User’s Guide · IPS – IPT – IPQ – IPLanTVManager
- 11 - IPS – IPT – IPQ – IPLanTVManager Version_en_1.0 FTE maximal
2.3. Management Tasks
The management commands are applied to the selected device (highlighted line), but not the “Set MPTS/SPTS Mode”,
“Device Settings” and “LNB Settings” commands that are applied to the device “connected” (symbol “C”). In the following
figure you can see that the selected device, and the device connected can be different ones. A selected device is done by
a simple click on the desired device, and a device connected can be by three different ways: doing a double click on the
device, or selecting the device (simple click) and either clicking the ‘Connect’ icon (
) or doing the menu option
“Manager/Connect”.
2.3.1. Configuration of the device parameters
We can configure the device parameters by clicking the menu option “Configuration/Device Settings” or clicking the icon
. These parameters are: name, network settings (IP address, net mask and gateway address), “querying” status and
TTL value. These two last parameters are inside “Advanced Options”.
The “querying” status parameter is in relation with the multicasting management. Normally, the multicast traffic generated
by these devices is distributed through routers and switches that must support IGMPv2. In these distribution networks
there must be a “querier” that generates ‘IGMP query’ messages. This function is generally made by a router/switch, but if
it is not present you can configure an only one device to perform this function. The port of the switch or router where this
“querying” device is attached to, must support all the multicasting traffic existing in this switch/router. The “querying”
status of the device can be displayed and modified in “Enable Querier” tick.
The TTL parameter value refers to the value of “Time To Live” field, in the streaming traffic generated from the device.
When an IP packet comes in a router/switch, if its TTL is non zero, the packet will be propagated with the TTL
decremented by 1. So, this value gives us an idea of the scope for the streaming traffic generated by these devices. The
“querying” status and TTL value is configured through the following window.
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