HP HSR Routers

Colton Conor colton.conor at gmail.com
Mon Mar 14 12:36:44 UTC 2016

I don't see TCAM listed either, but as large as HP is I assume they can
afford and use TCAM in their larger routers.

On Sat, Mar 12, 2016 at 1:30 PM, William Herrin <bill at herrin.us> wrote:

> On Sat, Mar 12, 2016 at 1:04 PM, Colton Conor <colton.conor at gmail.com>
> wrote:
> > I would suggest looking at the HP routing line, in North America for some
> > reason people over look them (HP's ability to get the message out is not
> > stellar). The HSR 6602-XG will push 15 Mpps with routing table sizes of
> > 4mil (ipv4) and 2mil (ipv6) there is no additional licensing for any
> > feature you want to use. With respect to implementation I have always
> felt
> > if you understand the protocol who gives a damn about the syntax... The
> > 4060 will handle 36 Mpps with table sizes of 1mil (ipv4) and 1mil (ipv6).
> > Either solution will be cost effective.
> Hi Colton,
> My bet is that there's no TCAM. That or they're being cagey about
> their hardware architecture since I can't find a single document about
> the router that even mentions TCAM. Instead I'd bet they're doing
> software routing (radix tree) spread over "32 hardware threads" and as
> long as the bulk of your destinations are in small enough parts of the
> tree to fit cleanly in to the processor caches you'll get "up to 15
> Mpps".
> http://h20195.www2.hp.com/v2/GetDocument.aspx?docname=c04111430&doctype=quickspecs&doclang=EN_US&searchquery=&cc=us&lc=en
> If I'm right (I'm making guesses after all) then you should compare
> HP's offering with software-based routers from other vendors rather
> than comparing against routers which have a hardware fast path.
> Regards,
> Bill Herrin
> --
> William Herrin ................ herrin at dirtside.com  bill at herrin.us
> Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>

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