[127909] in North American Network Operators' Group
Re: Vyatta as a BRAS
daemon@ATHENA.MIT.EDU (Tony Li)
Tue Jul 20 07:51:20 2010
From: Tony Li <tony.li@tony.li>
In-Reply-To: <BECAED262016464A9C59788DA6AC9690063002A3B6@EMAIL05.pnl.gov>
Date: Tue, 20 Jul 2010 13:50:39 +0200
To: "Akyol, Bora A" <bora@pnl.gov>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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.
>=20
> 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.=20
>=20
> Bora
>=20
>=20
> -----Original Message-----
> From: Mark Smith =
[mailto:nanog@85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org]=20
> 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.
>=20
