NEC UNIVERGE SL2100, Networking Manual

Page: 66 / 196

Number ToS Mode Programs Enabled
1 IP Precedence 84-10-02 Priority – 0=Lowest ~ 7=Highest
(ToS bits: 0~2)
84-10-03 Delay – 0=Normal, 1=Low
(Tos Bit: 3)
84-10-04 Throughput – 0=Normal, 1=High
(Tos Bit: 4)
84-10-05 Reliability – 0=Normal, 1=High
(ToS Bit: 5)
ToS Bit 7: Always 0
Typically, only one of bits 3~6 is set to 1 and the other three bits are set to 0. For example,
to maximize route reliability, set 84-10-05 to 1 and leave 84-10-03, 84-10-04 and 84-10-06
at 0 (default).
2 Diffserv 84-10-07 DSCP Value in Decimals: 0~63
(ToS bits: 0~5)
ToS Bits 6 & 7 are not evaluated
6.7.4 Configuration Examples for Classification and Queuing
Figure 6-6 Common Network with Cisco Router on page 6-20 shows a typical network scenario and
an example of a Cisco router configuration.
This document provides a general description of VoIP technology, but it does not discuss individual
manufacturer solutions. This sample configuration is provided as a common scenario. It is a good example
of how QoS can be implemented on a router.
NEC does not endorse or provide support on any third party equipment unless it is supplied by NEC.
Chassis
Router
100Mbps
Dallas Fort Worth
192.168.1.1 192.168.2.1
PC
192.168.1.50
PC
192.168.2.50
100Mbps
256Kbps
Private Circuit
(Leased Line)
100Mbps 100Mbps
100Mbps 100Mbps
Router
Telephone System
192.168.1.10
Telephone System
192.168.2.10
Chassis
Data Switch Data Switch
10.0.0.1 10.0.0.2
Figure 6-6 Common Network with Cisco Router
See Table 6-6 Cisco Router Configuration Example on page 6-21 for configuration information about
the Cisco 2621 router. A description of key commands follows.
SL2100 ISSUE 1.0
6-20 Network Design Considerations