User's Manual

2-52
BreezeACCESS 4.0 Operations and Administration
Manual Revision: 1.01
Since the system supports both Layer 2 and Layer 3
prioritization, a frame will be routed to the Mid queue if
one of the following conditions is met:
a. The precedence in the ToS field is higher than the value
of the ToS Precedence Threshold parameter (applicable to
both tagged and untagged frames).
b. The VLAN Priority field in a tagged frame is higher than
the value of the VLAN Priority Threshold parameter.
Valid values are 0-7.
The default value is 4.
" Show VLAN Parameters – Displays the current values of the
VLAN Support parameters.
ToS Priority Parameters (AU and SU)
! ToS Priority – To set voice priority parameters to support
end-to-end IPv4 Type of Service (ToS) Layer 3 prioritization
according to RFC 791. The ToS Priority menu includes the following
parameters:
" Voice Packets ToS (SU with voice support only) – Sets the
value of the Type of Service (ToS) field in the IP header of
voice frames (RTP packets). If the router/gateway in the base
stations supports quality of service based on IPv4 ToS, the
value of this parameters should be configured according to
the definitions of the router/gateway in order to take
advantage of the QoS feature and to ensure that voice
packets will be handled accordingly.
Valid values are 0-255.
The default value is 0.
" ToS Precedence Threshold (AU and SU) – ToS based
prioritization is in accordance with the precedence bits of the
ToS field in the IP header. An IP packet received from the
Ethernet port will be routed to the Mid queue if one of the
following conditions is met:
a.The precedence in the ToS field is higher than the value of
the ToS Precedence Threshold parameter (applicable to both
tagged and untagged frames).
b. The VLAN Priority field in a tagged frame (hybrid or trunk
link) is higher than the value of the VLAN Priority Threshold
parameter.
All other packets received from the Ethernet port will be
routed to the Low queue.
Valid values are 0 to 7.
The default value is 3.