bandwidth monitoring for juniper SSG

September 29, 2010 at 06:57:38
Specs: WinXP, 2GB
Hi all: I have been looking around software tool that can help to monitor bandwidth on Juniper SSG device. is there anyone that can suggest any freebie stuff can do that or recommend commercial product.


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November 29, 2010 at 23:39:34
The most convenient way is to monitor on a mirroring port of your switch.

Since the mirroring port can mirror all your network traffic, with an internet monitoring program connected to this mirroring port, you will be able to monitor all computers network usage.

I am using "WFilter Enterprise" to monitor my network.

Key Features:
1. Keep a detailed record of each web surfing and web posting.
2. Record all incoming and outgoing email content and attachment.
3. Monitor and archive instance messengers chat contents and activities.
4. Monitor and archive files transferred by web, ftp and IM tools.
5. Implement a policy to filter internet access during working hours.
6. Websites, messengers and p2p file downloading can be blocked to save bandwidth and raise productivity.
7. You only need to install WFilter in ONE computer to manage your whole network.

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November 30, 2010 at 07:48:39
There are actually devices that are no more than a splitter that you could use for this purpose. If memory servers me, they're called something like, "in-line tap" or "ethernet tap" or "network tap".

Do some googling and research. It wouldn't surprise me at all if they make ones that can monitor as well.

While port mirroring would requires the device you do it on have at least two free ports and the capabiliity of mirroring. If your juniper ssg device isn't capable, then you'd need a managed switch that is. The tap is a much simpler idea and while it's been a while since I actually touched one, if I'm not mistaken, they aren't overly expensive.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***

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November 30, 2010 at 08:28:13
I'm not sure of your level of experience, but MRTG is typically best suited for something like this. It's open source, reports bandwidth utilization by interface and historically logs the information for you so you can trend and plan for growth or consolidation. It's extremely popular in the network realm of monitoring tools.

Unfortunately, as i understand it, your device does NOT do NetFlow which is a shame as there are also some free Windows and Linux tools available which would sort your bandwidth utilization into fields such as Source, Destination, port information, traffic information e.g. http, ftp etc....

Until NetFlow is supported, MRTG would give you what you're looking for here.

If can be found at the following location:

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November 30, 2010 at 11:09:32
Thanks for all information from you. I think I would try using SPAN to monitor Internet traffic.


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