ISPs?

[Alex H. Ryu]

Cisco ASR1000 uses embedded linux, but also uses ASIC level special chip
to archive line-rate processing, which Juniper and other vendors adapted
long time ago.

Performance will be varied how far you can tune the system for optimal
performance.

Alex


Christian Meutes wrote:
> Hi,
>
> --On Donnerstag, 19. M채rz 2009 12:56 -0400 Robert Blayzor
> <rblayzor.bulk at inoc.net> wrote:
>
>> I'm sure FreeBSD (or any *nix based platform for that matter) can
>> probably smoke most routers control planes when it comes to routing
>> tables and convergence if properly built on the right hardware. Take one
>> quad core processor with 4GB of RAM and you can probably handle 100's if
>> not thousands of peers and a dozen+ full route views.
>
> true, in theory a uptodate x86 CPU is very fast in software stuff and
> should
> handle hundred of peers without any problems. But what is with the
> reality?
> Its not only about hardware, its about the right implementation too.
> We all
> know how "fast" and "bugfree" windows is on highend PCs ;-)
>
>> The big question is PPS forwarding. Where most high performance routers
>> do this with ASIC's, the actual packet forwarding THROUGH the device is
>> in hardware and completely off the CPU.... FreeBSD has to do it in
>> software, so that's where it loses BIG.
>
> Ciscos new software platform, the ASR1000, does everything in
> software. Its
> in theory the perfect edge device, if it would be already bugfree and
> would
> have all the features and hardware support the others have. I believe
> it routes
> linerate 10GE, can has ACLs, QoS and all the sophisticated stuff
> enabled at
> the same time.
>
> Beside pps in which iam very interested its also operation of routers
> without
> downtime in cause of small configuration changes.
>
>
>
>
>
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>