[nsp] Cisco 2950 & QoS

[John Pang]

Hi Michael,

Thanks for the insight. I am wondering if the 2950
would be suitable to ratelimit certain types of
"unwanted" (aka DDoS) traffic so that it doesn't
affect the 2621 router?

Thanks,

--- Michael Loftis <mloftis at wgops.com> wrote:
> The 2950 is a switch, not a router.  It has only
> very basic rate limit 
> functions and indeed only gets 1Mbit increments on
> the rates on 100mbit 
> ports, and 10mbit on the gig-e ports.  It is not
> suitable for rate limiting 
> at all.  It is also not suitable for QoS as it
> doesn't really tag packets, 
> just follows existing 802.1p tags.
> 
> --On Tuesday, March 23, 2004 21:29 -0800 John Pang 
> <whoami1234_1234 at yahoo.com> wrote:
> 
> > Hi everyone,
> >
> > I was thinking of implementing some form of simple
> > QoS/rate-limiting on my edge network which
> connects to
> > the outside world and came across the Cisco 2950
> > series switches.
> >
> > Assuming my internet connection comes in the form
> of
> > an Ethernet connection, instead of getting my edge
> > routers (i.e. Cisco 2621) to run QoS, would it be
> > possible to connect as follows:
> >
> >       C2621 -> C2950 -> Internet
> >
> > So that in this way the 2621 will not be bogged
> down
> > doing QoS and ratelimit stuff?
> >
> > If such a config is feasible, would the
> ratelimiting &
> > QoS on the 2950 be able to prevent excessively
> high
> > packet counts and bandwidth from hitting the 2621?
> >
> > Last but not least, will the 2950 appear as
> another
> > hop on the path to the internet or it is
> fundamentally
> > still a switch and is "transparent"?
> >
> > Thanks in advance for any advice or suggestions,
> >
> >
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> 
> --
> Undocumented Features quote of the moment...
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> you
> have to worry about; it's the twenty thousand-odd
> rounds
> labeled `occupant.'"
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> 


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