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Question Can I implement class of service (CoS) with MPLS? Answer Yes. You can use class of service (CoS) within MPLS networks to prioritize certain types of traffic during periods of congestion. Juniper Networks EX Series Ethernet Switches support Differentiated Service Code Point (DSCP)...
When a network experiences congestion and delay, some packets must be dropped. The Juniper Networks Junos operating system (Junos OS) class of service (CoS) enables you to divide traffic into classes and offer various levels of throughput and packet loss when congestion occurs. Class of...
Question What is the default mapping of code points to Junos CoS forwarding classes? Answer The simplest way to classify a packet is to use behavior aggregate (BA) classification. The DSCP, DSCP IPv6, or IP precedence bits of the IP header convey the behavior aggregate class information....
Question What is the default scheduler policy for Junos CoS on routing devices? Answer If you do nothing to configure or assign classifiers on Juniper routing devices, Junos OS automatically assigns an implicit default IP precedence classifier to all logical interfaces that maps IPv4...
Question How do I apply CoS to my existing network? Answer Please see the following Day One Guide: http://www.juniper.net/us/en/training/jnbooks/day-one/fundamentals-series/deploying-basic-qos/ #COS #FAQ #ClassofService
Question Where can I learn about hierarchical class of service? Answer Hierarchical class of service (HCoS) is the ability to provide CoS functionality as a more granular level (for example, per subscriber rather than per port) by applying traffic schedulers and shapers to a hierarchy of ...
Question What are the default Juniper CoS forwarding classes? Answer CoS packet classification assigns an incoming packet to a forwarding-class that’s ultimately associated with an output queue. Each packet is associated with one of the following default forwarding classes: Expedited...
Question How do schedulers provide different treatment to the different forwarding classes? Answer You use schedulers to define the class-of-service (CoS) properties of forwarding classes and output queues. You configure CoS properties in a scheduler, then map the scheduler to a forwarding...