SNMP ifAdminStatus and ifOperStatus switched?

fred.goetz · ‎01-19-2005

Hi Everybody,

i posted the same Problem in Sept 04 without any solution. So once again:

on two Cisco1760 with an Serial Leased Line and a ISDN Backup (bri1/0 configured as backup interface for Serial0/0) i got the following result for a mibbrowse:

ifIndex ifDescr ifAdminStatus ifOperStatus

11 BRI1/0-Physical 5 down

12 BRI1/0-Signaling 5 down

From the IF-MIB definitions there is no state 5 for ifAdminStatus and all other Routers with the like Backup Conf show the right behaviour: ifAdminStatus as up and ifOperStatus as dormant (5).

Only the Cisco1760 shows the mistake.(ifAdminStatus=5)

Is this a bug??

Here are the IOS Versions:

a.

Cisco Internetwork Operating System Software ..IOS (tm) C1700 Software (C1700-Y-M), Version 12.3(9c), RELEASE SOFTWARE (fc2)..Copyright (c) 1986-2004 by cisco Systems, Inc...Compiled Wed 01-Dec-04 01:13 by kellythw

b.

Cisco Internetwork Operating System Software ..IOS (tm) C1700 Software (C1700-IPBASE-M), Version 12.3(6a), RELEASE SOFTWARE (fc4)..Copyright (c) 1986-2004 by cisco Systems, Inc...Compiled Fri 02-Apr-04 20:22 by kellythw

smahbub · ‎01-27-2005

The if AdminStatus will be always up unless you type a 'shutdown' under the BRI0 interface configuration mode. No matter there is cable plugged or not.The ifOperStatus will be either up, dormant or down. Dormant and down when there is no traffic on the interface. Up when there is traffic going across the interface.