Installation guide

ISDN agent 32-16
Chapter 32: SNMP Agents
Wave Global Administrator Guide
The following information is optional:
• Information for managing Terminal Endpoints (TE), for example, the link layer
connection to the switch
Since this is required only if there are non-ISDN endpoints defined for a given D channel,
Wave does not implement this.
• Information for managing a list of directory numbers for each signaling channel
This is not currently implemented by the agent.
Each interface in the system has a unique interface index. In a typical Wave Server, there would
be a unique interface index for the following:
• Each T-1 physical interface of the system
• Each B channel of the system
• The Data link layer (LAPD) of each D channel
• The Network layer (Terminal Endpoint, also called the signaling channel) of each D
channel
Each D channel is subdivided into two layers, the data link and the network layer.
• All other interfaces in the system.
How do all these interfaces fit together? The Interfaces MIB (see “Interfaces agent” on
page 32-12) defines an Interface Table that contains generic descriptive, status, and statistical
information about all the interfaces in the system. In a typical management scenario, an alarm
received on an interface is reflected by the agent for the interface. The Manager can look up
specific alarm information from the interface’s own MIB, note the Interface Index for this
interface, and obtain general statistics for this interface (for example, the number of Octets
received on this interface, or the bandwidth of this interface) by looking up the Interface Table
(corresponding to this index) of the Interfaces MIB.
For the T-1 scenario, the Wave implementation of various layers of interfaces is shown below.
Release 2.0
September 2010