[c-nsp] ASR1006 Routers

Mark Tinka mark.tinka at seacom.mu
Fri Jun 3 22:20:14 EDT 2016

On 4/Jun/16 02:22, Nathan Ward wrote:

> Hi Curtis,
> All packets hit the ESP, they are the backbone of the ASR1000. Just like the RSP in the ASR9000 and the SCB in the J-MX, etc. etc.

Well, technically speaking, the RSP in the ASR9000 and SCB in the
Juniper provide the switching fabric, i.e., an interconnect for the
different line cards to speak to each other.

The equivalent of the ESP on the ASR9000 and MX would be the network
processors fitted on the actual line card itself, i.e., the Trident,
Typhoon, Tomahawk and CPP (Cisco Packet Processor) network processors on
the ASR9000 line cards, and the Trio chipset on the MX line cards.

Unlike the ASR9000 and MX, the ASR1000 does not have a switch fabric,
per se. It performs centralized hardware forwarding, which means all
traffic from all line cards goes through the ESP at all times. This is
akin to the M7i/M10i/MX80 architecture.


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