There are many ways to monitor devices: netflow, span port, switchport and so on. Today I will explain how to monitor bandwith, CPU, of routers and switches using SNMP and Cacti. Simple Network Management Protocol ( SNMP) is an “Internet-standard protocol for managing devices on IP networks. Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, and more.” It is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention. SNMP is a component of the Internet Protocol Suite as defined by the Internet Engineering Task Force (IETF). It consists of a set of standards for network management, including an application layer protocol, a database schema, and a set of data objects.

• Netgear Switch Gs105

Netgear Switch Gs105

Cacti is a complete network graphing solution designed to harness the power of RRDTool’s data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices. Step #1: Configure your snmp device snmp-server community c1sc0zine RW Step #2: Create your tree Go to “Management” then “Graph Trees” and click on “Add” link. Compile the “Name” field and click the “Create” button.

Step #3: Add your device Go to “Management” then “Devices” and click on “Add” link. Compile the “Description”, “Hostname” and “SNMP Community” fields, select the “Cisco Router” Host Template, then click the “Create” button. Step #4: Create your graph Click on “Create Graphs for this Host”, select what you want monitor and click on “Create” button. In this tutorial I have decided to monitor Fastethernet0/0, Fastethernet0/1, Dialer1 and CPU. Step #5: Move your device to your tree Go to “Management”, “Devices”, select the device with the checkbox and as “Choose an action” select “Place on a tree” and click on the button.

Step #6: View your graph After 15 minutes you can see the graph in the “graph” tab. Before this time you don’t see nothing. Below the video that explain how configure Cacti: Remember: Generally the graphs will be updated each 5 minutes! Plugins that could be useful are:. thold: alerting of data found within any graph. monitor: displays the host’s status by using small icons. Intelectron motion detector security light manual. Green for up, Red for down, and Blue for recovering.

realtime: a method to view Cacti graphs with a resolution of upto 5 seconds. weathermap: a network visualisation tool, to take data you already have and show you an overview of your network in map form. References:.

I'm looking for a gig switch that can give me per-port traffic stats for home use. I need a min of 8 ports, but would probably buy a 16 port (maybe even 24 port, depending on price). I'd like SNMP stats available, but even if the only view in to the stats were a web interface on the switch, that would be fine for my needs. The TP-LINK TL-SG2216 16-Port Gigabit switch looks attractive for the price ($130 US). I'm wondering if anyone has this device (or another model from this product line), or if anyone can suggest an alternative that's near this price/port range? I'm looking for a gig switch that can give me per-port traffic stats for home use.

I need a min of 8 ports, but would probably buy a 16 port (maybe even 24 port, depending on price). I'd like SNMP stats available, but even if the only view in to the stats were a web interface on the switch, that would be fine for my needs.

The TP-LINK TL-SG2216 16-Port Gigabit switch looks attractive for the price ($130 US). I'm wondering if anyone has this device (or another model from this product line), or if anyone can suggest an alternative that's near this price/port range? I personally never used any of their switches but have heard good things about them and the price seems right. You could pick one up from a company (like Amazon) that has a decent return policy. Personally I use NetGear GS108T (Which is the Smart / Managed Version) Switches as well as Cisco Small Business Switches in my house and I've had no problems with them. I have however had some issues with the Netgear POE Switches, they don't play well with their other switches and their firmware is / has been very buggy which is why I went with Cisco. So for the money I would check out something like this Cisco 10 Port Managed.

Sure it is a little more money but I am a firm believer that some things are worth paying extra for! I've had issues with the Small Business Cisco switches. In particular there was one 48 port POE gigabit switch that would randomly lose its configuration.

The lack of a real serial port was also a huge minus in my book as well (I hate trying to track down what IP the switch assigned itself). Also take note those Small Business Switches are Linksys switches with a Cisco label on them. If you want a 'real' Cisco switch, go get a Catalyst. The HP listed above is better than anything listed here.

We happen to use HP Procurve at work. I have that exact switch in a remote office and know for a fact it will do per-port traffic statistics (Though I think this is common with managed switches). I personally never used any of their switches but have heard good things about them and the price seems right. You could pick one up from a company (like Amazon) that has a decent return policy. Personally I use NetGear GS108T (Which is the Smart / Managed Version) Switches as well as Cisco Small Business Switches in my house and I've had no problems with them.

