SNMP Walk Issue from LMS

[Deben Bhattarai]

Hello Experts,

I tried SNMP walk from LMS for below OIDS  but getting the error as attached..

MIB Name :- c2900PortDuplexState

OID's : 1.3.6.1.4.1.9.9.87.1.4.1.1.31
1.3.6.1.4.1.9.9.87.1.4.1.1.32

But while i do with OID 1.3.6.1.4.1.9.5.1.4.1.1.10 its showing the results.

My requirement is the pull the current negotiated Duplex status of interfaces, but with the OID 1.3.6.1.4.1.9.5.1.4.1.1.10 its only showing the configured values [ Auto , full or Half] not the negotiated duplex status if the port is in auto state. Please suggest.

Regards

Deben

[Rolf Fischer · Accepted solution]

Hi Deben,

here's a small list of OIDs for duplex for the Catalyst platforms I know and use:

1) 2900XL, 3500XL, 2900LRE, etc.: c2900PortDuplexState, c2900PortDuplexStatus

2) 2960, 3550, 3560, 3750, 4000, 6500: CISCO-STACK-MIB::portDuplex

3) 4500, 4900: EtherLike-MIB::dot3StatsDuplexStatus

For some reason I don't have access to the Object Navigator at the moment, so I can't provide the details.

I remember that one or more OIDs only work for active interfaces ("up"), just give it a try.

Hope that helps

Rolf

[Vinod Arya · Accepted solution]

Topping up on Rolf's from cisco Object Navigator:

Object
c2900PortDuplexState


OID
1.3.6.1.4.1.9.9.87.1.4.1.1.31


Type
INTEGER


Permission
read-write


Status
current


Values
1 : fullduplex
2 : halfduplex
3 : autoNegotiate


MIB
CISCO-C2900-MIB ;   -   View Supporting Images 


Description
"Set to fullduplex(1) to operate in full duplex mode, port
will allow simultaneous transmit and receive which can
double its bandwidth.

Set to halfduplex(2) to operate in half duplex mode.

Set to autoNegotiate(3) to allow the switch to negoti-
ate with the other end of the connection.

The status of duplex mode on a port is available with
c2900PortDuplexStatus object."

Object

c2900PortDuplexStatus


OID
1.3.6.1.4.1.9.9.87.1.4.1.1.32


Type
INTEGER


Permission
read-only


Status
current


Values
1 : fullduplex
2 : halfduplex


MIB
CISCO-C2900-MIB ;   -   View Supporting Images 


Description
"The status of duplex mode on this port.

When linkbeat is not present, halfduplex is always
reported.

When linkbeat is present, the result of full duplex
auto-negotiation is reported if c2900PortDuplexState is
set to auto-negotiate, otherwise it reports fullduplex
if c2900PortDuplexState is set to fullduplex or
halfduplex if c2900PortDuplexState is set to
halfduplex."

Object
portDuplex


OID
1.3.6.1.4.1.9.5.1.4.1.1.10


Type
INTEGER


Permission
read-write


Status
current


Values
1 : half
2 : full
3 : disagree
4 : auto


MIB
CISCO-STACK-MIB ;   -   View Supporting Images 


Description
"Indicates whether the port is operating in half-
duplex, full-duplex, disagree or auto negotiation
mode. If the port could not agree with the far end
on port duplex, the port will be in disagree(3)
mode."

Object
dot3StatsDuplexStatus


OID
1.3.6.1.2.1.10.7.2.1.19


Type
INTEGER


Permission
read-only


Status
current


Values
1 : unknown
2 : halfDuplex
3 : fullDuplex


MIB
EtherLike-MIB ;   -   View Supporting Images


Description
"The current mode of operation of the MAC
entity. 'unknown' indicates that the current
duplex mode could not be determined.

Management control of the duplex mode is
accomplished through the MAU MIB. When
an interface does not support autonegotiation,
or when autonegotiation is not enabled, the
duplex mode is controlled using
ifMauDefaultType. When autonegotiation is
supported and enabled, duplex mode is controlled
using ifMauAutoNegAdvertisedBits. In either
case, the currently operating duplex mode is
reflected both in this object and in ifMauType.

Note that this object provides redundant
information with ifMauType. Normally, redundant
objects are discouraged. However, in this
instance, it allows a management application to
determine the duplex status of an interface
without having to know every possible value of
ifMauType. This was felt to be sufficiently
valuable to justify the redundancy."

-Thanks

[Deben Bhattarai]

Thanks Guys.. Its really helped .. Now able to get the duplex as expected.