Fully agree with John. ACL is essentiallt about permission, though in some 
languages (including my mother one) "filter" may be associated with the concept 
of selectively allowing some access...

--
Likely to be brief and not very
elaborate as sent from my mobile
Diego R. Lopez
Telefonica I+D


On 13 Sep 2016, at 02:40, John Strassner 
<[email protected]<mailto:[email protected]>> wrote:

Thanks Bob, completely agree.

Fundamentally, "filter" implies "remove" (at least in English). ACLs are 
permissions. Removing something (or forwarding, or whatever) is simply an 
action dictated by the permission.

regards,
John

On Mon, Sep 12, 2016 at 10:27 AM, Natale, Bob 
<[email protected]<mailto:[email protected]>> wrote:
Hi Linda,

It seems to me that the RFC4949 definition is more general and that 
ietf-netmod-acl-model defines one compatible specific variation. Some of the 
specifics of that definition might not apply in all cases.

In fact, I am somewhat surprised that the latter document did not, evidently, 
reference RFC4949 ... at least for a baseline definition. True, it's a bit 
dated, but I think that mostly affects concepts and constructs introduced since 
its publication ... the widespread use of ACLs predates RFC4949 by a lot.

For reference, the fairly recent CNSSI 4009, Committee on National Security 
Systems (CNSS) Glossary (Apr 6, 2015) also uses a more general definition:
access control list (ACL)

A list of permissions associated with an object. The list specifies who or what 
is allowed to access the object and what operations are allowed to be performed 
on the object.


Avanti,
BobN

From: I2nsf [mailto:[email protected]<mailto:[email protected]>] On 
Behalf Of Linda Dunbar
Sent: Monday, September 12, 2016 1:07 PM
To: John Strassner <[email protected]<mailto:[email protected]>>; Susan Hares 
<[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]>
Subject: [I2nsf] I2NSF Terminology's definition on "ACL" is different from 
ietf-netmod-acl-model

John, et al,

The "ietf-netmod-acl-model" has "ACL" defined as:
An ACL is an ordered set of rules that is used to filter traffic on a
networking device. Each rule is represented by an Access Control
Entry (ACE).

The "draft-ietf-i2nsf-terminology-01" has ACL as:

ACL (Acess Control List):  This is a mechanism that implements
      access control for a system resource by enumerating the system
      entities that are permitted to access the resource and stating,
      either implicitly or explicitly, the access modes granted to each
      entity [RFC4949]. A YANG description is defined in
      [I-D.ietf-netmod-acl-model].



Can we make I2NSF's ACL definition consistent with the ""ietf-netmod-acl-model"?

Thanks,
Linda



--
regards,
John
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