Nokia M5122 User Manual
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Copyright Nokia Networks Oy
C33874002SE_A0
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4.6
Weighted Fair Queueing (Class of Service)
As a Class of Service (CoS) function, M5122 supports Weighted Fair
Queueing (WFQ) for each ATM VCC. The CoS function ensures that
different IP traffic streams are treated fairly in the upstream (towards
the Internet) direction. This may be necessary, in some cases, because
the upstream capacity of the ADSL line is somewhat limited compared
to the Ethernet bandwidth on the office or home LAN. The WFQ CoS
function classifies IP traffic streams based on IP address, protocol and
port fields. It is capable of identifying the IP stream from all supported
payload encapsulation formats.
