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c-h u-m | 11 Jan 2004 05:20
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(unknown)

Hello,

I want to ask some questions in the snmpconf wg but I cannot subscribe to the mailing list of this group. So, I
ask this quesion here.

I am studying Policy-based management and trying to mapping SNMP entities to PBM entities. Could somebody
confirm my understanding that SNMP manager corresponds to the PDP (Policy Decision Point) and SNMP agent
corresponds to the PEP (Policy Enforcement Point)? I hope that is right and it is simple to see that but I
cannot find any document which explicitly states that.

Thanks,
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Wijnen, Bert (Bert | 11 Jan 2004 23:56
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RE: SNMP question

If you look at the DIFFSERV MIB (RFC3289), and if you
take into account that that MIB representes the management
objects for Diffservv at a managed device (or SNMP agent
if you like) then indeed you interpretation to consider 
an SNMP manager as PDP and an SNMP agent as PDP (in the
context of these tpyes of MIB modules).

Thanks,
Bert 

> -----Original Message-----
> From: c-h u-m [mailto:chum <at> noos.fr]
> Sent: zondag 11 januari 2004 5:20
> To: ops-nm <at> ops.ietf.org
> Subject: 
> 
> 
> Hello,
> 
> I want to ask some questions in the snmpconf wg but I cannot 
> subscribe to the mailing list of this group. So, I ask this 
> quesion here.
> 
> I am studying Policy-based management and trying to mapping 
> SNMP entities to PBM entities. Could somebody confirm my 
> understanding that SNMP manager corresponds to the PDP 
> (Policy Decision Point) and SNMP agent corresponds to the PEP 
> (Policy Enforcement Point)? I hope that is right and it is 
> simple to see that but I cannot find any document which 
> explicitly states that.
(Continue reading)

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Harrington, David | 12 Jan 2004 00:33
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RE: SNMP question

Hi,

I don't quite agree that the manager is a PDP and the agent a PEP.

If the application makes the decision about which policies should be
distributed, then the application is a PDP. If a device enforces the
policies, then the device is a PEP. 

SNMP can be used to distribute policies from the PDP (manager) to an
SNMP agent (on the PEP), and the MIB is a schema to specify the policy. 

You also need to be careful thinking that all SNMP entities are either a
manager or an agent. IN SNMPv1 that was true; in SNMPv3, that
distinction is much less clear. Each SNMP entity can provide "agent"
types of functionality and can provide "manager" types of fucntionality,
in a variety of combinations.

dbh

> -----Original Message-----
> From: Wijnen, Bert (Bert) [mailto:bwijnen <at> lucent.com] 
> Sent: Sunday, January 11, 2004 5:57 PM
> To: chum <at> noos.fr; ops-nm <at> ops.ietf.org
> Subject: RE: SNMP question
> 
> If you look at the DIFFSERV MIB (RFC3289), and if you
> take into account that that MIB representes the management
> objects for Diffservv at a managed device (or SNMP agent
> if you like) then indeed you interpretation to consider 
> an SNMP manager as PDP and an SNMP agent as PDP (in the
(Continue reading)

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chum | 12 Jan 2004 00:39
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Re: SNMP question

Thank you very much.

Wijnen, Bert (Bert) wrote:

>If you look at the DIFFSERV MIB (RFC3289), and if you
>take into account that that MIB representes the management
>objects for Diffservv at a managed device (or SNMP agent
>if you like) then indeed you interpretation to consider 
>an SNMP manager as PDP 
>

>and an SNMP agent as PDP (in the
>  
>
I guess you wanted to say "as PEP".

>context of these tpyes of MIB modules).
>  
>
Best regards,
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Gmane