| Author |
Message |
Bill M.
Guest
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 Posted:
Fri Jan 07, 2005 7:36 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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On Thu, 06 Jan 2005 14:33:59 -0800, "$Bill" <news@SPAMOLAtodbe.com>
wrote:
| Quote: | Rick Merrill wrote:
BTW... While each MAC gets it's own IP, and each IP can be assigned to
only one MAC, it does not follow that each IP must be a separate NIC
because a NIC can have more than one MAC. (A NIC can have more than one
interface, and each interface in use must have it's own MAC.)
Never heard of that!
That's a play on words IMO. You can have an adapter card that has
more than 1 ethernet interface (but it's highly rare in the PC world).
People tend to think of a NIC as being a single interface. So although
the stmt is correct - it's far from the norm. It's pretty much the
same thing as combining 2 or 4 (for example) NICs into a single card -
everything is still pretty much treated as separate devices and you
could logically think of it as 2 or 4 NICs rather than 1 NIC with 2
or 4 interfaces. I played with cards like this years ago on Sun
workstations.
|
I'm playing with cards like this on Sun servers TODAY. :-)
--
Bill |
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$Bill
Guest
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| Posted:
Fri Jan 07, 2005 8:02 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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Bill M. wrote:
| Quote: | On Thu, 06 Jan 2005 14:33:59 -0800, "$Bill" <news@SPAMOLAtodbe.com
wrote:
Rick Merrill wrote:
BTW... While each MAC gets it's own IP, and each IP can be assigned to
only one MAC, it does not follow that each IP must be a separate NIC
because a NIC can have more than one MAC. (A NIC can have more than one
interface, and each interface in use must have it's own MAC.)
Never heard of that!
That's a play on words IMO. You can have an adapter card that has
more than 1 ethernet interface (but it's highly rare in the PC world).
People tend to think of a NIC as being a single interface. So although
the stmt is correct - it's far from the norm. It's pretty much the
same thing as combining 2 or 4 (for example) NICs into a single card -
everything is still pretty much treated as separate devices and you
could logically think of it as 2 or 4 NICs rather than 1 NIC with 2
or 4 interfaces. I played with cards like this years ago on Sun
workstations.
I'm playing with cards like this on Sun servers TODAY. :-)
|
Interesting - I haven't been on a Sun much since '96, so that's almost
a decade ago. Those boards were like $1000 or so back then (maybe
another $1000 or so for a 1GB ext disk drive [with fed discount]) -
wonder what they go for now. ;) |
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Bill M.
Guest
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| Posted:
Sat Jan 08, 2005 6:24 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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On Thu, 06 Jan 2005 22:06:14 -0800, "$Bill" <news@SPAMOLAtodbe.com>
wrote:
| Quote: | Bill M. wrote:
On Thu, 06 Jan 2005 14:33:59 -0800, "$Bill" <news@SPAMOLAtodbe.com
wrote:
Rick Merrill wrote:
BTW... While each MAC gets it's own IP, and each IP can be assigned to
only one MAC, it does not follow that each IP must be a separate NIC
because a NIC can have more than one MAC. (A NIC can have more than one
interface, and each interface in use must have it's own MAC.)
Never heard of that!
That's a play on words IMO. You can have an adapter card that has
more than 1 ethernet interface (but it's highly rare in the PC world).
People tend to think of a NIC as being a single interface. So although
the stmt is correct - it's far from the norm. It's pretty much the
same thing as combining 2 or 4 (for example) NICs into a single card -
everything is still pretty much treated as separate devices and you
could logically think of it as 2 or 4 NICs rather than 1 NIC with 2
or 4 interfaces. I played with cards like this years ago on Sun
workstations.
I'm playing with cards like this on Sun servers TODAY. :-)
Interesting - I haven't been on a Sun much since '96, so that's almost
a decade ago. Those boards were like $1000 or so back then (maybe
another $1000 or so for a 1GB ext disk drive [with fed discount]) -
wonder what they go for now. ;)
|
I'm using servers with the Sun GigaSwift UTP 10/100/1000 PCI-64, Sun
P/N X4444a, which has four RJ-45 ports and a list price of $895*. It's
the upgraded replacement for the old Quad Fast Ethernet (QFE) cards
from a few years ago.
*The company where I work enjoys a pretty nice discount off of list.
--
Bill |
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Guest
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| Posted:
Sun Jan 09, 2005 2:09 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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Rick Merrill <RM@throw.net> wrote:
| Quote: |
Do you have a source for that?
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The DOCSIS specs are online at <http://www.cablemodem.com/specifications/>.
| Quote: | I have heard (but I too am sourceless)
that "some modems" have the ability to recognize up to three MAC
addresses and throttle each.
|
It's possible that some modem manufacturer would implement such a
non-standard enhancement, but it's not very likely. Implementing
standard class-of-service priority between different addresses would
probably be much more useful.
-Larry Jones
Who, ME? Who?! Me?? WHO... Me?! Who, me??? -- Calvin |
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