[Ilugc] NTFS to ext3 file transfer how ?
binand at gmail.com
Tue Jan 17 02:49:57 IST 2006
On 17/01/06, Ramkumar R <andyetitmoves at gmail.com> wrote:
> > This was the norm several years ago; most modern switches from vendors
> > like Cisco or Foundry are L3-capable. In fact, with the correct IOS
> > version, something as lowly as a Catalyst 3550 can do full BGP these
> > days.
> I think it's got to do with the definition then. I look at it as - if
> the device is L3 capable, it *is* a router...
Well, your definition :) These are marketed as L3 switches or routing
switches. The fact is that with increased demand for datacenter space,
one really cannot afford to go for different devices for the switching
and routing layers. The modern network is almost always made up of the
paradigm of core and edge switches, with the cores doing L3 routing.
To take an example, I can use just one Cisco 3750 switch to connect up
a cabinet full of servers, seperate them into different VLANs, install
access control policies between the VLANs (basic firewall), route
between the VLANs and the ISP uplink, provide various application
services to my LAN (DHCP, NAT), advertise my own IP block using OSPF
or BGP or whatever - all in 1U space. The 48-port version is more than
ample for a decently sized online business. In the older version, one
would have needed separate router, switch, firewall and a couple of 1U
servers to do all that - about 15% of the cabinet is gone already.
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