-
Redundant routers and network segmentation
This tip investigates a routing configuration using a router for each switch -- or redundant router architecture -- on the WAN, and discusses a common failure scenario that is somewhat difficult to...
-
Redundancy on the WAN: Routers for backup circuits
When improving redundancy with a backup WAN circuit between two sites, the network architect must decide whether there should be two routers, with one for each circuit, or whether both circuits sho...
-
Optimizing WAN bandwidth
There are several alternatives available to help solve the bandwidth dilemma.
-
Network challenges and considerations: Bandwidth utiliz
Network challenges and final considerations are discussed in this insightful series on bandwidth utilization.
-
Disabling IPv6 in Windows Vista -- Pros and cons
Windows Vista features a dual stack, running IPv4 and IPv6 simultaneously. If your organization is still using only IPv4, there are IPv6 performance and security problems that can be countered by s...
-
Configuring a VRF
Doug Downer demonstrates how to configure a VPN Routing and Forwarding (VRF) in an instance where a service provider needs to keep Internet services separate for two different clients on shared dev...
-
Frame transmission: Bandwidth utilization series
Frame transmission on your network is explained in this insightful series on bandwidth utilization.
-
Network planning: Bandwidth utilization
Network planning is explained in this tip on bandwidth utilization.
-
Denial of service and bottlenecks: Bandwidth utilizatio
Denial of service and bottlenecks on your network are explained in this insightful series on bandwidth utilization.
-
How much bandwidth is enough?
Bandwidth is discussed in this tip on fact versus fiction and how it can affect network performance.
-
IPsec VPN clients
Here's a list of IPsec clients that run on many systems. See what they have to offer and what they are often missing.
-
Application performance management
Application performance management consists of managing applications before they are deployed (impact readiness), managing the applications that are already deployed (discovery and profiling), and ...
-
Modeling can be key to capacity planning
Planning for the future of your network sometimes requires rigorous planning and modeling. In this tip, Ed Tittel shows how a free modeling tool just may come to your rescue.
-
Troubleshooting WAN performance issues
Isolating the root cause of a WAN performance issue is critical, and having the right tools or managed services in place is imperative. Those tools can help determine whether the root cause of the ...
-
QoE: Why technical benchmarking is not enough
Take an in-depth look at metrics truly targeted at QoE. The first thing to say is that in terms of customer priorities, our respondents got it wrong. Any number of studies have shown that end users...
-
Application performance management: Runtime monitoring
You can deduce application performance and availability by monitoring infrastructure performance or by reporting on the experience of the end user. However, with sophisticated, dynamic application ...
-
QoE benchmarks or diagnostics for application performan
The importance of managing (monitoring as well as actively managing) networked applications for QoE should be all but self evident. EMA data from 2007 (Figure 1) showed that a healthy 72% of respondents...
-
Application performance management: Developing a strate
Application performance management is a critical task because application delivery can play a critical role in both revenue generation and corporate functionality. In this tip, learn how to develop...
-
VPN client alternatives: PPTP
Lisa Phifer discusses one widely available type of "free" client: those used in Point-to-Point Tunneling Protocol VPNs.
-
Understanding the network application environment
Understanding the network application environment is critical to application performance management. In this tip, learn how application discovery and classification, network analysis, and business ...
-
Meld WAN optimization, management and security together
By searching for solutions that put WAN optimization, management and security together, enterprise IT can reduce company bottom lines and complexity.
-
Enterprise WAN optimization: How applications benefit
These are five ways enterprise WAN optimization technology helps overcome productivity and application issues organizations face in today's workforce.
-
Why WAN security architectures must evolve
WAN security architectures must evolve to keep pace with workplace trends. Use these tips to make sure WAN optimization isn't accelerating malware.
-
Basic wide area network optimization techniques
Adding bandwidth to your network does not always fix slow applications problems. Consider these WAN optimization techniques first.