Re: IDPR MIB
Kenneth Carlberg <carlberg@cseic.saic.com> Tue, 05 January 1993 22:09 UTC
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Date: Tue, 05 Jan 1993 17:00:12 -0500
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From: Kenneth Carlberg <carlberg@cseic.saic.com>
Message-Id: <9301052200.AA06781@cseic.saic.com>
To: dlee@erg.sri.com
Subject: Re: IDPR MIB
Cc: idpr-wg@bbn.com
> A point can be made that all status objects have only local > implementation significance i take it you mean local to the domain, as opposed to a VG or a PG. > However, having a status object allows the network manager to view, > modify, or delete a policy without using a separate out-of-SNMP-band > channel. This seems to be a nice feature to me. i agree. > > I still have fundamental problems with the idea of modifying > > configuration between restarts without changing the config file, unless > > we change the implementation to also dump a config file back out when a > > change is made. > > If we permit the network manager to only change the state from active > to inactive and do not allow dynamic instantiation of new policies, > then trying to keep consistent configuration databases is probably > less of an issue. Personally, I would extend the capability to *modifying* a policy. An example that runs through my head is a stub domain that is connected to two providers (transit domains) - one VG per provider: transit-1 Transit-2 \ / VG-1 VG-2 \ / \_____stub____/ In my example, I have a set of policies that pertain to each VG (ie. each entry/exit point of my stub domain). These sets of policies would not change under normal circumstances (whatever they may be). But if per chance, one provider is (temporarily) having serious problems and I can't send traffic through it, then it would seem like a nice idea to alter the VG portion, for example, of a policy (or the on/off that you talk about) on the fly as opposed to making a definitive change in the policy files. In other words, I would like to view the policy files as a static entity, and change things on the fly as the need arises. In this manner, I don't have to remember what my original policies are when things go to normal because I will never have changed my original set of policies. my $0.02 -ken
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