Technical Configuration
TalkAnytime User Guide
76
The
Ethernet/IP Parameters
fields are described in the tables and text passages below. Note that both
DiffServ parameters (Call Control PHB and VoIP Media PHB) must be set to zero if you enable Packet
Prioritization (802.1p). Nonzero DiffServ values negate the prioritization scheme.
Ethernet/IP Parameter Definitions
Field Name
Values
Description
Ethernet Parameters
Packet
Prioritization
(802.1p)
Y/N
Select to activate prioritization under 802.1p protocol (described
below).
.
Frame Type
Type II, SNAP
Must be set to match network’s frame type. Default is
Type II.
802.1p
A draft standard of the IEEE about data traffic prioritization on Ethernet networks. The
802.1p draft is an extension of the 802.1D bridging standard. 802.1D determines how
prioritization will operate within a MAC-layer bridge for any kind of media. The
802.1Q draft for virtual local-area-networks (VLANs) addresses the issue of
prioritization for Ethernet networks in particular.
802.1p enacts this Quality-of-Service feature using 3 bits. This 3-bit code allows data
switches to reorder packets based on priority level. The descriptors for the 8 priority
levels are given below.
802.1p PRIORITY LEVELS
LOWEST PRIORITY
1 –
Background
:
Bulk transfers and other activities permitted on the
network, but should not affect the use of network by other users
and applications.
2 –
Spare
:
An unused (spare) value of the user priority.
0 –
Best Effort
(default): Normal priority for ordinary LAN traffic.
3 –
Excellent Effort
:
The best effort type of service that an information services
organization would deliver to its most important customers.
4 –
Controlled Load
:
Important business applications subject to some
form of “Admission Control”, such as preplanning of Network
requirement, characterized by bandwidth reservation per flow.
5 –
Video
:
Traffic characterized by
delay < 100 ms.
6 –
Voice
:
Traffic characterized by
delay < 10 ms.
7 -
Network Control
:
Traffic urgently needed to maintain and support
network infrastructure.
HIGHEST PRIORITY
Call Control
Priority
0-7, where 0 is
lowest priority
Sets the priority for signaling packets.
VoIP Media
Priority
0-7, where 0 is
lowest priority
Sets the priority for media packets.
Others
(Priorities)
0-7, where 0 is
lowest priority
Sets the priority for SMTP, DNS, DHCP, and other packet types.
VLAN ID
1 - 4094
The 802.1Q IEEE standard allows virtual LANs to be defined
within a network. This field identifies each virtual LAN by
number.
Summary of Contents for TalkAnytime TA2410
Page 6: ...6 Chapter 1 Overview ...
Page 20: ...20 Chapter 2 Quick Start Instructions ...
Page 48: ...48 Chapter 3 Mechanical Installation and Cabling ...
Page 56: ...56 Chapter 4 Software Installation ...
Page 65: ...65 Chapter 5 Technical Configuration ...
Page 116: ...Technical Configuration TalkAnytime User Guide 116 ...
Page 123: ...123 Chapter 6 Phonebook and URL Configuration ...
Page 143: ...143 ...
Page 144: ...144 Chapter 7 Operation and Maintenance ...
Page 205: ...205 Chapter 8 Warranty Service and Tech Support ...
Page 208: ...208 Chapter 9 Regulatory Information ...
Page 213: ...213 Appendix A Cable Pinouts ...
Page 217: ...217 Appendix B TCP UDP Port Assignments ...
Page 219: ...219 Appendix C Expansion Card Installation TA24 48 TA30 60 ...
Page 234: ......
Page 235: ...235 S000424A ...