Re: Error in RFC 1213 for Deprecated atTable ??

[Keith McCloghrie <[e-mail]>]

John,

> Okay, bear with me here.
> 
> RFC 1067 says that the instance identifier for an atTable entry is
> atIndex.1.atNetAddress (where atNetAddress is the four component IP
> address).

Right, RFC1067 knows nothing about INDEX clauses.  What 1067 says is 
that the instance sub-identifiers for atTable
are:
       i.1.a.b.c.d

where i is the value of atIndex and a.b.c.d is the value of atNetAddress
 
> To properly represent this, you'd need to be able to say
> 	INDEX	     { atIndex,
> 		       1,
> 		       atNetAddress }

No.  RFC 1212 specifies that when an INDEX clause includes a variable 
with SYNTAX of NetworkAddress, then that variable is represented in 
the instance sub-identifier by n+1 sub-identifiers where, for 
IpAddress, n is 4 and the first sub-identifier is 1.  So, the
instance sub-identifiers for INDEX { atNetAddress } would be 

       1.a.b.c.d
 
Thus, the instance sub-identifiers for INDEX { atIfIndex, atNetAddress }, 
as used for atTable in RFC 1213, 
are:

       i.1.a.b.c.d
 
Voila.

Keith.