Re: [Entmib] Entity Management and Dual IP Stack
Juergen Schoenwaelder <j.schoenwaelder@iu-bremen.de> Thu, 27 October 2005 23:13 UTC
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Date: Fri, 28 Oct 2005 00:55:06 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@iu-bremen.de>
To: Eduardo Cardona <e.cardona@CableLabs.com>
Subject: Re: [Entmib] Entity Management and Dual IP Stack
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On Thu, Oct 27, 2005 at 12:01:26PM -0600, Eduardo Cardona wrote: > Thanks for the reply. > > It is one logical entity with two IP management addresses ( one IPv4 > and one IPv6), my question is how to configure entLogicalTDomain and > entLogicalTAddress to support both IPv4 and IPv6 for the same logical > entitiy I agree that this is a valid question to ask and it seems that there is no good answer to this question. My understanding of the SNMP architecture is that an SNMP engine is identified by an SNMP engine ID. Since an SNMP engine can be attached to multiple transport endpoints, there needs to be a 1:N mapping of SNMP engine IDs to the transports the engine is listening on. The SNMPv3 specs may not be particular clear how this 1:N mapping is represented in the core SNMP MIBs (and I believe the SNMP core MIB modules are the place where this information should be represented). The ENTITY-MIB should not try to duplicate this information 1:N mapping and just refer to the appropriate table via the relevant SNMP engine ID. However, the ENTITY-MIB was first published in 1996 (RFC 2037) and at that time the concept of an engine ID did not really exist so it is understandable why the entLogicalEntry looks like it does. To summarize: I see a problem here. Is it worth fixing? Perhaps. How much time will it take to do that in the IETF? I better don't speculate. Perhaps much more important is to record this as a "defect report" (where?) so that people can worry about this once this MIB is opened up for revision. /js -- Juergen Schoenwaelder International University Bremen <http://www.eecs.iu-bremen.de/> P.O. Box 750 561, 28725 Bremen, Germany _______________________________________________ Entmib mailing list Entmib@ietf.org https://www1.ietf.org/mailman/listinfo/entmib
- [Entmib] Entity Management and Dual IP Stack Eduardo Cardona
- RE: [Entmib] Entity Management and Dual IP Stack Sharon Chisholm
- RE: [Entmib] Entity Management and Dual IP Stack Eduardo Cardona
- Re: [Entmib] Entity Management and Dual IP Stack Juergen Schoenwaelder
- Re: [Entmib] Entity Management and Dual IP Stack David T. Perkins