Is it correct to say that packet forwarding engines for MX960 series are DPC, DPCE, MPC, etc? And all those DPC, DPCE, etc cards actually include one or more packet forwarding engines? So in similar fashion CFEB is the packet forwarding engine for M10i and it contains actually one or more FPCs?


1 Answer 1


It is correct to say that each of that card, DPC,DPCe and MPC provides packet forwarding engines. Everyone of this card uses this mechanism to forwarding.

Several types of DPCs are available. Each DPC includes either two or four Packet Forwarding Engines. Each Packet Forwarding Engine enables a throughput of 10 Gbps.

  • I see. However, when someone talks about a PFE of Juniper router, then is it correct to think of PFE as the ASIC's(for example Trio chipset) on FEB(DPC, CFEB, SSB, etc), the FEB itself or the whole PIC+FPC+FEB package?
    – Martin
    Sep 25, 2015 at 16:04
  • 1
    In fact, the PPFC are implemented in ASICs, physically located on the FPCs and the PICs. You can see more info here: juniper.net/techpubs/en_US/release-independent/junos/topics/… Sep 25, 2015 at 17:35

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.