T.R | Title | User | Personal Name | Date | Lines |
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2557.1 | Never heard of such a beast..... | NETCAD::BATTERSBY | | Wed Jul 26 1995 10:32 | 6 |
| I've never heard of such a proposal. I'd suggest sending some
mail to either Jack Forrest (NAC::FORREST), or maybe Karl Pieper
(DELNI::PIEPER), and ask the same question.
Bob-who-worked-on-the-900EF-design-team
|
2557.2 | | STRWRS::KOCH_P | It never hurts to ask... | Wed Jul 26 1995 12:13 | 3 |
|
Yes, Virginia, there will be a fo DECswitch 900EF. It was said that one
would be done at the Americas NPB Sales & Marketing kickoff meeting.
|
2557.3 | Based on 900TX, probably, on the 900EF..not as likely... | NETCAD::BATTERSBY | | Wed Jul 26 1995 15:15 | 14 |
| <----RE: last couple......
What I *have* heard is that there will be a 6 port fiber optic bridge
based on the PEswitch 900TX hardware as a starting point not the
900EF. IE: the 6 TP ports would be replaced with 6 Ethernet fiber optic
ports, with FDDI out the back as in the PEswitch 900TX. I'm not 100%
sure whether the front FO ports will be FOIRL compatible or not (I'm
presuming they will be). The rest of the architecture I am not aware of
what has been cast in concrete. Thus my comments of this proposed bridge
being based on the 900EF with FDDI out the front (and back) and some other
mix of FO Ethernet (as described above), I don't think is quite on the
mark. However, someone may possibly have proposed the latter version
to test the waters.....who knows.
Bob
|
2557.4 | | STRWRS::KOCH_P | It never hurts to ask... | Wed Jul 26 1995 15:22 | 6 |
|
A PEswitch with fo is essentially worthless to us in the field. If we
could get both a fo PE & 900EF, great. Otherwise, a fo PE won't be very
saleable from what my customers need. So, Bob, if you can feed that
back, please do. Otherwise, I've sent many messages to the palace with
my needs for a fo 900EF.
|
2557.5 | Worthless is all in the eyes of the beholder... :-) | NETCAD::BATTERSBY | | Wed Jul 26 1995 16:50 | 12 |
| If its the limit of 64 network addresses on the Ethernet side
(of the current PEswitch) that bothers you, that would likely be
one of the first things that would be changed to what the EF for
example supports. I haven't personally seen your inputs on
what you'd like to see in a FO 900EF equivalent, so I'm a little
fuzzy as to where you see the holes.
The "palace" is a big place, so I'm not sure which noble-person
you may have sent your inputs to. :-)
Ted, Feel free to elucidate in here as to what you mean by being
"worthless to us in the field".
Bob
|
2557.6 | FO PEswitch with 8k addresses would be sellable... | STRWRS::KOCH_P | It never hurts to ask... | Wed Jul 26 1995 17:12 | 9 |
|
It is the 64 address limit which makes it "worthless". I had heard
rumors that this was changeable, but never have seen any other real
data on that. So, if the PEswitch can be "liberated" to support 8192
addresses, then an adaptation of the PEswitch from UTP to FO is
perfectly acceptable.
If I get a PEswitch with FO & 8192 address, I'd sell 100 tommorrow. So,
get that soldering iron out...
|
2557.7 | Some input from Western Canada | CGOOA::PITULEY | Ain't technology wonderful? | Wed Jul 26 1995 17:14 | 18 |
| I also know that a FO PEswitch would be *next-to* useless. Very few
networks have implemented fiber to the desktop. An FOIRL-compliant EF would
go a long way to ease the pain of installing a DEC switch as the heart
of a mid-sized network. Many companies have installed fiber runs to
their remote concentrators and interfacing the existing EF to that type
of wiring infrastructure is problematic to say the least.
I just asked another NPC here which he would prefer and he said that
it's a "no brainer" that an FO EF would be the choice to make.
Brian Pituley
NPC, Calgary
PS: Yes it is the limited address space of the PE switch's ethernet
side that is the worry. Why would the powers-that-be remove the
possibility of using a FO switch stand-alone by removing the front panel
FDDI connectors????
|
2557.8 | | NETCAD::ANIL | | Wed Jul 26 1995 22:03 | 5 |
| Bob & others - rest assured the F/O work underway is on the
EF not the TX. No announced schedule as far as I know, contact
Mike Soha if you need an estimate.
