Planet Networking & Communication MGSW-28240F User Manual page 66

The page includes the following fields:
Object
 Mode
 TTL

Advertising Duration
Buttons
: Click to save changes.
: Click to undo any changes made locally and revert to previously saved values.
Description
Indicates the UPnP operation mode. Possible modes are:

Enabled: Enable UPnP mode operation.

Disabled: Disable UPnP mode operation.
When the mode is enabled, two ACEs are added automatically to trap UPNP
related packets to CPU. The ACEs are automatically removed when the mode is
disabled.
The TTL value is used by UPnP to send SSDP advertisement messages. Valid
values are in the range of 1 to 255.
The duration, carried in SSDP packets, is used to inform a control point or control
points how often it or they should receive a SSDP advertisement message from
this switch. If a control point does not receive any message within the duration, it
will think that the switch no longer exists. Due to the unreliable nature of UDP, in
the standard it is recommended that such refreshing of advertisements to be
done at less than one-half of the advertising duration. In the implementation, the
switch sends SSDP messages periodically at the interval one-half of the
advertising duration minus 30 seconds.
Valid values are in the range 100 to 86400.
Figure 4-2-11: UPnP Devices shows on Windows My Network Places
User's Manual of MGSW-MGSD Series
66