Configuring Netstream Statistics Aging; Introduction To Netstream Statistics Aging; Displaying And Maintaining Netstream - 3Com MSR 50 Series Configuration Manual

3com msr 30-16: software guide

Hide thumbs Also See for MSR 50 Series:

Safety information manual (12 pages)

Table of Contents

NetStream Statistics

Introduction to

NetStream Statistics

Configuring NetStream

Statistics Aging

Displaying and

In actual networking environments, enormous stream statistics may be produced

in a very short time. To accommodate latest stream statistics, a mechanism called

aging was introduced. This mechanism clears entries from a NetStream cache

using three approaches: periodical, forced TCP FIN and RST packet-triggered (it is

automatically triggered when a TCP connection is terminated).

Periodical aging

Periodical aging uses two approaches:

Inactive aging, where a NetStream cache entry ages out if the time elapsed

since the last packet was present for this entry exceeds the time specified by

the inactive timeout command.

Active aging, where a NetStream cache entry ages out if the time elapsed since

the first packet was present for this entry exceeds the time specified by the

active timeout command.

Forced aging

Forced aging allows you to forcibly age and export all NetStream cache entries

before they automatically get aged and clear the status information of the

NetStream cache and the exported packets information. The information about

the exported packets is recounted when forced aging begins.

Enter system view

NetStream statistics

CAUTION: You can configure the active aging timer and inactive aging timer at

the same time. When either one of them times out, the entry ages out. The time

precision is 10 seconds.

Display configuration and status information about the

NetStream cache

Display statistics about exported NetStream packets