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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.

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

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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!

Dropped Packets

TAP vs SPAN

Challenge: My security tool is missing packets

Monitoring and security tools need complete packet data to properly analysis the task at hand. If a threat is missed because of incomplete data or latency is introduced into the network, the solution has failed. Your options to provide these packets are spanning a port from your switch or utilizing a network TAP.

Dropped packets or packet loss can occur when packets of data traveling across a network fails to reach their destination. Packet loss is can be caused by network congestion, hardware capacity and bottlenecks, errors in data transmission, or overloaded devices.

Packet loss is measured as a percentage of packets lost compared to packets sent. The Transmission Control Protocol (TCP) is the standard that defines how to establish and maintain a network conversation through which application programs can exchange data. TCP detects packet loss and performs retransmissions to ensure reliable messaging. Monitoring packet loss is a fundamental best practice for network performance.

Network congestion, hardware capacity, bottlenecks and overloaded devices can all be symptoms of an over reliance on SPAN ports for network monitoring. SPAN is commonly known to drop packets if a port is oversubscribed. The issue arises when the total amount of traffic aggregated from the source ports exceeds the physical limitations of the destination port, it results in some dropped packets on the destination port.

This does not cause any switch performance degradation or disruption or traffic flow on the source ports. The only affected port is the destination port, and it drops packets on a first in first out (FIFO) basis once the egress buffer limit is exceeded.

• Monitoring tools may miss packets due to SPAN port over-subscription

• SPAN will not pass corrupt packets or errors (bad packets) and are dropped

Solution

Network TAPs ensure no Packet Loss 

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

•  Purpose-built to pass 100% full duplex traffic

•  100% network visibility

•  Pass every packet, including physical layer errors

•  Support jumbo frames.