[j-nsp] DPC and DPCE

[Mustafa Golam -]

DPCs provide multiple physical interfaces and Packet Forwarding Engines on a
single
board that installs in a slot in the Juniper Networks MX-series Ethernet
Services Router.
A DPC receives incoming packets from the network and sends outgoing packets
to the
network. The Packet Forwarding Engines on a DPC are equipped with
purpose-built
application-specific integrated circuits (ASICs) that perform packet
processing and
forwarding. Each Packet Forwarding Engine consists of one I-chip for Layer 3
processing
and one Layer 2 network processor.
To ensure that the MX-series delivers the lowest cost per port without
sacrificing
performance, reliability, scalability, or functionality, each Ethernet
services router has
been purpose-built for optimization to provide both switching and
carrier-class Ethernet
routing functions.
The MX-series Ethernet Services Routers have three models of Dense Port
Concentrators: DPCE-X, DPCE-R, and DPCE-Q.

Ref: www.juniper.net/products/modules/100209.pdf


On Wed, Dec 3, 2008 at 8:16 PM, Natasa Zivkovic Galjak <natasa at datanet.rs>wrote:

> Hi,
>
> As far as I remember DPCE cards has enhanced ASICs for increased
> performance and scalability of Layer 2 features.
>
> Best regards,
> Natasa
>
> ------------------------------------------------------------------------
>
>
>
> Pavel Lunin wrote:
>
>> Hi all,
>>
>> Does anyone know what letter 'E' means in DPC codes? Is there any
>> technical difference between DPCE-R-2XGE-XFP and DPC-R-4XGE-XFP other than
>> just number of ports?
>>
>> --
>> Kind regards,
>> Pavel
>> _______________________________________________
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>>
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>>
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