Reference Guide

Displaying Traffic Statistics on HiGig Ports
You can verify the buffer usage and queue counters for high-Gigabit Ethernet (HiGig) ports and link bundles (port channels).
The buffer counters supported for front-end ports are extended to HiGig backplane ports.
You can display the queue statistics and buffer counters for backplane line-card (leaf) and switch fabric module (SFM - spine)
NPU port queues on a Z9500 switch using the show commands described in this section. Transmit, receive, and drop counters
are displayed. Buffer counters include the total number of cells currently used by all queues on all ports in a port pipe.
The f10-bp-stats.mib is used for gathering statistics about backplane HiGig ports. Line-card NPUs range from 0 to 3; SFM NPUs
range from 0 to 5.
In an NPU unit, port numbering of HiGig ports starts from the last front-end I/O port number used.
Use the show hardware sfm hg-stats and show hardware linecard hg-stats commands to display traffic
statistics about the HiGig links on a line-card or SFM NPU.
Use the clear hardware sfm hg-stats and clear hardware linecard hg-stats commands to reset HiGig port
statistics.
Link Bundle Monitoring
Monitoring linked LAG bundles allows traffic distribution amounts in a link to be monitored for unfair distribution at any given
time. A threshold of 60% is defined as an acceptable amount of traffic on a member link.
Links are monitored in 15-second intervals for three consecutive instances. Any deviation within that time sends Syslog and an
alarm event generates. When the deviation clears, another Syslog sends and a clear alarm event generates.
The link bundle utilization is calculated as the total bandwidth of all links divided by the total bytes-per-second of all links. If you
enable monitoring, the utilization calculation is performed when the utilization of the link-bundle (not a link within a bundle)
exceeds 60%.
To enable and view link bundle monitoring, use the following commands.
● Enable link bundle monitoring.
ecmp-group
● View all LAG link bundles being monitored.
show running-config ecmp-group
Monitoring HiGig Link Bundles
You can monitor the HiGig link bundles that transmit data between internal backplane ports on line-card (leaf) and switch fabric
module (SFM - spine) network processing units (NPUs) and generate a system log message or SNMP trap when traffic
distribution in a link bundle is uneven. Each NPU is a Trident chip.
On the Z9500, backplane port channels operate as HiGig link bundles to transmit data traffic between line-card and SFM NPUs.
There are 11 line-card and 6 SFM NPUs. The 6 SFM (spine) NPUs comprise the switch fabric module; the 11 line-card (leaf)
NPUs are used across three Z9500 line cards.
Line-card NPUs are numbered as follows:
● Line-card slot 0 uses three NPUs numbered 0 to 2.
● Line-card slot 1 uses four NPUs numbered 0 to 3.
● Line-card slot 2 uses four NPUs numbered 0 to 3.
SFM NPUs are numbered 0 to 5.
Line-card and SFM NPUs use HiGig link bundles to transmit data.
● An SFM (spine) NPU uses 11 HiGig link bundles, one link bundle to transmit data to each line-card (leaf) NPU. Each HiGig link
bundle in an SFM NPU consists of two HiGig links.
Interfaces
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