Anil
|
2557.9 | | HGOM11::TYRONELIN | | Thu Jul 27 1995 07:51 | 10 |
| I think we can use EF or TX both with 900 FP to implement a SIX FIBER
Ethernet. It is useless to add fiber to the front panel. If it is done,
I think it will very expensive.
The more I like is FDDI switch between Fast Ethernet.
How about PE2000 series?
I was heard something about it,it is great. But they have no Fast
Ethernet as plan?!
Tyrone
|
2557.10 | | STRWRS::KOCH_P | It never hurts to ask... | Thu Jul 27 1995 11:27 | 16 |
|
Tyrone,
Yes we need Fast Ethernet before the PE2000 family is available. It
would be nice if we could offer a PEswitch or DECswitch 900EF with one
or two 100Mb Ethernet ports. Customers want 100BaseTX for their servers
or a limited number of stations. I'm not an engineer, but what would it
take to make one of these ports 10/100 to fill the gap until the PE2000
switches become available.
In addition, if we could pair this with a reworked PortSwitch 900TP or
DECrepeater 90TS with Fast Ethernet, we could fill in the blanks with a
100BaseTX solution so we don't lose deals.
We are going to lose deals because of this and FDDI won't be the
answer.
|
2557.11 | FP too much $'s | SWAM1::SACHARSKE_LO | | Thu Jul 27 1995 15:41 | 6 |
| re:2557.9
A 900FP is 6K plus the cost of a 900MS(4K)=10K to provide F/O
connectivity. There's applications where existing stackables
are connected with a fiber riser. Putting in a GIGAswitch to
connecting remote stand alone 900EF's fits well.
|
2557.12 | and routing too! | DPDMAI::daveslap.auo.dec.com::Korns | Like you get on your feet, except with a "K" | Wed Aug 09 1995 02:01 | 23 |
| RE: .9 and .11
...plus, just adding a DEChub 900 and PORTswitch 900FP on the back
of 900EF limits you to 6, count'em 6 ethernets.
8 out of 10 DEChub configurations I've been asked to do in the last
months have been for medium/large fiber ethernet (with maybe some FDDI
in the middle) that fan out to always over 6 remote sites. Usually
8, 12, 15, you name it. The customer always wants to have each remote
site be it's own segment. We simply can't do that!
And I'd like to assure the the IP and multiple protocol routing options
are available like to 900EE/EF. This cannot be a level 2 switch like
the 900TX. 8192 addresses and Routing!
If I had to trade something off, I'd give up the front panel FDDI
ports. That same DEChub that would be the center of a star will
either have FDDI on the backplane only and/or if they have external
FDDI they would likely (not always) get a concentrator anyway. Since
the front panel EF ports aren't MOD PMD, you're forced to a concentrator
anyway in alot of configs. For standalone "fo 900EF"'s, you got the back
panel ports of the DEChub ONE-MX.
|
2557.13 | | HGOM11::TYRONELIN | | Wed Aug 16 1995 07:36 | 17 |
| HI,
If you deserately need the FO EF or EE 900 modules, the DECswitch 400
is a very good choice. Because it has every Ethernet media choice,
such as AUI,BNC,UTP,Fiber, you use flexibility of it. Also it has lots
of ethernet segment,I am sure it can provide 18 Fiber ethernet segment.
I don't know if our FO products can exceed 2 KM, because lots of my
case exceed 2 KM. SO the only thing I can propose is that FDDI.
And our DECswitch 400 don't offer Single-mode Fiber,only FDDI is the
choice.
I also want to claim that I desperately need our 100BaseT
information.Where can I find it?
Tyrone
|
2557.14 | | STRWRS::KOCH_P | It never hurts to ask... | Wed Aug 16 1995 08:29 | 7 |
|
No, if you need a FO DECswitch 900EF, the DECswitch 400 is NOT the
product you want. That is because Digital will NOT be selling the FDDI
uplink for this product at this time.
However, if all you need is a FO DECswitch 900EE, then the DECswitch
400 IS the product of choice.
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