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Visibility Solutions

Garland Technology is committed to educating the benefits of having a strong foundation of network visibility and access. By providing this insight we protect the security of data across your network and beyond.

Resources

Garland Technology's resource library offers free use of white papers, eBooks, use cases, infographics, data sheets, video demos and more.

Blog

The TAP into Technology blog provides the latest news and insights on network access and visibility, including: network security, network monitoring and appliance connectivity and guest blogs from Industry experts and technology partners

Partners

Our extensive technology partnership ecosystem solves critical problems when it comes to network security, monitoring, application analysis, forensics and packet inspection.

Company

Garland Technology is dedicated to high standards in quality and reliability, while delivering the greatest economical solutions for enterprise, service providers, and government agencies worldwide.

Contact

Whether you are ready to make a network TAP your foundation of visibility or just have questions, please contact us. Ask us about the Garland Difference!

Duplicate or Altered Packets

TAP vs SPAN

Challenge: How to avoid duplicate or altered Packets?

Duplicate packets are commonly seen when packets are traversing multiple routers and those switch or routers are copying traffic to the SPAN/mirror port. 

You can SPAN packets in or out of a switch port, but typically most applications require a copy of both sides. SPANs are known to result in trace files with duplicated packets when the SPAN port is set up to capture both ingress and egress traffic flows. This common problem when both the ingress and egress ports are spanned, end up sending duplicate packets to the monitoring tool, which becomes a whack-a-mole type headache.

• SPAN can change the timing of the frame interactions, altering response times
• The timestamps are can read different but the packet contents are the same
Can duplicate packets if multiple VLANs are used

Solution

Network TAPs guarantee tools complete packet data

Network TAPs ensure no duplicated or altered packets, by providing full-duplex copies of packet data, providing a complete picture for monitoring and security tools to analyze network traffic.

Network TAPs do not alter the time relationships of frames. Spacing and response times are especially important with VoIP and Triple Play analysis including FDX analysis.

Network TAPs:

•  Purpose-built to pass 100% full duplex traffic

•  100% network visibility

•  Pass every packet, including physical layer errors

•  Support jumbo frames.