Administrator Guide

• The trigger threshold specifies the percentage of total bundle bandwidth used to issue an alarm for uneven traffic distribution. The
default is 60 percent. When the mean link utilization is below this value, uneven link-bundle traffic is not reported.
The difference in utilization percentage between the high-used link and low-used link determines the alarm condition. Alarm reporting
for link-bundle monitoring is based on the same algorithm used for LAG/ECMP. An alarm condition occurs when the unevenness in
link-bundle utilization exceeds 10 percent of the configured threshold and remains active until traffic on member links falls below the
trigger threshold. If unevenness is recorded for three consecutive measurements, an alarm event is generated. The rate interval
defines the time interval between measurements.
Enabling HiGig Link-Bundle Monitoring
To enable the monitoring of HiGig link bundles, follow these steps.
1. Enable the monitoring of traffic distribution on the member links in a HiGig link bundle (port-channel).
CONFIGURATION mode
Dell(conf)#hg-link-bundle-monitor {sfm npu-id hg-port—channel hg-port—channel-id | slot slot
npuUnit npu-id hg-port—channel 0} enable
2. Specify the trigger threshold for HiGig link-bundle monitoring.
CONFIGURATION mode
Dell(conf)#hg-link-bundle-monitor trigger-threshold percentage
3. Specify the interval (in seconds) when HiGig link-bundle monitoring is performed.
CONFIGURATION mode
Dell(conf)#hg-link-bundle-monitor rate-interval seconds
4. Enable SNMP trap generation for HiGig link-bundle monitoring.
CONFIGURATION mode
Dell(conf)#snmp-server enable traps hg-lbm
5. Display the traffic utilization of member links in a HiGig link bundle (port channel).
EXEC, EXEC Privilege modes
Dell#show hg-link-bundle-distribution {sfm npu-id hg-port—channel hg-port—channel-id | slot
slot npuUnit npu-id hg-port—channel 0}
Non Dell-Qualified Transceivers
The system supports Dell-qualified transceivers and only some of the non Dell-qualified transceivers.
The system supports the following cables and adapters:
• DAC cables
• AOC cables
• AOC fan-out cables
• DAC fan-out cables
• 40G fiber breakout cables
• 10G AOC and DAC cables
• 1G optics
• QSA
If you use any of the cables or adapters in the preceding list that is not Dell-qualified, the Dell Networking OS detects it and makes it
operational. The system displays a syslog message similar to the following:
Apr 29 05:09:16: %S4048-ON:1 %IFAGT-5-UNSUP_OPTICS: Non-qualified optics in slot 1 port 49
The system supports the following types of transceivers only if they are Dell-qualified:
• LR4
• SR4
• LM4
• PSM4
• PSM4-LR
Interfaces
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