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17 if monitor – Cirrus Logic CobraNet User Manual

Page 117

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CobraNet Programmer’s Reference

Management Interface Variable Reference

DS651PM25

©

Copyright 2006 Cirrus Logic, Inc.

117

6.4.17 IF Monitor

MI interface for monitoring redundant Ethernet connection (Dual Link) feature. These
variables are only available on the CM-1, CM-2, and CS4961xx/CS1810xx-based
hardware.

Name

ifmCurrentIf

Description

Index of the current, active Ethernet connection.
1 - Primary
2 - Secondary
On platforms with only one interface, this value will always be one.

Host Address

0x73000

SNMP Object ID

1.3.6.1.4.1.2680.1.1.9.3.1

Type

Integer

Attributes

Read Only

Implemented Version

2.9.9 (24-bit platforms), 2.10.3 (32-bit platforms)

Name

ifmLastChange

Description

The value of

sysUpTime at the time the ifmCurrentIf was established. If the current state was

entered prior to or concurrent with the last re-initialization of the local network management
subsystem, then this value will be zero. On platforms with only one interface, this value will always
be zero.

Host Address

0x73001

SNMP Object ID

1.3.6.1.4.1.2680.1.1.9.3.2

Type

Time Ticks

Attributes

Read Only

Implemented Version

2.9.9 (24-bit platforms), 2.10.3 (32-bit platforms)

Name

ifmSwitchMode

Description

Controls DualLink behavior. This variable applies only to interfaces which support two Ethernet
ports.
0 - (default) Automatic switchover to secondary on failure of primary.
1 - Always use primary port.
2 - Always use secondary port.
3 - If one port is woking properly and the other has failed, switch to the port that is working properly.

If both are working properly or both have failed, do not change ports. On boot, start with the
primary port. On platforms with only one interface, a value of “3” is ignored.

Host Address

0x73100

SNMP Object ID

1.3.6.1.4.1.2680.1.1.9.3.4

Type

Integer

Attributes

Read/Write

Implemented Version

2.9.9 (24-bit platforms), 2.10.3 (32-bit platforms)