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FAQ: MPLS on EX Series Switches

By Erdem posted 02-05-2016 12:23


MPLS provides a mechanism to engineer network traffic patterns that are independent of routing tables. MPLS assigns short labels to network packets that describe how to forward them through the network. MPLS is independent of any routing protocol and can be used for unicast packets.


MPLS enables service providers and data centers to utilize far more bandwidth, resulting in a considerable cost savings, by engineering network traffic patterns. MPLS can be used to create state-of-the-art any-to-any networks. With the use of class of service (CoS), MPLS can efficiently accommodate multiple applications such as VoIP, video conferencing, or data traffic over a single link.


To ramp up on MPLS for EX Series switches, click Junos OS MPLS for EX Series.


This article provides answers to the most common questions about MPLS support on EX Series switches using Junos OS.


  1. What is a label?
  2. What is a label-switched path?
  3. What are the possible applications of MPLS with EX Series switches?
  4. What MPLS features do the EX Series switches support?
  5. Can I implement class of service (CoS) with MPLS?
  6. Can I use firewall filters (or ACLs) with MPLS?
  7. What is penultimate-hop popping?