Content

| 8.1 |  | Quality of Service Requirements |
| 8.1.5 |  | Network availability |

In order to provide QoS, network uptime must be maximized. Low loss, small delays and minimal jitter are meaningless if the network is down. Redundancy, dynamic routing protocols, Hot Standby Routing Protocol (HSRP) and the Spanning-Tree Protocol (STP) are all used to create a highly available network and form the foundation of a network capable of fulfilling QoS requirements.