User manual

C HAPTER 4 | Configuring the Switch
Configuring sFlow
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interface. Or right-click on the entry and select “Properties” to display a list
of device attributes advertised through UPnP.
PATH
Advanced Configuration, UPnP
PARAMETERS
These parameters are displayed:
◆ Mode - Enables/disables UPnP on the device. (Default: Disabled)
◆ TTL - Sets the time-to-live (TTL) value for UPnP messages transmitted
by the switch. (Range: 4-255; Default: 4)
◆ Advertising Duration - The duration, carried in Simple Service
Discover Protocol (SSDP) packets, which informs a control point or
control points how often it or they should receive a SSDP advertisement
message from this switch. Due to the unreliable nature of UDP, the
switch sends SSDP messages periodically at the interval one-half of the
advertising duration minus 30 seconds. (Range: 100-86400 seconds;
Default: 100 seconds)
WEB INTERFACE
To configure UPnP:
1. Click Configuration, UPnP.
2. Enable or disable UPnP, then set the TTL and advertisement values.
3. Click Save.
Figure 95: UPnP Configuration
CONFIGURING SFLOW
Use the sFlow Configuration page to configure periodic sampling of traffic
flows. The flow sampling (sFlow) feature embedded on this switch,
together with a remote sFlow Collector, can provide network administrators
with an accurate, detailed and real-time overview of the types and levels of
traffic present on their network. The sFlow Agent samples 1 out of n
packets from all data traversing the switch, re-encapsulates the samples as
sFlow datagrams and transmits them to the sFlow Collector. This sampling
occurs at the internal hardware level where all traffic is seen, whereas
traditional probes will only have a partial view of traffic as it is sampled at