SIP Load Balancing

Session Initiation Protocol (SIP) is used to establish, modify, and terminate multimedia IP sessions including VoIP telephony, video, presence, streaming media, and instant messaging. SIP load balancing is used to balance the amount of SIP related service network traffic among supporting servers to achieve performance scalability and high availability of these services. When providing SIP services it is important that SIP value-added application vendors, Telecom Equipment Manufacturers (TEMs) and System Integrators (SIs) ensure performance by avoiding problems with scalability, overloads, and crashes. In order to achieve this, server platforms must be managed correctly so that all servers are utilized efficiently with the ability to handle SIP load balancing. When a network does not support, or have, SIP optimization capabilities such as a dedicated SIP load balancer, complications can arise that will cause downtime from the server, lost production time, and the exposure of data traffic to security violations.

With a SIP load balancer, all servers can be utilized efficiently. Inbound/outbound traffic is handled in a timely and successful manner, avoiding hold ups, traps and other overwhelming processes that may cause bottlenecks or crashes. Not only should a network have an efficient load balancer, but it should also utilize an optimized solution that is reliable and can prevent against the security issues that arise with SIP server platforms. When a server platform crashes or comes into a bottleneck, data traffic can be exposed to harmful security violations such as Denial of service (DoS) or Distributed Denial of Service (DDoS) attacks. Private information can then be accessed leaving users vulnerable and exposed. Radware's SIP Director combines message load balancing, SIP optimization and security, enabling higher system efficiency and scalability.

SIP Load Balancer

SIP load balancing must provide high scalability, availability, and reliability to the SIP proxy. Under high traffic volumes, a SIP load balancer must be able to distribute and balance the traffic that is coming in so that service availability is granted. Not only should SIP load balancing apply to the current amount of traffic, but should also grow to accommodate the increasing amount of traffic and callers companies receive. Employing unlimited call handling, SIP load balancing, traffic acceleration, and performance optimization will ensure the success of your network and prevent lost time, down time, and excessive costs.

An optimized server platform allows companies to attain the utmost efficiency by handling challenges such as bottlenecks and overloads in real time, all while maintaining the connection to the server. Learn about Radware's SIP load balancing solution that can provide clients with the SIP load balancer needed to stay connected and maintain companywide efficiency. Achieve scalability through unlimited call capacity, traffic acceleration and performances optimization; even gain high availability through local and global clustering as well as unmatched flexibility.

Radware's SIP Load Balancing Solution

Radware's SIP Director is a comprehensive SIP Application Delivery Controller (ADC) that guarantees the SIP service delivery requirements of carriers and operators deploying today's SIP services. Radware's SIP Director provides high availability through local and global clustering as well as advanced health checks on SIP devices, routing SIP clients away from unstable or unreliable devices and providing increased reliability to existing SIP solutions for optimal call completion. It also provides scalability through an unlimited call handling capacity; load balancing, traffic acceleration and performance optimization and functions as a SIP proxy. With SIP Director, carriers, network equipment providers and system integrators can optimize SIP delivery across application/feature servers, voice mail service, IVRs, conference applications, media servers, call center applications and 911 services among others. SIP Director supports SIP-based services for pre-IMS frameworks including soft switches and SBCs, as well as IMS frameworks including SIP services across IMS service, control and transport planes.

By using SIP Director carriers, operators, vendors, SIs and TEMs benefit from service continuity, enhanced user experience, reduced OPEX/CAPEX as well as shorter development and deployment cycles reducing time-to-market.

For questions or more information about our SIP load balancing solutions, please contact us and a knowledgeable Radware representative will answer promptly.