PTP 450 Configuration and User Guide
Task 6: Configuring radio parameters
3-52
pmp-0815 (August 2015)
Table 24
DiffServ tab attributes
Attribute
Meaning
CodePoint 1
through
CodePoint 47
CodePoint 49
through
CodePoint 55
CodePoint 57
through
CodePoint 63
Priorities of 0 through 3 map to the low-priority channel; 4
through 7 to the high- priority channel. The mappings are the
same as 802.1p VLAN priorities.
Consistent with RFC 2474
CodePoint 0 is predefined to a fixed
priority value of 0 (low-priority
channel).
CodePoint 48 is predefined to a fixed priority value of 6 (high-
priority channel). CodePoint 56 is predefined to a fixed
priority value of 7 (high-priority channel).
Operator cannot change any of these three fixed priority
values. Among the settable parameters, the priority values
(and therefore the handling of packets in the high or low
priority channel) are set in the
BHM
for all downlinks within
the sector and in the
BHS
for each uplink.
CodePoint Select
This represents the CodePoint Selection to be modified via
Priority Select
Priority Select
The priority setting input for the CodePoint selected in CodePoint
Select
Priority
Precedence
Allows operator to decide if 802.1p or DiffServ priority bits
must be used first when making priority decisions.
PPPoE
Control
Message
Priority
Operators may configure the BHM to utilize the high
priority channel for PPPoE control messages. Configuring
the BHM in this fashion can benefit the continuity of PPPoE
connections when there are issues with PPPoE sessions
being dropped in the network. This prioritization may be
configured in the DiffServ tab in the Configuration menu of
the BHM.
