QOS can be implemented in three methods
1) Best Effort
2) INET SERV
3) DIFF SERV
1) Best Effort
--> Best Effort is the default QOS behavior on Cisco Devices.
--> In Best Effort QOS traffic is forwarded by the devices on first come first out basis (FIFO).
--> No Guaranteed traffic delivery
--> Internet works based upon best effort QOS
2) INET SERV
--> Integrated Services also known as Hard QOS or End to End QOS.
--> Provides Guaranteed Delivery of the traffic
--> Not Scalable because every device in the path need to support INET SERV which consumes bandwidth.
--> uses Admission Control for Guaranteed bandwidth.
--> RSVP is the example of INET SERV QOS
3) DIFF SERV
--> Differentiated Services QOS is also known as Soft QOS.
--> Does not provides Guaranteed delivery of the traffic.
--> Scalable works based upon per hop behaviour
1) Best Effort
2) INET SERV
3) DIFF SERV
1) Best Effort
--> Best Effort is the default QOS behavior on Cisco Devices.
--> In Best Effort QOS traffic is forwarded by the devices on first come first out basis (FIFO).
--> No Guaranteed traffic delivery
--> Internet works based upon best effort QOS
2) INET SERV
--> Integrated Services also known as Hard QOS or End to End QOS.
--> Provides Guaranteed Delivery of the traffic
--> Not Scalable because every device in the path need to support INET SERV which consumes bandwidth.
--> uses Admission Control for Guaranteed bandwidth.
--> RSVP is the example of INET SERV QOS
3) DIFF SERV
--> Differentiated Services QOS is also known as Soft QOS.
--> Does not provides Guaranteed delivery of the traffic.
--> Scalable works based upon per hop behaviour
0 comments:
Post a Comment