Vyatta as a BRAS

Tony Li tony.li at tony.li
Tue Jul 20 06:50:39 CDT 2010

If there is sufficient CPU power (and I/O to the CPU) as compared to the bandwidth, then this is doable.


On Jul 19, 2010, at 11:40 PM, Akyol, Bora A wrote:

> Except that the goal you set below is very very hard to do on a software router unless its CPU has packet classification properties implemented in HW.
> In some systems, just the act of receiving the packet in the ISR and classifying it into a bucket  is enough to overwhelm the system without proper hardware assist. 
> Bora
> -----Original Message-----
> From: Mark Smith [mailto:nanog at 85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org] 
> Sent: Monday, July 19, 2010 2:39 AM
> To: Tim Durack
> Cc: NANOG list
> Subject: Re: Vyatta as a BRAS
> And that's the crux of the issue. Can the box survive if line rate
> maximum PPS is being aimed at it, either for forwarding or at the
> control plane? If the answer is yes, then whether it is a "software
> router" or "hardware router" is academic.

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