David Newman
Internetworking equipment and security products
More about Newman's lab
Recent tests and articles
Network Test founder David Newman has been breaking computer networks for 20 years. Today he is a frequent speaker at industry conferences and an active participant in the IETF (Internet EngineeringTask Force). As a member of Network World's Lab Test Alliance, Newman has conducted numerous tests of network infrastructure and security devices. He also is the author of RFCs 2647 and 3511, the IETF specifications for firewall performance testing, as well as RFC 4814 on the contents of test traffic. Prior to founding Network Test, Newman served for nearly 10 years as director of lab testing for Data Communications magazine.
Newman is a graduate of the Johns Hopkins University and New York University.
Recent tests and articles by David Newman:
HP security blade scores impressive performance results for UDP traffic
Oct. 05, 2009
Want to get the highest possible performance out of your security device? Make sure it only handles connectionless UDP traffic – the stuff that, according to studies from CAIDA and other sources – makes up less than 5 ...
Review: HP blade takes a stab at Cisco
Oct. 05, 2009
HP has an alternative to the many security appliances that combine firewall, intrusion detection and VPN functions: Just put a single blade in the vendor's ProCurve switch and be done with it.
How we tested HP's ProCurve security blade
Oct. 05, 2009
We assessed the HP Threat Management System in terms of features, usability and performance.
3Com's high-end switch: A fast, green alternative to Cisco
Apr. 20, 2009
3Com says it has an alternative for network managers considering high-end switches from Cisco and others.
How we tested 3Com's switch
Apr. 20, 2009
We assessed the 3Com S7900E/H3C S7500E in six areas: performance with layer-2 traffic, layer-3 routed IPv4 traffic, and IPv4 multicast traffic; features; power consumption; and manageability and usability.
Juniper SRX 5800: Biggest firewall ever
Feb. 23, 2009
If the Guinness Book of World Records had an entry for "biggest firewall ever," Juniper's new SRX 5800 would certainly qualify.
How we tested Juniper's SRX 5800
Feb. 23, 2009
We assessed the Juniper SRX 5800 in terms of performance, features and usability. Because the product is marketed as a security appliance, our tests focused on security performance. We did not look at router metrics, ...
Manageability problems
Feb. 23, 2009
Our woes with Network and Security Manager began when we tried to use it to manage the SRX 5800. With eight years of experience using NSM in Opus One's labs, we were looking forward to the unification of JunOS and ...
Cisco's ASR 1000 router built for 10-year tenure
Jan. 12, 2009
With enterprises looking to consolidate data centers and devices, Cisco's new ASR 1000 series router offers a compelling message: Do more with less.
How we tested Cisco's ASR
Jan. 12, 2009
We assessed Cisco ASR 1000 performance with tests of unicast and multicast throughput and latency; high availability features, including failover and upgrades; and IPSec tunnel capacity.
Review: ASR 1000 ready to replace aging Cisco routers
Jan. 12, 2009
Throwing lots of traffic types into the WiMiX shows 11n gear adept at handling voice and ...
Oct. 27, 2008
While our single frame size throughput and latency tests are useful in describing system limits, they are not representative of what's actually seen on enterprise networks in everyday use.
How we tested the WLAN gear
Oct. 27, 2008
We assessed enterprise-grade 802.11n systems in terms of pure 802.11n throughput and latency; mixed-mode (802.11n plus both 802.11g and 802.11a clients) throughput and latency; "WiMix" traffic handling, which comprises ...
802.11n gear 10 times faster than current Wi-Fi offerings
Oct. 27, 2008
Instead, Network World set up the largest public 802.11n test ever conducted. We invited all enterprise Wi-Fi vendors to supply not one but eight 802.11n access points, along with controllers if needed.
Siemens: Wins green competition
Oct. 27, 2008
Efficient power usage is the biggest differentiator between the Siemens HiPath and other enterprise 802.11n systems.
Bluesocket: Best overall product
Oct. 27, 2008
Bluesocket's BlueSecure system is a good choice for enterprises looking to keep a lid on latency and jitter – both concerns with real-time voice and video.
Motorola: Novel architecture opens the door to WiMAX
Oct. 27, 2008
Motorola probably wishes we'd tested its AP-7131 just a few weeks later. We hit a few performance issues with the software image Motorola supplied, including one that prevented us from measuring throughput of short ...
Vendors take different approaches to WLAN design
Oct. 27, 2008
Architecturally, we saw multiple approaches to wireless LAN design.
Big players missing in action
Oct. 27, 2008
Almost as notable as the remarkable results in this test are some of the big names that didn't show up: Major WLAN vendors Aruba, Cisco and Trapeze all declined to participate in this project.
Aerohive: Fast, but a little rough around the edges
Oct. 27, 2008
Like many relatively new products, Aerohive's HiveAP 340 showed both extreme promise and a few rough edges.
How we tested Cisco's switch
Sep. 01, 2008
We assessed the Cisco Nexus 7000 in six areas: high availability (HA) and resiliency; performance with layer-2 traffic, layer-3 IPv4 traffic, and IPv4 multicast traffic; features; and manageability and usability. A ...
Cisco Nexus 7000 aims for data center dominance
Sep. 01, 2008
Building a big data center and looking for a switch to match? How do 256 10G Ethernet ports and nearly 1.7 terabits of capacity sound?
Juniper switch proves to be credible choice
Jul. 14, 2008
Cisco take note: Juniper's new EX 4200 switch not only fills a hole in a leading competitor's product line, but also represents a credible alternative for enterprise access switching.
How we tested Juniper's switch
Jul. 14, 2008
We assessed Juniper's new enterprise switch using the same methodology we previously used to test other vendors' access switches. The one exception, as noted below, was in our use of IGMPv2 instead of IGMPv3 this time ...
Unified communications: Is your network ready?
Apr. 28, 2008
Here are five questions for enterprise network managers to bear in mind when considering UC deployment:
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