Obtain Qos Measurement Tools; Measure End-To-End Network Delay - Nortel 1000 Fundamentals

Figure 30
QoS level with G.723 codec

Obtain QoS measurement tools

PING and Traceroute are standard IP tools that are usually included with
a network host's TCP/IP stack. A survey of QoS measurement tools and
packages, including commercial ones, can be found in the home page
of the Cooperative Association for Internet Data Analysis (CAIDA) at
www.caida.org
like timestamping, plotting, and computation of standard deviation.

Measure end-to-end network delay

The basic tool used in IP networks to measure end-to-end network delay is
the PING program. PING takes a delay sample by sending an ICMP packet
from the host of the PING program to a destination server. PING then waits
for the packet to make a round trip. A sample of PING is as follows:
Richardson3% PING -s santa_clara_itg4 60
PING santa_clara4 (10.3.2.7):
68 bytes from (10.3.2.7):
time=97ms
68 bytes from (10.3.2.7):
time=100ms
68 bytes from (10.3.2.7):
time=102ms
68 bytes from (10.3.2.7):
time=97ms
68 bytes from (10.3.2.7):
time=95ms
68 bytes from (10.3.2.7):
Copyright © 2007, Nortel Networks
.
These include delay monitoring tools that include features
icmp_seq=0 ttl=225
icmp_seq=0 ttl=225
icmp_seq=0 ttl=225
icmp_seq=0 ttl=225
icmp_seq=0 ttl=225
icmp_seq=0 ttl=225
Nortel Communication Server 1000
IP Trunk Fundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
Measure intranet QoS 143
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