nanog mailing list archives

Re: Vyatta as a BRAS


From: Tony Li <tony.li () tony li>
Date: Tue, 20 Jul 2010 13:50:39 +0200


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

Tony


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 () 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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