IOS SLB assures continuous, high availability of content and applications with proven techniques for actively managing servers and connections in a distributed environment. By distributing user requests across a cluster of servers, IOS SLB optimizes responsiveness and system capacity, and dramatically reduces the cost of providing Internet, database, and application services for large-, medium-, and small-scale sites.
IOS SLB facilitates scalability, availability, and ease of maintenance:
The addition of new physical (real) servers, and the removal or failure of existing servers, can occur at any time, transparently, without affecting the availability of the virtual server.
IOS SLB's slow start capability allows a new server to increase its load gradually, preventing failures caused by assigning the server too many new connections too quickly.
IOS SLB supports fragmented packets and packets with IP options, buffering your servers from client or network vagaries that are beyond your control.
IOS SLB firewall load balancing enables you to scale access to your Internet site. You can add firewalls without affecting existing connections, enabling your site to grow without impacting customers
