User's Manual

C HAPTER 4 | Configuring the Switch
Configuring Local Port Mirroring
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◆ Enable - Enables or disables storm control. (Default: Disabled)
◆ Rate (pps) - The threshold above which packets are dropped. This limit
can be set by specifying a value of 2
n
packets per second (pps), or by
selecting one of the options in Kpps (i.e., marked with the suffix “K”).
(Options: 2
n
pps where n = 1, 2, 4, 8, 16, 32, 64, 128, 256, 512; or 1,
2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 Kpps; Default: 2 pps)
Due to an ASIC limitation, the enforced rate limits are slightly less than
the listed options. For example: 1 Kpps translates into an enforced
threshold of 1002.1 pps.
WEB INTERFACE
To configure Storm Control:
1. Click Configuration, QoS, Storm Control.
2. Enable storm control for unknown unicast, broadcast, or multicast
traffic by marking the Status box next to the required frame type.
3. Select the control rate as a function of 2
n
pps (i.e., a value with no
suffix for the unit of measure) or a rate in Kpps (i.e., a value marked
with the suffix “K”).
4. Click Save.
Figure 89: Storm Control Configuration
CONFIGURING LOCAL PORT MIRRORING
Use the Mirroring & RSPAN Configuration page to
mirror traffic from any local source port to a
target port on the same switch for real-time
analysis. You can then attach a logic analyzer or
RMON probe to the target port and study the
traffic crossing the source port in a completely
unobtrusive manner.
PATH
Basic/Advanced Configuration, Mirroring & RSPAN
COMMAND USAGE
General port mirroring configured on the Mirroring & RSPAN Configuration
page and ACL-based port mirroring are implemented independently. When
Source
port(s)
Single
target
port