Stupid question, perhaps... 2521 router

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In the process of assembling a collection of hardware for a home lab, I wasn't
paying attention and picked up a 2521 router, with Token Ring as opposed to
Ethernet.  (Actually, so do the two 2612s I have, but I digress.)

Not wanting this machine to go to waste, and not having dealt with Token Ring
before, I'm wondering:  

1) Can the token ring adapter be plugged directly into the router, or is a MAU
required?  
2) Near as I can gather, a TR cable is not wired like a standard ethernet
cable.  Is the pinout the same on both ends of the cable, or is one end
flipped, like a rollover?

Thanks in advance...

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Re: Stupid question, perhaps... 2521 router


Quoted text here. Click to load it
MAU

1) NO, absolutly NO; you need a MAU or TR-switch to form your Token-ring
There is no way of "back-to-back" connecting on TokenRing


Quoted text here. Click to load it

2) NO, the wiring is different from ethernet cabling, sygnaling is even way
more different.
Since you need a MAU, there is only one type of cabling to connect hosts.
There are despite TWO different types of connectors, the old archaic IBM
ones and RJ45
You can (with the correct wiring sheme) use simple RJ45 connectors and CAT-4
cable (or better)
And it is no problem to mix connector types at the ends (you can have a MAU
like this one -> http://www.tavi.co.uk/ps2pages/ohland/8228.gif
and have RJ45 on the other ends)



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Re: Stupid question, perhaps... 2521 router


wrote:

Quoted text here. Click to load it

I figured that was the case between adapters, but wasn't sure if that
applied between adapter and router (although it seems obvious in
hindsight).  So it seems I *did* waste my money in getting this
router.  Ah, well -- my fault entirely.


--
-------------------------------------------------+-------------------
"One World; One Web; One Program."  -- Microsoft |     OS/2 Warp
                                                 | Solid like  Linux
"Ein Volk; Ein Reich; Ein Führer."  -- Hitler    | Easy like Windows
-------------------------------------------------+-------------------

         Use your bandwidth.  If you don't, it'll go stale.

        If Bill Gates had a dime for every time a Windows box
                    crashed... oh, wait.  He does.

      I Am Not A Number... Um...except for my TCP/IP address.

         If you can read this .sig, you're too damn close.

                   Save a cow.  Eat a vegetarian!

Remember, EVIL spelled backwards is LIVE -- and we all want to do that!

Dark Days in Human History:  Hiroshima'45   Chernobyl'86  Windows'95

 Proud member of the Signature is Longer Than The Post Association

--------------------------------------------------------------------


Re: Stupid question, perhaps... 2521 router


2521 isn't a waste, just use the 10 serial interfaces as your frame switch.
You can use the other token ring routers too, you just can't connect them to
Ethernet. Add loopback interfaces as necessary.


Marc Russell
Network Learning, Inc.
Michigan
Ph# 248-620-9603
www.ccbootcamp.com (Cisco Training)





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Re: Stupid question, perhaps... 2521 router


wrote:

Quoted text here. Click to load it

*Ten* serial interfaces?

Quoted text here. Click to load it

Actually, the 2612s do have one ethernet interface each.  For those, at least,
I did some research.  :-)


--
------------------------------------------------+------------------
"One World, One Web, One Program." -- Microsoft |     OS/2 Warp
                                                | Solid  like Linux
"Ein Volk, Ein Reich, Ein Fuehrer." -- Hitler   | Easy like Windows
------------------------------------------------+-------------------

       "...but is what we're doing evil?"

       "Of course not!  Listen, Zip -- EVIL spelled backwards
        is LIVE -- and we all want to do that!"

                 Hi!  I'm the Spawn of Satan (tm)!
         Ask me about franchise opportunities in your area!

                   All your base are belong to us.

                   Save a cow.  Eat a vegetarian!

Dark days in human history:   Hiroshima'45  Chernobyl'86  Windows'95

 Proud Member of the Signature Is Longer Than The Post Association

--------------------------------------------------------------------


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