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IP Video Surveillance Solutions

Video surveillance is an integral part of modern security systems, found in premises ranging from airports to shopping malls, corporate buildings to train stations. It proves a great deterrent to malicious behavior and an excellent tool in solving the mystery of past misdemeanors.

In this digital world, security has also embraced the advantages of instant access to images stored and retrieved on computers. Allied Telesis offers a diverse portfolio of products, and a suite of features, that can enhance the ability to securely and reliably transport security video footage across an IP network. IPTV surveillance systems generally involve a number of devices — IP cameras, servers, and clients — and involve multicast technology to deliver video streams to every intended recipient.

Following are a variety of reference designs for Allied Telesis-based network solutions that support IP video surveillance. The smaller installations are based on Layer 2 switching technology, while the larger scenarios include options for a Layer 3 routed environment.

The pure Layer 2 approach is preferable in small to medium installations, due to simplified network configuration and maintenance. It does not require a complex multicast architecture involving multicast routing protocols. However in larger systems, it is likely that the video data will be transported in an environment divided into separate IP subnets, in order to enable scalability and provide a network that is both robust and easily managed.

Small-Sized Network

In a Point of Sale (POS) and security camera installation with a limited number of cameras, a single or small group of Allied Telesis WebSmart Power over Ethernet (PoE) switches is an ideal solution because of its simplified network configuration and maintenance requirements.

Example Scenario
The retail store is a single unit within a strip mall. To prevent shoplifting and employee theft/fraud, the owner installs a surveillance system. This improves employee and customer safety as well as deters shoplifting. This type of project requires multiple cameras due to the layout of the store. Most of the cameras are installed inside the store, with a few cameras installed outside to monitor the front and rear entrance. The physical layout of this site is small, so all of the cameras are connected to a single switch.

The security network uses existing Internet connectivity, but must be kept separate from the POS system installed in the store — a requirement of the POS vendor that provides support for that system.

Benefits
The Allied Telesis GS950 PS Series of high performance, eco-friendly Gigabit WebSmart switches provides simple yet secure management features at an affordable level, improving the delivery of converged data. The AT-GS950/16PS provides standards-based IEEE 802.3af PoE to all 12 10/100/1000T ports at 15.4W. It also supports IEEE 802.3at PoE+ for up to six ports at 30W. For high-definition cameras, automatic doors and VoIP phones, the GS950 Series supports double the amount of MAC addresses supported by competitive products — double the number of devices may be connected to the network, ensuring that infrastructure installed today will support future needs. Security protocols such as 802.1x, RADIUS and port MAC address security administration facilitate the protection of the network for both local and remote connections.

Reference Solution
The diagram above shows the AT-GS950/16PS WebSmart switch connected to 10-12 surveillance cameras, using standard CAT5e copper cable operating at 1000Mbps. A computer is connected to the switch via a Gigabit Ethernet connection on the uplink port of the switch that provides monitoring capability on all cameras connected to the switch. A Windows 2008 Server is connected to the switch, using a Gigabit Ethernet connection on the uplink port of the switch. Recorded video is stored on a hard drive that can be viewed on the computer. The switch can simultaneously power cameras, cash registers, VoIP phones and barcode scanners. An Uninterruptable Power Supply (UPS) is connected to the switch, providing continuous power in case of a power failure in the retail store.

Other Potential Uses for this Architecture

  •     Retail stores and POS (powering cameras, cash registers and kiosks)
  •     Branch offices
  •     Restaurants

 

Medium-Sized Network

In medium-sized IP Surveillance networks, or a LAN, the video surveillance system is typically distributed with one or more switches in each location connected together.

Example Scenario
A corporate building spans multiple offices across an area. which requires a reliable, secure, scalable and easy-to-configure network. It requires IP cameras on a high performance, reliable converged Ethernet/IP service network. Video is isolated from voice (VoIP) as well as employee administration data traffic, but all services use the same physical, high performance, reliable Ethernet network. This saves initial capital and reduces the costs of maintaining and supporting multiple physical networks.

Each office desk requires an IP phone as well as network ports for a PC and networked printer. In addition, there are IP phones and many LAN ports throughout the building. A camera is placed in every entrance as well as several in key hallways, the parking lot, cafeteria and other public places.

