Lancom Systems LCOS 3.50 User Manual
Page 191

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Chapter 9: Quality of Service
LANCOM Reference Manual LCOS 3.50
191
Quality of
Service
The following example shows a setting for Voice over IP telephony:
This rule defines the minimum bandwidth for sending and receiving to 32
Kbps, forces and reduces the PMTU while sending and receiving to packets of
256 byte size. For the TCP connection, the maximum segment size of the local
workstation is determined to 216, so that the server will send packets of max-
imum 256 byte (reduction of the PMTU in sending and receiving direction).
Rule
Source
Destination
Action
Protocol
VOIP
IP addresses of IP
telephones in the
LAN, all ports
IP addresses of IP
telephones in the
LAN, all ports
%Qcds32 %Prt256
UDP