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Bandwidth troubleshooting
Bandwidth troubleshooting
Centralized management, data center consolidation, and the growth of cloud applications have made WAN and Internet reliability more business-critical than ever before. Slow and congested links can have significant impact on productivity and user satisfaction, but they are often very difficult to troubleshoot because the problem can arise anywhere in the network.
LANGuardian gives you the information you need to troubleshoot bandwidth problems and make the best possible use of the available capacity. It shows at a glance how bandwidth is being used across your WAN and Internet links (and your LAN too, although bandwidth is seldom an issue in that environment). It enables you to see details of usage by specific network links, users, clients, servers, applications and websites. You can drill down to greater levels of detail, ultimately to details of the start-time, end-time, and size of each individual data transfer. If a WAN or Internet links on your network is slow or congested, you can identify the problem very quickly with LANGuardian. And, LANGuardian integrates with Active Directory, so you get reports that contain actual usernames and not just a list of IP addresses.
The bandwidth troubleshooting capabilities of LANGuardian are extremely easy to use. On the Search page, simply enter a username or IP address (subnets are also supported), and click Go. LANGuardian returns a results page containing report summaries that link to detailed reports. You can also customize reports and schedule them to run at any time. You can also create LANGuardian alerts to notify you when important thresholds are breached – often, this can help you troubleshoot problems before they arise!
LANGuardian monitors your bandwidth usage in the same unobtrusive way it monitors other aspects of network and user activity – it gathers information by analyzing the traffic flowing through your network, so there are no clients or agents to install, and there is no performance impact. LANGuardian does not block users or prevent access, it simply provides you with the information you need so that you can understand how your bandwidth is being used and manage it effectively.
With LANGuardian, you can monitor bandwidth usage on your network in many different ways. You can start with a switch port and see the traffic on that port, drilling down to details of bandwidth usage by individual client machines, users, and even individual file transfers. You can view graphs and reports by sensor, protocol, IP address and subnet. You can also filter bandwidth usage data by time and date, showing anything from short periods of a few minutes (for precise troubleshooting) up to months or years (for capacity planning).
The following are some examples of how our customers use LANGuardian for bandwidth monitoring:
- Monitor daily traffic to the video download site netflix.com.
- Measure the amount of bandwidth consumed by YouTube users.
- Monitor the amount of remote office bandwidth consumed by overnight backups synchronizing with a central server.
- Follow up on copyright infringement notices by identifying the specific user who downloaded a file containing a signature notified to the customer under DMCA legislation.
- Create a list of the websites most frequently visited by users on the network.
These are just a few examples. Why not download the LANGuardian free trial and experience its power and flexibility on your own network?
Built-in reports
LANGuardian comes with a wide range of built-in reports, as shown in the table below.
| Report | Description |
|---|---|
| Traffic Distribution | Displays a traffic distribution graph that shows the traffic for a specified time period, sensor, protocol, port, or IP address. |
| Top Talkers | Displays a table showing the most active computers on the network and the amount of data transferred by each. You can drill down to individual traffic flows and see details of the amount of data transferred in each flow, as well as the source and destination IP address and port, the start and end time, the protocol and Type of Service (TOS). |
| Top Clients | Displays a table showing the most active clients on the network and the amount of data transferred by each (a client is defined as the computer that initiates a data transfer). For each client, you can drill down to details of the server address and port, the protocol, and the amount of traffic sent and received. |
| Top Servers | Displays a table showing the most active servers on the network and the amount of data transferred by each (a server is defined as the computer that responds to a data transfer initiated by a client). For each server, you can drill down to details of the client address and port, the protocol, and the amount of traffic sent and received. |
| Top Users | Displays a report of the most active users on the network. When LANGuardian is integrated with Microsoft Windows, this report shows actual user names and departments, making it easy for network managers to troubleshoot problems reported by specific users and also to identify users who may deliberately or unwittingly be using disproportionate amounts of bandwidth. |
| Top Departments | Displays, using information from Windows Active Directory, a report of the most active departments on the network and allows you to drill down to details of individual users within that department. |
LANGuardian can generate daily email reports on bandwidth usage, containing data from standard and custom reports. It also includes a configurable Volume Overflow alert, so that you are automatically notified by email when any system on the network sends exceeds a specified amount of bandwidth usage in a specified time period.
Bandwidth Quota Monitor module
The optional LANGuardian Bandwidth Quota Monitor module provides additional bandwidth management features such as quotas, policy groups, and alerting. It also integrates with Bradford Campus Manager and other network access control (NAC) systems. Find out more.
Find out more
If you have any questions about how LANGuardian can help you with your network monitoring requirements, please contact us. If you would like to see LANGuardian in action, please try our online demo system or download a free 30-day trial to try it on your own network with your own data.
