Dell POWEREDGE M1000E User Manual

Page 387

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Fabric OS Administrator’s Guide

387

53-1002745-02

Changing bottleneck detection parameters

13

Congestion threshold for alert - 0.700
Averaging time for alert

- 200 seconds

Quiet time for alert

- 150 seconds

Per-port overrides for alert parameters:
========================================
Port

Alerts? LatencyThresh

CongestionThresh

Time (s)

QTime (s)

=================================================================================
46

N

--

--

--

--

47

L

0.750

--

200

150

Example 5: Changing the latency time value for a single port

This changes the time value to 250 seconds for port 47 only. Notice that the command must
include -alert=latency to preserve the latency-only alerts configured in the previous example.
In general, -alert must be specified (with =latency or =congestion if desired), on every --config
command when alerts are desired.

switch:admin> bottleneckmon --config -alert=latency -time 250 47
switch:admin> bottleneckmon --status
Bottleneck detection - Enabled
==============================

Switch-wide sub-second latency bottleneck criterion:
====================================================
Time threshold

- 0.800

Severity threshold

- 50.000

Switch-wide alerting parameters:
================================
Alerts

- Yes

Latency threshold for alert

- 0.200

Congestion threshold for alert - 0.700
Averaging time for alert

- 200 seconds

Quiet time for alert

- 150 seconds

Per-port overrides for alert parameters:
========================================
Port

Alerts? LatencyThresh

CongestionThresh

Time (s)

QTime (s)

=================================================================================
46

N

--

--

--

--

47

L

0.750

--

250

150

Example 6: Clearing bottleneck detection override values from ports

This removes any changed bottleneck detection parameter values from ports 46 and 47.
Notice that the “Per-port overrides for alert parameters” section is not displayed as there are no
per-port overrides.

switch:admin> bottleneckmon --configclear 46-47
switch:admin> bottleneckmon --status
Bottleneck detection - Enabled
==============================

Switch-wide sub-second latency bottleneck criterion:
====================================================
Time threshold

- 0.800

Severity threshold

- 50.000

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