Re: AF-NM: IBM 8285 Address Registration

"Ron M. Parker" <rmp@alpo.casc.com> Tue, 15 October 1996 12:46 UTC

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Date: Tue, 15 Oct 1996 08:33:04 -0400
From: "Ron M. Parker" <rmp@alpo.casc.com>
Message-Id: <9610151233.AA10137@emily.cascade>
To: comp.dcom.cell-relay@indiana.edu, dklippel@pt1.hirschmann.de
Subject: Re: AF-NM: IBM 8285 Address Registration
Cc: atommib@thumper.bellcore.com, af-nm@atmforum.com
X-Sun-Charset: US-ASCII

Dieter - 

This table is dual-indexed (port and address).  The "103" is the port
identifier.  Since the address, itself,  is variable length (8 or 20 octets), 
a length is required to precede it (20 in this case).  See RFC1212 for 
a description of variable length indices in MIB tables.

	Ron Parker
	Cascade Communications


> From af-bounce@atmforum.com Tue Oct 15 07:59 EDT 1996
> Date: Tue, 15 Oct 1996 04:56:55 -0700 (PDT)
> From: "dklippel" <dklippel@pt1.hirschmann.de>;
> Subject: AF-NM: IBM 8285 Address Registration
> To: comp.dcom.cell-relay@indiana.edu
> Cc: atommib@thumper.bellcore.com, af-nm@atmforum.com
> Mime-Version: 1.0
> Content-Transfer-Encoding: 7BIT
> X-Info: [Un]Subscribe or administrative requests should go to info@atmforum.com
> X-Atm-Gateway: AF-NM AF-NM 
> 
> Hi folks,
> 
> I have a question concerning the Address Registration MIB:
> 
> We use an IBM 8285 ATM Workgroup Switch. When I perform a
> get-next to its atmfAtmAddressTable, following result is printed:
> 
> atmfAddressStatus.103.20.57.153.153.153.153.153.153.0.0.153.153.1.1.2.0.
> 161.10.0.128.0 = 1
> 
> This is the entry for our ATM Workstation, which is connected to this 
> switch. I interprete this entry as following:
> 
> - the last 7 bytes define the ESI and the SEL of the ATM Host
>    ESI: 2.0.161.10.0.128
>    SEL:0
> 
> - the 13 bytes before define the Net Prefix
>   57.153.153.153.153.153.153.0.0.153.153.1.1
> 
> That is right so far. But what mean the first two bytes:  103.20 ??
> Since the first index defines the ATM Port, what means the second ?
> 
> 
> The atmfAddressEntry (UNI 3.1) uses following index:
> 
>      atmfAddressPort               : INTEGER
>      atmfAddressAtmAddress :  AtmAddress --> OCTET STRING(SIZE(8|20))   
> 
> So the above entry should have a maximum index length of 21. 
> (Port and ATM Address) and not 22. 
> 
> Can anyone help me ?
> 
> Thanks and best regards,
> 
> 
> 
> 
> ********************************
> Dieter Klippel
> Richard Hirschmann GmbH & Co.
> Networking Technology - NEH 
> Development High Speed LAN  
> 
> PO Box 1649
> 72606 Nuertingen
> 
> Tel: (49) 7127/14-1627
> Fax: (49) 7127/14-1600 
>