Defending against lameness since 2008

The IntServ, also known as ‘Hard QoS’, model was introduced to guarantee predictable network behavior for applications that require consistent, dedicated bandwidth for acceptable quality. Because IntServ reserves the bandwidth for the applications, no other traffic can use that bandwidth. IntServ guarantees bandwidth, delay and packet-loss rates from end-to-end. This guarantee ensures predictable service levels for mission-critical applications. IntServ uses RSVP (Resource Reservation Protocol) to reserve the required network resources.

Some advantages of IntServ are: Multiple Service Levels, Intelligent queueing. dynamic port signaling and end-to-end guarantees. Some disadvantages of IntServ are continuous signaling and it is not scalable for large networks.

Tags: 642-642, ccip, ccvp, Cisco, hard qos, intserv, QoS, rsvp

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