Security Now
Security is top-of-mind everywhere, especially right here where Juniper experts share their thoughts on the latest security breakthroughs and product advancements
Showing results for 
Search instead for 
Do you mean 

PoE and PoE+ Capabilities on the EX2200 Ethernet Switch

by Juniper Employee on ‎06-01-2010 10:28 AM

Today’s enterprise network is likely a converged environment, in which not just data but voice, video and other types of traffic flow over the same IP network.  In these networks, the ability to support Power over Ethernet (PoE), which provides power for IP-enabled devices via the network, is a critical requirement.

 

The EX2200 line of Ethernet switches not only supports PoE, it is also capable of supporting the recently ratified PoE+ standard, which delivers higher levels of power for more demanding devices.

 

The original PoE standard (without the “+”), defined as IEEE 802.3af and ratified in 2003, specifies the delivery of a regulated 15.4 watts at the output from a Power Sourcing Equipment (PSE) device over a standard copper Ethernet network cable.  The power is utilized by connected powered devices (PDs) such as VoIP phones, wireless access points (AP) and IP-based video cameras.  The ability to deliver power over the same Ethernet LAN cables used to transmit data has eliminated the need to attach PDs to electrical outlets.  This not only simplifies device deployment, it also lowers the cost of deployment, provides greater flexibility, and enables remote management.

 

The PoE+ standard, recently ratified as IEEE 802.3at, was driven by the wide popularity of PoE and the emergence of next-generation devices such as IEEE 802.11n access points, pan-and-zoom IP video cameras, video conferencing equipment and thin clients that require more power than the 15.4 watts provided by PoE.  To accommodate these PDs with higher power requirements, the PoE+ specification provides up to 30 watts of power as defined in the 802.3at standard.

 

Naturally, the new standard will raise questions about backward compatibility and whether IEEE 802.3af will interoperate with IEEE 802.3at.  In the case of an IEEE 802.3af (PoE) PD connected to an IEEE 802.3at (PoE+) PSE, the device will operate normally but won’t be able to take advantage of the PoE+ standard’s advanced power management.  Conversely, when an 802.3at (PoE+) PD is connected to an 802.3af (PoE) PSE, the device will work provided it can operate within the lower power mode, possibly with reduced performance.

 

The EX2200 Ethernet switch supports both IEEE 802.3af devices as well as 802.3at PDs that are becoming more prominent in today’s enterprise network, delivering a complete solution that accommodates the vast majority of branch and low-density wiring closet deployments.

 

Comments
by Telnet-1
on ‎02-17-2013 07:16 AM

on EX2200-P , is POE+ supported on all ports ?   its power supply is 405 Watt only ?

 

by Vaško Lubo
on ‎04-16-2013 01:10 PM

PoE EX2200 me to work. Powered up the connected device that has a consumption of 11.5W voltage 8-30V. Several times I have it set to factory settings. Set the web interface. I measured the voltage on the brown wires Ethernet interface and nothing. Help me.

