Ip Network Parameters; Quality Of Service (Qos); Layer 2 / Ieee 802.1P - Siemens A31003-D3000-M100-01-76A9 Administrator User Manual

Administration

IP Network Parameters

3.3 IP Network Parameters

3.3.1 Quality of Service (QoS)

3.3.1.1 Layer 2 / IEEE 802.1p

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Administration via WBM
Network > LLDP-MED operation
Administration via Local Phone
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--- Admin
|--- Network
|--- LLDP-MED operation
|--- TTL
|--- TTL
Related Topics
Related Topics
The QoS technology based on layer 2 and the two QoS technologies Diffserv and
TOS/IP Precedence based on layer 3 are allowing the VoIP application to request
and receive predictable service levels in terms of data throughput capacity
(bandwidth), latency variations (jitter), and delay.
INFO: Layer 2 and 3 QoS for voice transmission can be set via
LLDP-MED (see LLDP-MED). If so, the value can not be changed
by any other interface.
Related Topics
QoS on layer 2 is using 3 Bits in the IEEE 802.1q/p 4-Byte VLAN tag which has
to be added in the Ethernet header.
The CoS (class of service) value can be set from 0 to 7. 7 is describing the highest
priority and is reserved for network management. 5 is used for voice (RTP-
streams) by default. 3 is used for signaling by default.
PREAM. SFD DA
OpenScape Desk Phone IP, Phone Administration, Administrator Documentation
Three Bits Used for CoS (User Priority)
SA TAG 4 PT
Bytes
A31003-D3000-M100-01-76A9, 02-2013
DATA FCS