I am Network Engineeer. In my network totally 3 vlans with 250 users. Now I analyse the network through FLUKE Lan Analyser. I got 100 % Broadcast in my network. I want to reduce the Broadcast. I use Cat 4503 chassis as a L3 switch.
Is it possible you are just monitoring on a switch port and you are ONLY seeing broadcast frames and the switch is doing it's job correctly? If you have just plugged a fluke into an switched access port then the switch will discover the fluke's MAC address (if it transmits anything) and only forward traffic specifically to it's MAC address as well as broadcasts & multicasts within the VLAN.
It might be worth explaining what you have configured to enable this 'monitoring'.
I tend to agree with Andrew. If your network was truly experiencing 100% broadcast traffic in the sense that you mean it - i.e. all your segments full to capacity with broadcast frames - then your network would be non-functional.
Is your network working? Are users able to run their applications, performance is adequate, etc? Then you probably don't have a problem with broadcast traffic. As Andrew pointed out, the Fluke might be seeing a lot of broadcast frames on the interface you happen to be plugged into.
Did you configure the interface you plugged the Fluke into to be a span or monitor port? If you didn't, all you're going to see are broadcast frames. The Fluke will never see unicast traffic destined for other interfaces without a span set up. The Fluke will only see traffic that happens to come across the interface you plugged the Fluke into - broadcast traffic.
If you want to see ALL the traffic flowing through your 4503 (unicast AND broadcast), you need to configure the 4503 to send copies of all frames it sees to the interface you plugged the Fluke into. This is done using a span session. Perhaps you're already running a span session. But if not, take a look at this link that will explain to you how to set it up.
You need to use SPAN to see the entire VLAN traffic, both unicast and broadcast. The link I posted in the previous message explains how to set this up.
I doubt you have a problem with broadcast traffic from what you have written. But let's assume, for sake of argument, you really have a crippling broadcast storm that's consuming 100% of your network bandwidth. The simplest way to deal with broadcast storms is to use storm-control. Using storm-control will accomplish, in your words, "broadcast reducing" and "increase network bandwidth".
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.