General Terms - UTStarcom iSpirit 3026 Manual

In order to ensure the port-to-port service quality, in QoS field all devices should be equipped
with relative QoS function. Switch in QoS field bcommandline needs to be equipped with
powerful QoS function, which can according to multi-field of IP data packet make classification
for data flow, based on operation type make classification for bandwidth, and support
multi-scheduling policies. Switch in QoS field can only based on operation signs carry out PRI
processing. iSpirit 3026 can be used as field bcommandline switch and that within field.
In this Section following contents are introduced:
● General Terms
● QoS Model
● Operation Classification
● QoS Policy
● QoS Scheduling
● FFP Introduction

1. General Terms

QoS field: integration of network and device, all devices in the field make use of the same QoS
policy, which ensure port-to-port service quality. Class: integration of data flow using of the same
QoS policy in QoS field, either one data flow or more data flows can be included. Class
information: make sign on class, which can be COS value, IP Precedence value, and DSCP
value. COS: class information of 802.1p, the value is from 0 to 7, every value indicates one class
type. IP Precedence: class information used by early IP network, and the value is from 0 to 7.
every value indicates one class type. DSCP: class information of DiffServ, whose value is from 0
to 63, every value incates one class type. Internal DSCP: DSCP value inside the switch that
make QoS policy based on this value. Classification: at QoS field bcommandline according to
one or more fields in IP data packet makes classification for data flow, mapping with one internal
DSCP value. QoS Policing: used for class (internal DSCP), including whether it needs
bandwidth processing, PRI alignment used, and whether the class information of IP data packet
should be modified.
Trust Port of QoS: input port of switch with QoS processing based on class information is the
Trust Port. Class information maybe the COS, IP Precedence, and DSCP, separately called as
Trust COS, Trust IP_Precedence, and Trust DSCP. Port of switch in QoS field is the Trust Port.
Untrust Port of QoS: make classification for IP data packet, switch input port with QoS
processing after classification is the Untrust Port. Switch port in QoS field bcommandline is the
Untrust Port. In Profile: data flow of one class is within bandwidth limited value. Out of Profile: