Quality of Service (QoS) Networking 303
Figure 9-8
Large OSPF Network
Quality of Service (QoS) Networking
QoS refers to the capability of a network to provide better service to selected network traffic.
Some of the goals of QoS include dedicated bandwidth, controlled latency, and improved loss
characteristics. Cisco IOS QoS technologies provide the capability to service a variety of
networked applications and traffic types. Here are some of the benefits provided by the Cisco
IOS QoS software:
·
Control over resources--Bandwidth consumed over a backbone link by FTP transfers
can be limited.
·
More efficient use of network resources--By using Cisco's network analysis
management and accounting tools (NetFlow), you will know what your network is being
used for and that you are servicing the most important traffic to your business.
·
Tailored services--Control and visibility allow service providers to offer carefully
tailored grades of service differentiation to their customers.
·
Coexistence of mission-critical applications--Cisco's QoS technologies make certain
that the WAN is used efficiently by mission-critical applications.
Frame Relay
Hawaii
OSPF Area 50
IBM compatible
State Capitol
Internet
Frame Relay
Alaska
OSPF Area 49
IBM compatible
State Capitol
Frame Relay
Texas
OSPF Area 2
IBM compatible
State Capitol
Frame Relay
Maryland
OSPF Area 1
IBM compatible
State Capitol
OSPF Area 0
87200333.book Page 303 Wednesday, August 22, 2001 2:53 PM