Cos Configuration - Planet ISW-1022M User Manual

The table includes the following fields:
Object
Port x:

5.6.4.3 COS Configuration

QoS settings allow customization of packet priority in order to facilitate delivery of data traffic that might be affected by
latency problems. When CoS / 802.1p Tag Priority is applied, the Switch recognizes 802.1Q VLAN tag packets and
extracts the VLAN tagged packets with User Priority value.
802.1Q Tag and 802.1p priority
Destination
Preamble
Address
6 bytes
Set up the COS priority level. With the drop-down selection item of Priority Type above being selected as COS only/COS
first, this control item will then be available to set the queuing policy for each port.
The table includes the following fields:
Object
COS priority:
Figure 5-51 QoS Configuration – Port-Based Priority
Description
Each port has 4 priority levels—High, Middle, Low, and Lowest—to be chosen.
User Priority
3 bits
TPID (Tag Protocol
Identifier)
2 bytes 2 bytes
Source
VLAN TAG
Address
6 bytes 4 bytes
Figure 5-52 802.1p Tag Priority
Figure 5-52 QoS Configuration – COS Priority
Description
Set up the COS priority level 0~7—High, Middle, Low, Lowest.
User's Manual of ISW-1022M
CFI VLAN ID (VID)
1 bits 12 bits
TCI (Tag Control
Information)
Ethernet
Data
Type
2 bytes 46-1517 bytes
94
FCS
4 bytes