Using EMS HA Monitors

64 Chapter 4
Monitoring Network Interfaces
Network Monitor Reference
Network Monitor Reference
The network monitor provides status on the LAN interfaces in a given node. It
monitors all interfaces visible when you run the lanscan command on a system.
Figure 4-1 Network Monitor Resource Class Hierarchy
The MIB variable ifOperStatus, which is part of MIB-2, provides the LAN
interface status to the monitor. The MIB value of TESTING is reported by the
monitor as DOWN.
To verify the operational status of the LAN interface, use the lanscan (1M) or
lanadmin(1M) commands.
Table 4-1 Interpreting LAN Interface Status
EMS HA Monitors depend on TCP/IP (or UDP) to send events to targets such as HP
OpenView IT/Operations or MC/ServiceGuard; see “Which Protocols Can I Use to
Send Events” in Chapter 1. If all LAN interfaces on a subnet fail, notifications may
not be received by a remote target.
/net
/lan
/status
/LANname
/interfaces
Resource Name /net/interfaces/lan/status/LANname
Condition Value Interpretation
UP 1 The LAN interface is sending and receiving packets.
DOWN 2 The LAN interface is not passing operational packets.