, reaches the falling threshold, and again moves back up to the rising
threshold.