60 Matrix PRASAR UCS System Manual
The meaning of CoS bits with respect to traffic type is as follows:
• Select Phone VLAN/COS to add VLAN header to the packets generated by the phone, and add VLAN
header to the packets relayed from the PC to its LAN port (packets generated by the PC connected to its
PC port).
• To configure Phone VLAN/COS, select Enable?. The VLAN ID will be tagged on all packets generated
by the phone (SIP, RTP, DNS, ARP, etc.). Default: Disabled.
• Select VLAN ID and enter the VLAN ID that you have assigned to the VLAN in which the IP Phones are
connected. Valid range: 0-4094. Default: 1.
• Select SIP CoS and define the CoS (priority) bits in all SIP packets. Valid range: 0-7. Default: 3
• Select RTP CoS and define the CoS (priority) bits in all RTP packets. Valid range: 0-7. Default: 6.
• Select PC/VLAN CoS to add VLAN header to all packets entering the PC Port and leaving the LAN port of
the phone. Default: Disabled.
• To configure PC VLAN/COS, select Enable?.
• Select VLAN ID and enter the same ID as you have assigned to the VLAN in which the computers are
connected. Valid range: 0-4094. Default: 1.
• Select CoS and define the Layer 2 CoS (priority) bits. Valid range: 0-7. Default: 0.
PCAP
To capture packets sent and received from and by the phone for monitoring and troubleshooting, you can enable
PCAP on the phone. The phone captures up to 1 MB of packets. For more information and for instructions on how
to use PCAP Trace on the phone, see “Using PCAP Trace for Matrix SPARSH VP310 Matrix Extended IP Phone”,
under PCAP Trace.
9. The IEEE 802.1P standard allows Layer2 switches to prioritize the traffic, thus providing Quality of Service (QoS), that is, better han-
dling of data that pass over a network, thereby resulting in greater reliability and quality. Quality of Service (QoS) on Layer2 is referred
to as Class of Service (CoS) which is defined by IEEE 802.1P.
CoS Traffic Type
0 Best Effort
1 Background
2 Spare
3 Excellent Effort
4 Controlled Load
5 Video
6Voice
7 Network Control
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