17 if monitor – Cirrus Logic CobraNet User Manual
Page 117

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)