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RE: (ASCEND) SNMP on Channelized E1
Currently, dial and nailed connections move around on different wanxx ports which all have different ifIndex values. This is troubling to a management application that depends on relatively static ifIndex values to trend data. The only permanent index is the connection profile itself.
One proposed solution, is to have the nailed channel group appear as a permanent interface. If you look at RFC1406 the 'DS1 Fractional Group' describes this. A complication is when a DS3 is divided up into nailed groups. You could end up with hundreds of interfaces. So the Stack table in RFC1573 is required as well. This relates the child interfaces, the nailed groups, back to the parent, the DS3.
Bear with us as we solve this problem.
Incidentally, the latest versions of the MAX code (5.0ai13+) computes the ifSpeed correctly for a nailed group.
Ken Packert
Network Management Division
Ascend Communications
516 468 4810
www.ascend.com
-----Original Message-----
From: David Ponzone [SMTP:david@isdnet.net]
Sent: Wednesday, June 25, 1997 10:21 AM
To: ascend-users@bungi.com
Cc: support@ascend.com
Subject: (ASCEND) SNMP on Channelized E1
Here is my problem.
I have a Chanelized E1 coming into a Max 4000.
On this E1, I defined 2 groups, group 1 and group 2.
I have a connection profile (nailed) for each group.
As the wan interface assigned to a connection profile is not
fixed, and will change each time the connection goes down and up,
I can not monitor the ifInOctets and ifOutOctets with SNMP.
(BTW, for a 256Kbps line, so a group of 4 64Kbps-channels, here
is the output of 'sh if st' on the Max:
wan58 ppp Up 23 64000 1500 125647 104412
Well, apparently, some problems to get the real bandwidth.
Here is the output of 'sh users':
O 235943603 3:0 9:2 64K PPP x.x.x.x customer_profile
Still some problems to show the bandwidth.
But if I request the variable callStatusDataRate, I get 256000.
Well...
)
I don't really care about the inconsistencies reported by the
terminal server, BUT:
does anyone know a way to get the SNMP variables on a such
interface, cleanly and definitely (I mean, without reconfiguring
my SNMP client each time the interface goes down/up :)) ?
A clean way would be to be able to access groups as if they were interfaces,
as the group number is the only fixed thing.
Or the profile name.
Any help would be greatly appreciated.
Regards.
--
David Ponzone / ISDnet
Pager: +33 (0)6 06 41 82 45 Cell: +33 (0)6 60 61 21 63
Email: david@isdnet.net
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