Changing Bottleneck Parameters - HP SN3000B Administrator's Manual

Changing bottleneck parameters

When you enable bottleneck detection, you can configure switch-wide alerting and sub-second
latency criterion parameters that apply to every port on the switch. After you enable bottleneck
detection, you can change the alerting parameters on the entire switch or on individual ports. You
can change the sub-second latency criterion parameters on individual ports only. You can also
change the parameters on ports that have been excluded from bottleneck detection.
The alerting parameters indicate whether alerts are sent, and the threshold, time, and quiet time
options.
For a trunk, you can change the parameters only on the master port.
1. Connect to the switch and log in using an account with admin permissions.
2. Enter the bottleneckmon
Example
The following example disables alerts on port 1, excludes ports 2, 3, and 4 from bottleneck
monitoring, and changes the alerting parameters on ports 2 and 3. The bottleneck
command shows the settings for these ports. Note that this example changes the alerting
parameters on ports 2 and 3, even though they are excluded from bottleneck detection.
Fabric OS Administrator's Guide
53-1002446-01
criterion parameters.
Enter the bottleneckmon
sub-second latency criterion parameters and revert to the switch-wide parameters.
switch:admin> bottleneckmon --config -noalert 1
switch:admin> bottleneckmon --exclude 2-4
switch:admin> bottleneckmon --config -alert -lthresh .99 -cthresh .9 -time
4000 -qtime 600 2-3
switch:admin> bottleneckmon --status
Bottleneck detection - Enabled
==============================
Switch-wide sub-second latency bottleneck criterion:
====================================================
Time threshold
Severity threshold
Switch-wide alerting parameters:
================================
Alerts
Latency threshold for alert
Congestion threshold for alert - 0.800
Averaging time for alert
Quiet time for alert
Per-port overrides for alert parameters:
========================================
Port Alerts? LatencyThresh
================================================================
1 N --
2 Y 0.990
3 Y 0.990
Excluded ports:
===============
Port

Changing bottleneck parameters

config command to set the alerting and sub-second latency
--
configclear command to remove any port-specific alerting and
--
- 0.800
- 50.000
- Yes
- 0.100
- 300 seconds
- 300 seconds
CongestionThresh
--
0.900
0.900
status
--
Time(s) QTime(s)
-- --
4000 600
4000 600
13
305