So I just started a job for a new company. One of the first things I did was look for easily resolvable issues on the network. Some symptoms to look for are any packet loss or high latency on a local LAN link, CRC errors on your switch ports and router ports, ultra slow RDP connections, […]
So for the past couple of days I have been playing cable monkey at work. I found a hub in our server room that was running 12 servers with one uplink to a switch. Keep in mind this is a hub. Hubs should never be put on a business network now a days especially with […]
We have been running into performance issues in our datacenter lately that doesn’t show many symptoms except that things just don’t seem to be running fast enough. Mostly I have had a feeling a while that something wasn’t right. We have also been having slowness issues with our NAS, in packet captures we have seen […]
I have setup a Snort box on our network to watch for malicious traffic on segments of our network. In a switched network the only way to watch the traffic without throwing in a hub is to use SPANing. Here is a whitepaper on the topic for you to read.
Basically the command on most newer […]
This post is about setting up your switchports to support data and voice on different VLANs. This gives you the ability to put all your phones on a different VLAN for QOS but still run your computer or second computer through another port on your phone. I have used this config on switch ports and […]
We got the Cisco 6509 with the 96-port blades up and running. One thing that we ran into is that when you do POE to a legacy POE device you cannot run it through the Cisco 96 to 48 port patch panel. We were planning on running all of our Aironet 1231s using POE on […]
One thing that I don’t think Network Admins do enough is backup their configs. Most Sysadmins backup their servers, you back up your important documents on your laptop. How many people backup the configs on your network gear. Granted their is less of a risk with a switch or router because they don’t have hard […]
I got another comment on my earlier blog Click Here on different network gear working well together. Most of my experience is with straight Cisco gear but in dealings with various equipment from various vendors I would say just stick with a standard. If you want to run all 3COM switches or all Intel switches […]
I am working on setting up a new network that will be support a few hundred people in a brand new building. We are having is professional cabled and everything run up to our server room. To support these people we are putting a Cisco 6509-Neb-A in place which will allow us to put everything […]
Earlier I talked about the importance of running Cisco products on your network. http://blog.super-networking.net/?p=3 I had some questions about sizing and options. Cisco make a wide variety of products and these products have may models that are sized/priced for different sized businesses. The #1 important product to have with any size business is a firewall […]
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