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Conference noted::atm

Title:	atm

Moderator:	NPSS::WATERS

Created:	Mon Oct 05 1992
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	970
Total number of notes:	3630

855.0. "Token-Ring support and ILMI MIB support?" by OSLLAV::BJORN (Bj�rn Olav Haugom) Fri Mar 07 1997 08:26

Do we intend to support LAN Emulation Client support for Token-Ring in 
our ATM adapters?

I can not see from the ATMworks 351 Fact sheet that we do have support for 
this. A Windows-NT server connected to a central ATM switch should be able
to communicate with both Ethernet stations and Token-Ring stations. The idea
behind LAN Emulation is to provide "LAN Emulation" not restricted to Ethernet 
only, so it is a big drawback with our adapters. All competitors in my case
do support both technologies.

Another question;

Do we support redundant LECS? 

In my case, they want to be able to adress an alternative LECS, if the primary
site goes down. They want to use ILMI MIB to communicate which LECS is 
configured for an ELAN, by sending the ATM address of the LECS in the ILMI MIB
to the LEC. ANyone to comment on this?

The switch is an IBM switch, and they are approaching IBM, Madge and Digital 
to support this.

Bj�rn Olav Haugom

NPBU Norway.

T.R	Title	User	Personal Name	Date	Lines
855.1	token ring, no plans yet	WASNT::"[email protected]"	Born to be Mild	`Fri Mar 07 1997 15:56`	9
	>Do we intend to support LAN Emulation Client support for Token-Ring in >our ATM adapters? For VMS, digital unix and Novell, we haven't made this call yet. That means I can guarentee we won't have it within 3 months. However, we need to understand how many customers need this. Please send you inputs and requirements to Ranjeet Sudan.
855.2		NPSS::NEWTON	Thomas Newton	`Fri Mar 07 1997 19:54`	17
	> Another question; > > Do we support redundant LECS? > > In my case, they want to be able to adress an alternative LECS, if the > primary site goes down. They want to use ILMI MIB to communicate which > LECS is configured for an ELAN, by sending the ATM address of the LECS > in the ILMI MIB to the LEC. ANyone to comment on this? The ILMI MIB has no concept of "which LECS is configured for an ELAN". If you are referring to the Service Registry MIB, we do not support it today, but will be supporting it in Version 2.5. If you meant to say "redundant LES" ... we don't do that now, but I've heard that we are going to add some sort of proprietary redundancy. I am not sure what this means in terms of the LECS features or LECS MIB.
855.3		NPSS::NEWTON	Thomas Newton	`Fri Mar 07 1997 19:57`	3
	Just to make things clear ... my answer in 855.2 concerns our switches (GIGAswitch/ATM, ATMswitch900) rather than the adapter.
855.4	what about the adapter support of redundant LES?	OSLLAV::BJORN	Bj�rn Olav Haugom	`Mon Mar 10 1997 02:42`	9
	A consultant told me that the IBM switch uses the ILMI MIB to tell the LEC where to find a LECS, and he said that it should be possible to only use the LANE name, to get the information about the alternative LECS and LES. I guess IBM uses an external LES/LECS for their switches, right? What about the support of Token-Ring for Windows-NT on Intel? Bj�rn Olav
855.5	token ring	WASNT::"[email protected]"	Born to be Mild	`Mon Mar 10 1997 09:07`	4
	No plans for token ring support in the short term, so even if we decicde to do it, it wouldn't ship for a couple of months. doug
855.6		NPSS::NEWTON	Thomas Newton	`Mon Mar 10 1997 18:04`	9
	There is nothing in the ILMI MIB to tell a LEC about alternative addresses for LESes. A LEC always gets the LES address through manual configuration or through the LECS. LAN name is one of the things a LECS can consider in answering a configuration request. I suppose you could set up different LECSes so that they deliberately tell the LEC to use different LES addresses -- assuming you had a reundant LES. Without a redundant LES, this would just fragment your ELAN.