Re: [SAGE] Network Bandwidth Analysis

[Alexios Zavras <zvr@pobox.com>]

Rayappa Mayakunthala wrote [edited]:
> Can you all suggest a tool (free & commercial) to do network bandwidth
> monitoring / reporting / analysis for a site of size of 300 hosts ?

It depends on the network topology, the bandwidth,
and the requirements for accuracy that you have.
In a nutshell:

* topology: whether it's a single LAN or more, whether there are routers
    and/or switches between them, etc.; it all matters
    (of course, on a more basic level, whether it's Ethernet
    or something else, like ATM, Token Ring, etc.)

* bandwidth: as you move towards a situation where you have your 300 hosts
    each with one (or more) Gigabit ethernet interfaces, and using
    a large fraction of this bandwidth, the choice of available tools
    gets limited pretty quickly.

* accuracy requirements: there are solution based on traffic sampling
    that might (or might not) be godd enough for you.  If not,
    there are solutions based on traffic mirroring (but this depends
    on the rest of the factors, as well).

Therefore, to give any recommendation, more info is needed.
-- 
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