Reference Guide

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% 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 time interval between measurements is defined by the rate interval.
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}
Fanning out 40G Ports Dynamically
Splitting QSFP Ports to SFP+ Ports
The Z9500 supports splitting a single 40G QSFP port into four 10G SFP+ ports without reload using a supported breakout cable.
(For the link to a list of supported cables, refer to the Z9500 Installation Guide or the Z9500 Release Notes).
To split a single 40G port into four 10G ports, use the following command.
● Split a single 40G port into 4-10G ports.
CONFIGURATION mode
linecard {0–2} port {0–188} portmode quad
○ The range of Z9500 line-card numbers is 0 to 2.
○ The range of port numbers on a 40G port to be split is 0 to 188.
To verify port splitting, use the show system linecard {0–2} fanout {count | configure} command.
● The quad port must be in a default configuration before you can split it into 4x10G ports. The 40G port is lost in the
configuration when the port is split; be sure that the port is also removed from other L2/L3 feature configurations.
Interfaces
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