On Wed, 23 Aug 2000, Croyle, James wrote:
> I don't get stuck very often in a Cisco book, but this doesn't make sense.
> Page 126 of Cisco LAN Switching states:
>
> "Although each port of a Catalyst behaves like a port on a bridge, there is
> an exception. The Catalyst family has group switch modules where ports on
> the module behave like a shared hub. When devices atach to ports on this
> module, they share bandwidth like a legacy network. Use this module when
> you have high density requirements, and where the devices have low bandwidth
> requirements, yet need connectivity to a VLAN."
>
> Does he mean different VLANs configured on this module share bandwidth? If
> he is saying the same VLAN shares, then that is no different than any other
> switch. Another note, this book is the most unclear of any (I have read
> about 8) Cisco book I have come across yet. Be that as it may, please
> provide any insight, especially if you have the book and can refer to the
> whole section/page.
what he is saying, is the Catalyst has modules, like a 8 port module for
example, which behaves like a hub with an uplink to a single switch
port. It is the exact same thing in fact as having a hub connected to a
single switch port, except the hub is inside the switch. Since
"normal" switches never had this (maybe they pioneered it), they are
saying they are different in that respect.
Now of days this is of course more and more common and people refer to
this as "switching hubs".
It would all be of the same VLAN since its the same port essentially.
>
> TIA,
>
> Jim Croyle
>
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Brian Feeny, CCNA, CCDA [EMAIL PROTECTED]
Network Administrator
ShreveNet Inc. (ASN 11881)
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