Brocade FastIron Ethernet Switch Administration Guide - Manual (Page 259)

Clearing sFlow statistics
To clear the UDP packet and sFlow sample counters in the show sflow display, enter the following
command.
device#clear statistics
Syntax: clear statistics
This command clears the values in the following fields of the show sflow display:
• UDP packets exported
• sFlow samples collected
NOTE
This command also clears the statistics counters used by other features.
Utilization list for an uplink port
You can configure uplink utilization lists that display the percentage of a given uplink port bandwidth that
is used by a specific list of downlink ports. The percentages are based on 30-second intervals of RMON
packet statistics for the ports. Both transmit and receive traffic is counted in each percentage.
NOTE
This feature is intended for ISP or collocation environments in which downlink ports are dedicated to
various customers’ traffic and are isolated from one another. If traffic regularly passes between the
downlink ports, the information displayed by the utilization lists does not provide a clear depiction of
traffic exchanged by the downlink ports and the uplink port.
Each uplink utilization list consists of the following:
• Utilization list number (1, 2, 3, or 4)
• One or more uplink ports
• One or more downlink ports
Each list displays the uplink port and the percentage of that port bandwidth that was utilized by the
downlink ports over the most recent 30-second interval.
You can configure up to four bandwidth utilization lists.
Utilization list for an uplink port command syntax
To configure an uplink utilization list, enter commands such as the following. The commands in this
example configure a link utilization list with port 1/1 as the uplink port and ports 1/2 and 1/3 as the
downlink ports.
device(config)#relative-utilization 1 uplink eth 1/1 downlink eth 1/2 to 1/3
device(config)#write memory
Syntax: [no] relative-utilization num uplink ethernet [to port | port...] downlink ethernet port [to port
| [port...]
Clearing sFlow statistics
FastIron Ethernet Switch Administration Guide 259
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