DECnet IV MIB issues...
Don Dewar <don@coral.com> Fri, 16 April 1993 13:30 UTC
Received: from ietf.nri.reston.va.us by IETF.CNRI.Reston.VA.US id aa04828; 16 Apr 93 9:30 EDT
Received: from CNRI.RESTON.VA.US by IETF.CNRI.Reston.VA.US id aa04823; 16 Apr 93 9:30 EDT
Received: from [16.1.0.23] by CNRI.Reston.VA.US id aa11884; 16 Apr 93 9:30 EDT
Received: by inet-gw-2.pa.dec.com; id AA07536; Fri, 16 Apr 93 06:28:24 -0700
Received: by nsl.pa.dec.com; id AA29922; Fri, 16 Apr 93 04:33:55 -0700
Received: by nsl.pa.dec.com; id AA29918; Fri, 16 Apr 93 04:33:54 -0700
Received: by pobox1.pa.dec.com; id AA02773; Fri, 16 Apr 93 04:33:53 -0700
Received: by inet-gw-1.pa.dec.com; id AA24684; Fri, 16 Apr 93 04:33:50 -0700
Received: from atlantis.coral.com by coral.com (4.1/SMI-4.1) id AA12405; Fri, 16 Apr 93 07:37:10 EDT
Received: by atlantis.coral.com (4.1/SMI-4.1) id AA08682; Fri, 16 Apr 93 07:30:54 EDT
Date: Fri, 16 Apr 1993 07:30:54 -0400
Sender: ietf-archive-request@IETF.CNRI.Reston.VA.US
From: Don Dewar <don@coral.com>
Message-Id: <9304161130.AA08682@atlantis.coral.com>
To: phiv-mib@pa.dec.com
Subject: DECnet IV MIB issues...
I see that the DECnet Phase IV MIB working group is starting up the effort to make the MIB a DRAFT. Before that happens I would like answer to the following four questions. Some time ago I asked what the value of phivAdjCircuitEtherServPhysAddr should be for those stations that do not include their actual hardware addresses in the hello messages. The issue is that since the node address used to identify a DECnet IV station is derived that node address is not the "physical address" of the device. In fact, for those devices that operate in promiscuous mode and pick off their DECnet node address in software, their network interface is still probably programmed with their MAC address. I saw two possible answers for this question; either use the DECnet node address (ie. AA 00 04 xx xx xx) or just leave it all zeros (ie. 00 00 00 00 00 00). The problem with setting it to the DECnet address is that some nodes would show up with DECnet addresses while other would show up with the "real" mac addresses. I think this might be confusing. In addition, it is redundant information, since the adjacency table entry already has the "phivAddr" of the node in it. I have received one response that believes that the DECnet node address should be used. I believe it should be left to zeros. Jon Sapiera et. al. did not have an answer for this question and asked that I solicit suggestions from the net. Please let me know what you think. I am confused between the use of phivLineState vs. phivCircuitCommonState. They both claim to represent the network managment operational state of the their respective entries, yet, one is read-only, while the other is read-write. And they are opposite of what I would think. phivLineState is read-only and yet I would think you would want a user to be able to disable a line for a protocol since that represents the physical entity they have control of. phivCircuitCommonState is read-write, but it represents a more logical entity that I would expect the user to not have control of. The descriptions of these items in the MIB is not very Why do not any of the standard protocol MIBs define any optional filter groups? By not doing so, every vendor that supplies protocol filters must define their own MIB. Can the DECnet IV MIB define some rudimentary filters. I saved this question for last because it is the most controversial, but I think it is important. I once proposed implementing a DECnet phase IV router that could be multpile level 2 routers in one device, something I am told Cisco has implemented. We abandoned the idea because it is explicitly called out as taboo somewhere in the DECnet specs and because a consulting firm thought it was not really useful. However, we might still do that, but the DECnet IV MIB as it stands today would not support such a beast very well. Would it be useful for the MIB to support this? Or am I about to get flamed?!?!? Coral @@@@@*@** @@*@@**@@ Don Dewar *@@**@@@@ Coral Network Corporation, Westboro, MA @***@@@@@ Internet: don@coral.com @@**@@@@@ Phone: (508) 366-3600 ********* Fax: (508) 870-1777 Networks
- DECnet IV MIB issues... Don Dewar
- DECnet IV MIB issues... John A. Shriver
- Re: DECnet IV MIB issues... Bob Stewart
- DECnet IV MIB issues... Jon Saperia
- DECnet IV MIB issues... Jon Saperia