GE 82-POE Benutzerhandbuch

 

Chapter 4: Web-Based Management 

GE-DS-82 and 82-PoE Ethernet Managed Switch User Manual 

111 

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 

 

CFI 

VLAN ID (VID) 

3 bits  1 

bits 

 12 

bits 

TPID (Tag Protocol 

Identifier) 

TCI (Tag Control 

Information) 

2 bytes  

2 bytes 

Preamble 

Destination 

Address 

Source 

Address 

Ethernet 

Type 

Data FCS 

6 bytes   

6 bytes  4 bytes   

2 bytes  46-1517 bytes   4 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. 

QoS settings allow customization of packet priority in order to facilitate delivery of 
data traffic that might be affected by latency problems. The IEEE 802.1p Priority 
specification uses 8 priority levels to classify data packets. In 802.1p compliant 
devices, a tag inserted into the packet header is used to identify the priority level of 
data packets. 
The Switch supports Static Port Ingress priority and four queues. The screen in Figure 
79 appears.