Brocade TurboIron 24X Series Configuration Guide - Manual (Page 286)

252 Brocade TurboIron 24X Series Configuration Guide
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Configuring a utilization list for an uplink port
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.
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 as the uplink port and ports2 and 3 as the
downlink ports.
TurboIron(config)#relative-utilization 1 uplink eth 1 downlink eth 2 to 3
TurboIron(config)#write memory
Syntax: [no] relative-utilization <num> uplink ethernet <portnum> [to <portnum>] downlink
ethernet <portnum> [to<portnum>]
The <num> parameter specifies the list number. You can configure up to four lists. Specify a
number from 1 – 4.
The uplink ethernet parameters and the port numbers you specify after the parameters indicate
the uplink ports.
The downlink ethernet parameters and the port numbers you specify after the parameters indicate
the downlink ports.
Displaying utilization percentages for an uplink
After you configure an uplink utilization list, you can display the list to observe the percentage of
the uplink bandwidth that each of the downlink ports used during the most recent 30-second port
statistics interval. The number of packets sent and received between the two ports is listed, as well
as the ratio of each individual downlink port packets relative to the total number of packets on the
uplink.
To display an uplink utilization list, enter a command such as the following at any level of the CLI.
TurboIron#show relative-utilization 1
uplink: ethe 1
30-sec total uplink packet count = 3011
packet count ratio (%)
2:60 3:40
In this example, ports 2 and 3 are sending traffic to port 1. Port 2 and port 3 are isolated (not
shared by multiple clients) and typically do not exchange traffic with other ports except for the
uplink port, 1.
Syntax: show relative-utilization <num>
The <num> parameter specifies the list number.
NOTE
The example above represents a pure configuration in which traffic is exchanged only by ports 2 and
1, and by ports 3 and 1. For this reason, the percentages for the two downlink ports equal 100%. In
some cases, the percentages do not always equal 100%. This is true in cases where the ports
exchange some traffic with other ports in the system or when the downlink ports are configured
together in a port-based VLAN.