Re: RE: 3750 as edge routing

We are using 3750 M's for our CPE's ... it works simply great.

-Raman

On Wed, Jun 3, 2009 at 4:46 AM, <paul.cosgrove_at_gmail.com> wrote:

> Routers support multiple interface types, and traditionally that often
> required
> their use at the network edge. Provider links were also much slower than
> those
> within campuses.
>
> Routers were designed to cater for the needs at the edge, switches within
> the
> campus. Routers are more suitable for cases where there are different
> interface types required (modular, supporting not only ethernet); speed
> mismatches (larger buffers); BGP (more memory can handle more NLRI, more
> advanced BGP features e.g. IPv6 address family); and lower port densities.
> Router performance was also lower, partly because they were expected to
> apply
> complex security, encapsulation, translation and other advanced features.
>
> Switches were largely packet pushers, but have grown layer 3 features to
> add to
> their high port densities. This evolution has required their capabilities
> to
> be more closely aligned to those of routers, but differences still exist
> in
> the same areas. Switches have less memory, cut down feature sets, and
> support
> only ethernet, but this simplicity allows them to push packet faster.
> Routers
> often still cannot achieve line rate (at the lower end of the cost scale at
> least).
>
> The traditional drivers apply less and less these days, and hybrid modular
> devices are becoming common at the edge,as well as the core of networks. We
> (HEAnet) provide 1G or 10G Ethernet links to customers for instance - often
> the
> same as the bandwidth within the customer networks.
>
> Paul.
>
>
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Received on Wed Jun 03 2009 - 15:28:51 ART