Avaya IP Telephony Guía de configuración Pagina 194

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 222
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 193
194 Quality of Service
P0609327 02
Delay characteristics vary depending on the site pair and the time of day. The evaluation of the
intranet includes taking delay measurements for each site pair. If there are important changes of
traffic in the intranet, include some Ping samples during the peak hour. For a more complete
evaluation of the intranet delay characteristics, get Ping measurements over a period of at least a
week.
Measuring end-to-end packet loss
The Ping program also reports if the packet made its round trip correctly. Use the same Ping host
setup to measure end-to-end errors. Use the same packet size.
Sampling error rate, require taking multiple
Ping samples (at least 30). An accurate error
distribution requires data collection over a greater period of time. The error rate statistic from
multiple
Ping samples is the packet loss rate.
Recording routes
As part of the network evaluation, record routing information for all source destination pairs. Use
the Traceroute tool to record routing information. A sample of the output of the Traceroute tool
follows:
C:\WINDOWS>tracert 10.10.10.15
Tracing route to 10.10.10.15 over a maximum of 30 hops:
1 3 ms 1 ms <10 ms tftzraf1.ca.nortel.com [10.10.10.1]
2 1 ms 1 ms 1 ms 10.10.10.57
3 7 ms 2 ms 3 ms tcarrbf0.ca.nortel.com [10.10.10.2]
4 8 ms 7 ms 5 ms bcarha56.ca.nortel.com [10.10.10.15]
Trace complete.
The Traceroute program checks if routing in the intranet is symmetric for each source destination
pairs. Also, the Traceroute program identifies the intranet links used to carry voice traffic. For
example, if Traceroute of four site pairs gets the results shown in the following table, you can
calculate the load of voice traffic per link, as shown in the second table.
Table 51 Site pairs and routes
Site pair Intranet route
Santa Clara/Richardson R1-R4-R5-R6
Santa Clara/Ottawa R1-R2
Santa Clara/Tokyo R1-R4-R5-R7
Richardson/Ottawa R2-R3-R5-R6
Vista de pagina 193
1 2 ... 189 190 191 192 193 194 195 196 197 198 199 ... 221 222

Comentarios a estos manuales

Sin comentarios