DIS-2/M StreamerPro HDD Large UTP
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Dallmeier electronic
9.3.3
Range restriction
The so-called “Time to Live“ value can be fixed in the TTL box. This value specifies how far
a data packet can spread in the network. The TTL is reduced by one by each router through
which a packet is routed. If the TTL is zero, the packet is discarded.
This method means that packets that move to and from between two computers due to
routing errors are removed from the network.
On the other hand, this can prevent a data packet bursting the limits of the LAN and being
sent into the WAN (TTL = 1).
You can enter a TTL of 1 – 255, depending on your requirements. If you enter 0 (zero) the
default values are used (TTL = 1 for multicast, TTL = 64 for unicast).
9.3.4
Packet size
The size of the data packets to be sent is set in Packet size. To optimize the transmission
times (delay) of the data packets, the packet size should be set to 2048 bytes.
The larger a packet’s size, the more time it can take until the packet is “complete“ and ready
for transmission. This can lead to a delay that results in a “jumpy“ video stream.
The smaller the data packets are, the greater the network overhead.