Announcements

Juniper Innovators Circle
Labels
About the Author
  • Andrew is a Juniper Distinguished Engineer responsible for the architecture of Juniper's network management user interfaces.
  • Asher Langton is a senior software engineer and malware researcher on Juniper's Sky ATP team.
  • Aviram Zrahia is a consulting engineer at Juniper Networks and an industry researcher of cyberspace. He holds a CISSP and GCIH certifications, as well as a bachelor's degree in computer science and MBA in management of technology, innovation, and entrepreneurship. He is also a research fellow in the Blavatnik Interdisciplinary Cyber Research Center (ICRC) at Tel Aviv University, currently focusing on the domain of threat intelligence sharing.
  • Bill is the Director of Federal Certifications and Policy at Juniper Networks. In this role, Bill focuses on several areas unique to the needs of Federal Government customers, including product certifications, IPv6, and security. Bill came to Juniper Networks in January 2008 after more than 20 years in the IT community working with commercial enterprise customers, service providers, and the US Federal Government. Bill started his career as an engineering officer in the US Air Force after graduating with a Bachelor of Aerospace Engineering from the Georgia Institute of Technology. Bill has an MBA from the Wharton School at the University of Pennsylvania.
  • Brad Minnis, CPP is the Senior Director of Corporate Environmental, Health, Safety & Security for Juniper Networks, Inc. based in Sunnyvale, CA, where he is responsible for strategic design, implementation and management of the company’s security, safety, environment, crisis management and business continuity functions. He also leads the company’s efforts in corporate citizenship and sustainability, and manages the Corporation’s government-related security programs. Mr. Minnis has over 30 years experience in the Silicon Valley and has managed EHSS operations for a number of high tech companies, including Juniper Networks, 3Com Corporation, and National Semiconductor Corporation. Mr. Minnis’ specialties include security management, supply chain and product integrity, anti-counterfeit, occupational health and safety and crisis management. In his role as Cyber Incident Response Team Leader for Juniper, Mr. Minnis has managed numerous high impact cyber-related incidents and cross-functional responses. Mr. Minnis served for ten years in the United States Navy and has served in leadership positions the International Security Management Association (ISMA) and ASIS International, serving as Chairman of the San Francisco Chapter in 2003. He has also co-written several publications on software integrity assurance and supply chain security with organizations such as SAFECode. Mr. Minnis is certified as a Protection Professional by the Professional Certification Board of ASIS International and attended the University of Connecticut, where he received two certificates in Environmental, Health and Safety
  • Craig Dods is the Architect for Security within Juniper Networks' Strategic Verticals. He currently maintains multiple top-level industry certifications including his JNCIE-SEC, holds multiple networking and security-related patents, as well as having disclosed multiple critical-level CVE's in a responsible manner. Prior to joining Juniper, Craig served as IBM's Managed Security Services' Chief Security Architect, and held previous security roles at Check Point Software Technologies and Nokia.
  • François Prowse is a Senior Systems Engineer for Juniper Networks, based in Brisbane Australia. Francois joined Juniper in 2006 as part of the New Zealand SE team, subsequently relocating to Australia. Prior to Juniper, Francois worked for four years at Alcatel in both operational and architectural roles, being jointly responsible for the construction of New Zealands' largest MPLS core network. Prior to Alcatel, Francois worked at UUnet, focusing on core network expansion in Europe. In all previous roles JUNOS has been the driving factor behind day to day operations, providing him with over 8 years of operational experience. Francois is a Juniper Networks Certified Internet Expert (JNCIE #144) which he obtained prior to joining Juniper Networks.
  • Greg Sidebottom is a Senior Engineering Manager in the Identity and Policy Management business unit at Juniper Networks. Greg has spent the last decade plus conceptualizing, architecting, designing, and leading the implementation of Juniper's SDX and SRC families of policy based service management applications. Previous to this, Greg held positions in the software and networking industries at Siemens, Cognos, Nortel, GTE labs subsidiary MPR Teltech, and the Alberta Research Council. Greg is an author of eight invention disclosures resulting in two patents issued and three pending. Greg holds a B.Sc. in Computer Science for the University of Calgary and an M.Sc. and Ph.D. in Computing Science from Simon Fraser University.
  • Jennifer Blatnik is vice president of cloud, security and enterprise portfolio marketing at Juniper Networks with focus on enterprise deployments of security, routing, switching, and SDN products, as well as cloud solutions. She has more than 20 years of experience helping enterprises solve network security challenges. Before joining Juniper, Jennifer served multiple roles at Cisco Systems, Inc., including directing product management for security technologies aimed at small to medium enterprises, as well as supporting managed services, cloud service architectures and go-to-market strategies. She holds a B.A. in Computer Science from University of California, Berkeley.
  • Jim Kelly, Senior Product Line Manager – CTP Products Juniper Networks. Jim Kelly is the senior product line manager for the CTP products where he is responsible for the CTP product direction, marketing and circuit emulation applications within Juniper Networks. Mr. Kelly has more than 28 years of experience in the networking industry in technical roles, sales, marketing, and product management positions. He started his career in the United States Air Force. He has worked for Wang, Digital Telecom Systems, American Airlines, Network Equipment Technologies, Carrier Access, and Nortel Networks. He started Juniper Networks federal DoD sales in July 2000 and joined Juniper Networks again in October 2005 through the acquisition of Acorn Packet Solutions where he was the director of sales and marketing.
  • Justin Ryburn is a Consulting Engineer at Juniper Networks. He holds an MBA and a MS in IT Management from Webster University as well as numerous industry certifications. Justin contributed content for Cyber Forensics (Auerbach Publishing, 2007), wrote Juniper's Day One Guide on Deploying BGP Flowspec, and has spoken at numerous industry conferences on BGP Flowspec. Prior to joining Juniper, Justin held various operations, engineering, and sales engineering positions over his 20-year career with companies such Savvis, Nortel, XO, and Charter.
  • Mark Belk is the National Government Chief Architect at Juniper Networks
  • 30 Years in Book Publishing, 20 years in Technical Book Publishing, including Apple Developer Press, Adobe Press, Nokia Developer Books, Palm Books, and since 2001, almost 10 years as consulting editor/editor in chief for Juniper Networks Book. Joined the company and started the Day One book line and in 2011, the new This Week book line.
  • Solutions Marketing Sr Manager
  • Jonathan Looney is a Senior Staff Courseware Developer at Juniper Networks. Before joining Juniper, he performed network engineering for a large enterprise, a regional ISP, and an application service provider (ASP). The holder of several industry certifications, he enjoys the freedom his job at Juniper gives him to both continually learn and also to share his knowledge with others through a wide range of media.
  • Scott is the Director of Product Marketing for Mobile Security at Juniper Networks. In his 20+ years in high tech, Scott has worked on Mobile and Endpoint Security, Network Security, IPS, Managed Services, Network Infrastructure, Co-location, Microprocessor Architecture, Unix Servers and Network Adapters. He has held leadership roles at Check Point, McAfee, Symantec, Exodus Communications, Cable & Wireless, Savvis, and HP.
  • Sherry Ryan is IT Vice President and CISO of Juniper Networks. Previously, Sherry held similar positions at Blue Shield of California, Hewlett-Packard, Safeway and Levi Strauss where she established and led their information security programs. Sherry holds the Certified Information Security Manager (CISM) certification from ISACA and the Certified Information Systems Security Professional (CISSP) certification from ISC2. She is a member of the High Tech Crime Investigation Association (HTCIA) and the Information Systems Security Association (ISSA). Sherry has a bachelor's degree in Business Administration from the University of Redlands, and earned her MBA from the College of Notre Dame.
  • Network/Application Vulnerability Researcher. Having interests in Photography as well.
About Security Now

Discussing a wide range of topics impacting enterprises and
data center security.

Subscribe RSS Icon


Our Bloggers

Jennifer Blatnik
Vice President
Enterprise Portfolio Marketing

Profile | Subscribe

Ritesh Agrawal
Director
Software Engineering

Profile | Subscribe

Scott Emo
Director
Product Marketing

Profile | Subscribe

Bill Shelton
Director Field Sales

Profile | Subscribe