Cisco Systems Dial NMS manual How to Inspect and Interpret Data

Task 3—Using MRTG to Monitor and Graph Traffic Loads

How to Inspect and Interpret Data

Table 16 User Information OIDs

Variable	Base MIB and OID	Description
Active user ID	CISCO-MODEM-MGMT-MIB	List of users currently connected
	.1.3.6.1.4.1.9.10.19.1.3.1.1.3	and authenticated.
Active call duration	CISCO-MODEM-MGMT-MIB	Call durations for currently
	.1.3.6.1.4.1.9.10.19.1.3.1.1.8	connected and authenticated users.
User CLID	CISCO-MODEM-MGMT-MIB	List of user Caller IDs (CLID).
	.1.3.6.1.4.1.9.10.19.1.3.1.1.2
DNIS phone number	CISCO-MODEM-MGMT-MIB	List of called Dialed Number
	.1.3.6.1.4.1.9.10.19.1.3.1.1.13	Information Service (DNIS) phone
		numbers.
Active TTY	CISCO-MODEM-MGMT-MIB	List of asynchronous terminal lines
	.1.3.6.1.4.1.9.10.19.1.3.1.1.14	(TTY) in use.
Active modem slot	CISCO-MODEM-MGMT-MIB	List of which user is using which
	.1.3.6.1.4.1.9.10.19.1.3.1.1.6	modem slot.
Active modem port	CISCO-MODEM-MGMT-MIB	List of which user is using which
	.1.3.6.1.4.1.9.10.19.1.3.1.1.7	modem port.
Active user IP	CISCO-MODEM-MGMT-MIB	List of which IP addresses are
	.1.3.6.1.4.1.9.10.19.1.3.1.1.4	currently in use.

How to Inspect and Interpret Data

Internet users spend approximately 80 percent of their time reading information—not downloading data. Modem traffic is very limited on a per user basis. People cannot read as fast as modems can download. Therefore, watch for the following types of trends and performance data on the access servers:

•PPP sessions in use.

•DS0s in use.

•Modem calls that have been rejected.

•The number of calls coming in to the access server and at what time.

•Spikes or dips in total calls connected outside the normal call pattern.

•Long-term trends that may mean that you need to upgrade components in your network.

•Throughput that has been reduced to unacceptable levels (potential bottlenecks).

•For disaster recovery purposes, when fail over events and routing swaps occur, look for drops in the primary data path and jumps in the backup path.

•The utilization of the IP backbone, such as a Frame Relay link or Ethernet campus.

Basic Dial NMS Implementation Guide

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