Network reconfig advice please

[prigat_a]

hi guys,
i'm new in this forum, and i'm now the IT guy in small company in LA,
they some network issue here, i wondering if I will upload diagram of the network here will you give me some advises and help me figure what making some issue here?
thanks

 

[prigat_a]

it's look like a big mess for me, i'm used to work with, data server blackberry server, backup tapes, exchange server, cisco switches cisco router,
baseclly big network,
but when i start working here, i don't even know how to start
lots of time, the dlink storage become unreachable, sometime the all network get limited connectivity and doesn't have internet connection.

 

[prigat_a]

http://postimg.org/image/c0c100khj/

 

[Nerre]

I'm not a professional but it looks a bit like bad infrastructure (but not sure if that is the problem).

The poor Dlink 8 port switch seems to be the one taking the most traffic. The cable connecting it to the 16 port switch is probably a bottleneck.

Unless there are location issues I would try something like:

The "servers" (data server, Dlink storage) should be connected to the switch closest to the router (in your picture the 16 port switch).

Possibly put one of the smaller switches closes to the router and connect the "servers" to that switch, and then "fork out" the clients using the other switches. But only if that switch has high speed ports (gigabit).

Byt maybe this wont work due to the physical location of things?

 

[stevech]

switches like lots of packets.

 

[tipstir]

In Enterprise environment best to keep all drops to one central main manage switch. To many switches from the main switch can degrade the network performance.

You have a lot of desktops in that home or office. Non-manged switches are slower don't really perform that well. Buffer for packets even if they're larger and the switch controller could suffer from be under powered.

Invest in a real manage switch with 16, 24 or 48 ports. Feed to line drops near the PCs or use Ethernet jacks would be better.

 

[stevech]

I think a big managed switch is an overkill in a residence.
Today's inexpensive switches run at wire speeds, i.e., they aren't the limiting factor.

 

[prigat_a]

Thanks guys,
sounds like very good advises.
I will defiantly gonna try to set it in different way. thanks again,

 

[prigat_a]

btw,
what do you think about the WIFI?
we hardly connect thru wifi but it also giving different IP then the actual network,
thanks

 

[stevech]

WifI... of course, make sure it has a unique SSID like your initials, and WPA (or WEP) enabled, and a non-obvious pass phrase or key on WiFi, and a good admin password.

 

[Nerre]

I think the Linksys WiFi should be set up as an access point instead of router.

Then the physical location should be first priority, to give it the best wireless coverage.

It should preferably be connected to the central switch with a cable, but if its physical location makes that hard you can connect it to the network almost anywhere (because wireless speed is so low that it will be the bottleneck).

 

[prigat_a]

alright! been very helpful, thanks guys

 

[coxhaus]

Some things I would check. Are the small Linksys 6 port and Dlink 8 port hubs? What is their speed? You may want to replace them. If they are physically located in the same place as the Netgear 16 gig switch then upgrade to a bigger switch. I would change the wireless around. Using a second router to isolate the wireless traffic by doing double NAT is not a good idea. I would isolate the wireless with either a vlan or router not using double NAT.
The other thing is to check your wiring. Wires go bad over time and can cause issues.