Benefits
The Allied Telesis x610 Series is an advanced Layer 3+ stackable switch for the access and aggregation network with Gigabit service interfaces and a 10 Gigabit uplink interface where resiliency, reliability and high performance are the key requirements. Allied Telesis Virtual Chassis Stacking (VCStack™) provides resiliency by allowing the creation of a single “virtual chassis” from multiple x610 Series devices. It allows management of the stack as a single node on the network, greatly simplifying management tasks. Comprehensive low-latency wirespeed QoS provides flow-based traffic management with full classification, prioritization, traffic shaping and min/max bandwidth profiles. The x610 Series embeds a RADIUS server, enabling network access control through 802.1x without any added NAC device.

The Allied Telesis x510 Series of stackable and scalable switches offers another cost-effective alternative, with the same features and capabilities — on a smaller scale and at a lower price.

The 8000S Series of high performance, fully managed and stackable Fast Ethernet switches provides advanced enterprise features at an affordable investment level to improve the delivery of converged data. The AT-8000S/24POE provides standards-based IEEE 802.3af Power over Ethernet (PoE) to support video surveillance and VoIP applications. The switch supports administration of port-based MAC address security, facilitating the protection of the network for both local and remote connections.

Featuring the industry-standard AlliedWare Plus™ CLI and Web interface, the advanced features of the x610, x510 and 8000S Series are accessible to a wide range of system administrators. The CLI and Web interface significantly reduce learning time and minimize the cost of deployment.

To ensure the protection of data, it is important to control access to the network. Protocols such as IEEE 802.1x port-based authentication guarantee that only known users are connected to the network. Unknown users who physically connect can be isolated to a pre-determined part of the network, offering guests such benefits as Internet access while ensuring the integrity of private network data.

Reference Solution
The diagram above shows the x610 Series at the core of the network and 8000S Series switches at the access edge, providing PoE to surveillance cameras throughout larger schools and retail stores. Alternatively, x510 PoE models could be used on the edge, providing even more PoE power (PoE+) and resilience, or as a cost-effective solution instead of the x610 Series.

Other Potential Uses for this Architecture

  •     Schools
  •     Large Retailer
  •     Sports Stadium
  •     Shopping Malls

 

Large-Sized Network

In large IP Surveillance networks, or a metro-area network, the video surveillance system is typically overlaid on an infrastructure that has been designed to carry multiple applications and services. Such a network, supporting a significant number of end-users, needs to be very reliable, manageable and scalable. These requirements are best met by a network design in which different services are partitioned into separate VLANs and transported over resilient rings that are protected by an extremely fast failover mechanism.

Example Scenario
A large Town Center shopping and entertainment district spans multiple buildings, spread across a campus that requires a highly resilient, reliable, secure and high performance network. A campus consisting of four buildings would require 12-16 cameras on each floor of a typical four-story building. Many cameras would be installed inside buildings, with some installed outside to monitor the entrances. The physical layout of this site would be large, so cameras on each floor would be connected to switches located on each floor. Every switch on each floor would be connected to another switch, creating a stackable solution that can be managed by a single IP address. These Power over Ethernet Plus (PoE+) switches would be connected to a modular Layer 3 switch, providing a highly resilient, secure and easy-to-manage network.

Benefits
The Allied Telesis SwitchBlade® x908 is an advanced Layer 3+ modular switch for the modern enterprise network core where resiliency, reliability and high performance are the key requirements. Allied Telesis x510 Series advanced Gigabit Ethernet Layer 3+ stackable switches support PoE+. The SwitchBlade x908 provides port and speed flexibility by using expansion modules (XEMs), which are all hot-swappable allowing maintenance and reconfiguration of the network without affecting networking uptime. Ethernet Protection Switched Ring (EPSRing™) allows the SwitchBlade x908 — with a number of x510 switches — to form a protected ring with 50ms failover that is perfect for high performance at the core of the Enterprise network.

Allied Telesis Virtual Chassis Stacking (VCStack™) provides excellent resiliency by allowing the creation of a single “virtual chassis” from multiple physical devices. It allows management of the stack as a single node on the network, greatly simplifying management tasks. Comprehensive low-latency wirespeed QoS provides flow-based traffic management with full classification, prioritization, traffic shaping and min/max bandwidth profiles.

Reference Solution
The diagram above shows the SwitchBlade x908 at the core of the network and x510 Series switches at the access edge providing PoE+ to surveillance cameras on each floor across the campus.

Other Potential Uses for this Architecture

  •     Larger Shopping Malls
  •     Larger Discount Stores
  •     Corporate Campus
  •     Higher Education
  •     Manufacturing Facilities
  •     Hospitals

 

Video: IX5-28GPX High Availability Video Surveillance Switch

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