I have however had some issues with the Netgear POE Switches, they don't play well with their other switches and their firmware is / has been very buggy which is why I went with Cisco. So for the money I would check out something like this Cisco 10 Port Managed. Sure it is a little more money but I am a firm believer that some things are worth paying extra for! Can you let me know what issues you have had with the Netgear POE switches and which models you have used? I currently am using 2 and have no issues. I use the GS108PE and also have 2 GS116 and a 2 GS108 in my network.

Id like to report back to Netgear your issues. Thanks, Bob Silver Netgear Networking Advisor. Can you let me know what issues you have had with the Netgear POE switches and which models you have used?

I currently am using 2 and have no issues. I use the GS108PE and also have 2 GS116 and a 2 GS108 in my network. Id like to report back to Netgear your issues. Thanks, Bob Silver Netgear Networking Advisor Bob - This was a few years ago, I bought a Netgear GS724TP which Netgear even admitted to me wasn't really ready for prime time at the time, they said that they did not make the switch or the firmware and I had issues getting VLANs working with my other Netgear switches, it would randomly reboot itself and was not stable at all.

Again this was some time ago so maybe they've worked out the issues? I couldn't deal the with instability even in my home network so I went with the Cisco SG's and they've been running flawlessly since day one. As with just about every thing else in life these are personal preferences and completely subjective. I'd take a Cisco (even their Linksys version) over Netgear or HP any day. I'm looking for a gig switch that can give me per-port traffic stats for home use. I need a min of 8 ports, but would probably buy a 16 port (maybe even 24 port, depending on price). I'd like SNMP stats available, but even if the only view in to the stats were a web interface on the switch, that would be fine for my needs.

The TP-LINK TL-SG2216 16-Port Gigabit switch looks attractive for the price ($130 US). I'm wondering if anyone has this device (or another model from this product line), or if anyone can suggest an alternative that's near this price/port range? I've had the TL-SG2424 for few years now and I'm very happy with it. They're excellent switches for the price. RMON and SNMP are both supported for stat gathering. I personally never used any of their switches but have heard good things about them and the price seems right. You could pick one up from a company (like Amazon) that has a decent return policy.

Personally I use NetGear GS108T (Which is the Smart / Managed Version) Switches as well as Cisco Small Business Switches in my house and I've had no problems with them. I have however had some issues with the Netgear POE Switches, they don't play well with their other switches and their firmware is / has been very buggy which is why I went with Cisco. So for the money I would check out something like this Cisco 10 Port Managed. Sure it is a little more money but I am a firm believer that some things are worth paying extra for! Thanks for the suggestions! I have a friend that recently bought some NetGear smart switches on ebay for prices in my price-range, so they are on the table now! I'm also going to look in to the Cisco stuff - I didn't know they had anything in that price-range.

I don't mind if they are Linksys or Cisco - I just need reliable with stats! I'd get a HP 2910al J9145A. You can pick one up on ebay for roughly $300 or message me I've got 3 of them I'm not using. They are full layer 3 switches with SNMP stats and you can do pretty much anything you want with them.

They also have optional 10Gb as well as next day lifetime warranty. If you have a problem with it HP will ship you a new one and you will have it by 10:30am the next morning. Also if you make config changes you don't have to reboot the switch, which is nice. Thanks for the suggestion, but I think $300 is a little out of my range right now. I'll keep them in mind for the future though!

I've had issues with the Small Business Cisco switches. In particular there was one 48 port POE gigabit switch that would randomly lose its configuration. The lack of a real serial port was also a huge minus in my book as well (I hate trying to track down what IP the switch assigned itself). Also take note those Small Business Switches are Linksys switches with a Cisco label on them. If you want a 'real' Cisco switch, go get a Catalyst. Good to know - I'll keep that in mind and do some digging around for additional feedback! I used to buy Dell PowerConnect switches but now have purchased and replaced them with HP 1810-24G v2 switches purchased on Amazon.

I found the low-end (i.e. Affordable for home use) Dell switches purposely crippled their web traffic statistics. (showing only one direction of traffic). The HP switches have proven to be reliable, don't cause Sonos packet storms (a problem I had with the previous Dell generation of switches), and haven't needed a software upgrade in 6 months. They also have an ability to do fiber uplinks which is useful for longer distance than cat5e/cat6 can handle.