PLANET ISW-1022MPT - Manual (Page 108)

User’s Manual of ISW-1022M Series and ISW-1033MT
Figure 5-52 QoS Configuration – COS Priority
The table includes the following fields:
Object Description
COS priority: Set up the COS priority level 0~7—High, Middle, Low, Lowest.
802.1p Priority: Priority classifiers of the Switch forward packet. COS range is from 0 to 7.
Seven is the high class. Zero is the less class. The user may configure the mapping
between COS and Traffic classifiers.
5.6.4.4 TOS Configuration
DiffServ Code Point (DSCP) － is the traffic prioritization bits within an IP header that are encoded by certain
applications and/or devices to indicate the level of service required by the packet across a network.
The Quality of Service page provides fields for defining output queue to specific DSCP fields. When TCP/IP’s
TOS/DSCP mode is applied, the Switch recognizes TCP/IP Differentiated Service Codepoint (DSCP) priority information
from the DS-field defined in RFC2474. Select the QoS mode to TOS, the TOS to priority mapping page appears, as the
Figure 5-53 shows.
Set up the TOS priority. With the drop-down selection item of Priority Type above being selected as TOS only/TOS first,
this control item will then be available to set the queuing policy for each port.
108