DS3 and DS1 RFCs

[Tracy Cox <[e-mail]>]

Colm Bergin,

Ted Brunner from Bellcore cc'ed me on his mail
message to you about using the DS1/DS3 MIB
to manage a multiplexor or a digital cross-connect.
You were concerned that the MIBs were used only
to manage a CSU.

I am of the opinion that the DS1 MIB can be used
to manage a DS1 interface -- on any device.
To further manage a mux -- you may need other objects,
but the DS1 MIB is the minimum subset of things you need
to manage a device that has a DS1 interface.

I am trying to change the mibs to suit that need.


I would suggest you sign up to the
[e-mail] mailing list to hear
the discussions on the DS1 and DS3 mibs.

To do that send your email info to
[e-mail]

We at Bellcore are doing exactly what I described above
for our Switching System that supports SMDS.

For example, our switch has DS3 and DS1 interfaces.
On top of that interface runs the SMDS Interface Protocol
or SIP.  We support in our switch the DS1 and DS3 MIBs --
depending on the interface; and the SIP MIB --  see
draft-ietf-snmp-smdssipmib-06.txt (or 07) in internet-drafts.


So therefore, I see no reason that you could not use the
DS1 MIB to manage a portion of your mux or digital cross connect
system.

Included is your original mail message and Ted's response for
others to follow this arguement.

Thanks.

Tracy

===========================================
Tracy A. Cox
Bellcore
NVC 1C-354
331 Newman Springs Rd.
Red Bank, NJ  07701
[e-mail] email
[phone] vmail
[phone] fax
===========================================
Subject: Help on T1 MIB
Date: Thu, 06 Feb 92 14:22:59 -0500
From: [e-mail]



Colm Bergin-
	"The T1 mib" is rfc1232, and so when you receive it you
will have what we've got, so far.  It concentrates on error
statistics associated with the transmission facility 
(eg. errored seconds, severly errored seconds, errored framing seconds)
kept on a 15minute time base.  There are also alarm states
(red and yellow) and some minimum amount of descriptive stuff
about the line (eg whether is ANSI-ESF or G704-CRC or ...)
	Now, as you have observed for the DS3 mib, this is kept by CSUs,
and you want to manage a multiplexor and a digital cross connect.
For that, this mib will not help you. 
	There is a mailing list for folks interested
in T1 and DS3 management ([e-mail]) 
The request to join is probably ([e-mail])
Try there.
	The silver lining here is that you may be interested
in talking with other vendors to develop a mib for your line of
equipment.  This list is a good place to start looking for others.
Since I haven't really done such a thing myself,
I'm not qualified to suggest a game plan.  But if you want to 
pursue this, I'd be interested in talking, because I have an
interest in cross-connects in a different context - ATM switches.


Ted Brunner			Bellcore 
[e-mail]	MRE 2P-252
201/829-4678			445 South St.
				Morristown NJ 07960-1910


------enclosed message---------

Dave,

I just recently received the reference list you posted to the SNMP mailing
list.  I was hoping to find mention of work on a MIB relating to the
management of T-1 multiplexors and digital cross connects, but in my
ignorance, I couldn't identify such a document.  I checked the DS-3
interface description, but it relates only to CSU's (I'm waiting to
receive RFC-1232 on DS-1 interfaces).

Do you know if the IETF is addressing management of such WAN devices?

Thanks for any information,

Colm Bergin
Software Engineer
Integrated Telecom Corp.
Internet: [e-mail]


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