MSS stands for "Maximum Segment Size"
The MSS value is calculated from the MTU.
MSS = MTU – (layer 3 TCP header [20 Byte] + Layer 2 IP header [20 Byte]+ Layer Ethernet 1 [6+6+2 = 14 Byte])
For example looking at CPP 6 Platform – like FLEXIDOME IP panoramic 7000 MP in Firmware version 6.50.0128 you can adjust and find the following values:
|MTU and MSS can be adjusted at all released firmware versions 4.x and later.||CPP-ENC||CPP3||CPP4||CPP5||CPP6||CPP7||CPP7.3|