If any queues are empty, the highest non-empty queue gets one more weighting. For example, if
q2 is empty, q3:q2:q1:q0 becomes (8+1):0:2:1.
In case of fixed queuing mode, highest priority buffer (q3) will pass packets as long as its buffer is
full.
By default weighted priority queuing mode is enabled.
4.9.2
QoS 802.1p Configuration
QoS 802.1p provides configuration of QoS 802.1p priority mapping. You are able to map 8
different traffic 802.1p values (0 – 7) into 4 priority queues (1 – 4).
Figure 4.52
QoS 802.1p priority mapping
1.
QoS 802.1p priority mapping –
allows assigning queue values to specific 802.1p values.
2.
By pressing
„Execute configuration”
changes made to the corresponding section apply only
for the local side CFIP PhoeniX. If
„Rollback on”
is selected, configuration will be reverted in
case erroneous configuration changes are applied.
3.
Writes to configuration file all the changes made on the whole page (command line –
cfg
write
);
4.
System returned -
in case of error or incorrectly entered parameter value, or other problems
on the whole page – the info message is being shown here. Otherwise it says “Ok”.
4.9.3
DSCP Configuration
QoS DSCP provides mapping of different traffic DSCP classes to priority queues.
CFIP PhoeniX Series TDM/IP Split Mount System Technical Description and Configuration Guide
•
Rev. 1.13
•
© SAF Tehnika JSC 2015
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