Avaya BCM Management Guia do Utilizador descarregar pdf (Página 355)

Chapter 6 Performance Management 351

Business Communications Manager - Management User Guide

Accessing the IP Packets graph and table

A packet is the unit of data that is routed between an origin and a destination on the Internet or any

other packet-switched network. When any file, such as an e-mail message, HTML file, GIF file,

URL request, and so forth, is sent from one place to another on the Internet, the Transmission

Control Protocol (TCP) layer of TCP/IP divides the file into pieces of an efficient size for routing.

Each of these packets is separately numbered and includes the Internet address of the destination.

The individual packets for a given file may travel different routes through the Internet. When the

packets have all arrived, they are reassembled into the original file.

To access the IP Packets Graph and Table

1 Access the Resources performance monitor (see “Accessing the Resources Performance

Monitor” on page 350). Continue to the next step of this procedure when complete.

2 From the Performance drop-down menu, select one of the following from the top line menu

item:

a IP Packets Graph

b IP Packets Table

IP Packet counter types

The IP Packets graph and table selections display IP-related network traffic statistics. When you

display the IP Packets graph, you can select and display statistics for one of the following counter

types:

• IP Packets Forwarded: The rate of input datagrams for that this entity was not their final IP

destination, as a result of which an attempt was made to find a route to forward them to that

final destination. In entities that do not act as IP Gateways, this rate will include only those

packets that were Source-Routed via this entity, and the Source-Route option processing was

successful.

• Outbound discarded: the number of output IP datagrams for which no problems were

encountered to prevent their transmission to their destination, but which were discarded (e.g.,

for lack of buffer space.) This counter would include datagrams counted in Datagrams

Forwarded if any such packets met this (discretionary) discard criterion.

• Outbound - no route: the number of IP datagrams discarded because no route could be found

to transmit them to their destination. This counter includes any packets counted in Datagrams

Forwarded that meet this `no route' criterion.

• Received address errors: The number of input datagrams discarded because the IP address in

their IP header's destination field was not a valid address to be received at this entity. This

count includes invalid addresses (e.g., 0.0. 0.0) and addresses of unsupported Classes (e.g.,

Class E). For entities that are not IP Gateways and therefore do not forward datagrams, this

counter includes datagrams discarded because the destination address was not a local address.

• Received delivered: The rate that input datagrams are successfully delivered to IP

user-protocols (including ICMP).

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Avaya BCM Management Guia do Utilizador Página 355