Dial MIBs and OIDs Used in the Case Study

This section describes the MIBs and OIDs used to manage the dial Internet access service in the case study.

See the following tables and choose the variables you want to use in your network. Explore the OIDs and determine whether to poll and graph the results on a regular basis.

To explore the MIBs and OIDs, use UCD-SNMP. For more information, see the
"Task 2 Exploring SNMP Capabilities by Using UCD-SNMP" section.
To graph the trending statistics for a specific OID, use Multi Router Traffic Grapher (MRTG). For more information, see the "Task 3Using MRTG to Monitor and Graph Traffic Loads" section.

Caution Be cautious when polling network elements. Polling OIDs that retrieve large amounts of data can cause CPU problems on a Cisco IOS device. For example, do not get the ARP table, walk large portions of a MIB tree, poll the wrong OID too frequently, or get statistics that have an entry for every interface. For example, a Cisco 7200 may have 10 interfaces; whereas, a Cisco AS5800 may have 3,000 interfaces.

Table 10: MIBs to Consider Using for the Dial NMS
Dial Related
System Management
MIB II / Interfaces

CISCO-POP-MGMT-MIB¹

OLD-CISCO-CHASSIS

RFC1213-MIB

CISCO-MODEM-MGMT-MIB

CISCO-MEMORY-POOL-MIB

IF-MIB

CISCO-VPDN-MGMT-MIB

CISCO-SYSTEM-MIB

CISCO-CAS-IF-MIB

CISCO-AAA-SESSION-MIB

CISCO-FLASH-MIB

CISCO-ISDN-MIB

CISCO-AAA-SERVER-MIB

CISCO-CONFIG-MAN-MIB

CISCO-CALL-HISTORY-MIB

CISCO-PROCESS-MIB

CISCO-DIAL-CONTROL-MIB

CISCO-CALL-RESOURCE-POOL-MIB

¹This MIB was enhanced in Cisco IOS Release 12.1(2)XH and later releases.

**Table 10: MIBs to Consider Using for the Dial NMS**
Dial Related	System Management	MIB II / Interfaces
CISCO-POP-MGMT-MIB¹	OLD-CISCO-CHASSIS	RFC1213-MIB
CISCO-MODEM-MGMT-MIB	CISCO-MEMORY-POOL-MIB	IF-MIB
CISCO-VPDN-MGMT-MIB	CISCO-SYSTEM-MIB	CISCO-CAS-IF-MIB
CISCO-AAA-SESSION-MIB	CISCO-FLASH-MIB	CISCO-ISDN-MIB
CISCO-AAA-SERVER-MIB	CISCO-CONFIG-MAN-MIB
CISCO-CALL-HISTORY-MIB	CISCO-PROCESS-MIB
CISCO-DIAL-CONTROL-MIB
CISCO-CALL-RESOURCE-POOL-MIB

For a complete list of available Cisco MIBs, go to http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
For a list of Cisco-supported traps, go to http://www.cisco.com/public/mibs/traps
For more information about other NMS enhancements for dial, see Call Tracker plus ISDN and AAA Enhancements for the Cisco AS5300 and Cisco AS5800 at

: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121x/121xh/121xh_2/dt_cltrk.htm

Note To protect a network access server from over polling, use the SNMP get bulk feature. It's available in SNMP v2 in CISCO-BULK-FILE-MIB.

Table 11 and Table 12 identify useful OIDs and variables within selected MIBs from Table 10. Equivalent Cisco IOS commands are shown wherever applicable. Sometimes data is more clearly inspected by using OIDs and a graphing tool instead of CLI commands.

To see the complete structure of the CISCO-POP-MGMT-MIB and CISCO-MODEM-MGMT-MIB, go to the following URLs:

CISCO-POP-MGMT-MIB

: http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/dialnms/popmgt.txt

CISCO-MODEM-MGMT-MIB

: http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/dialnms/modemmgt.txt

Table 11: Description of CISCO-POP-MGMT-MIB
Description
OID
Equivalent Cisco IOS Command

Number of analog calls connected

cpmISDNCfgBChanInUseForAnalog

.1.3.6.1.4.1.9.10.19.1.1.2

show modem summary

Number of active DS0s in use

cpmActiveDS0s

.1.3.6.1.4.1.9.10.19.1.1.4

show controllers t1 call-counters

show isdn memory (See the number of call control blocks, CCBs, in the command output.)

Total call count per DS0

cpmCallCount

.1.3.6.1.4.1.9.10.19.1.1.1.1.7

show controllers t1 call-counters

Total time in use for each DS0

cpmTimeInUse

.1.3.6.1.4.1.9.10.19.1.1.1.1.8

show controllers t1 call-counters

Total octets received on a DS0

cpmInOctets

.1.3.6.1.4.1.9.10.19.1.1.1.1.9

None available

Total octets transmitted on a DS0

cpmOutOctets

.1.3.6.1.4.1.9.10.19.1.1.1.1.10

None available

Total packets received on a DS0

cpmInPackets

.1.3.6.1.4.1.9.10.19.1.1.1.1.11

None available

Total packets transmitted on a DS0

cpmOutPackets

.1.3.6.1.4.1.9.10.19.1.1.1.1.12

None available

Number of active PPP calls

cpmPPPCalls

.1.3.6.1.4.1.9.10.19.1.1.5

None available

Number of active V120 calls

cpmV120Calls

.1.3.6.1.4.1.9.10.19.1.1.6

None available

Number of active V110 calls

cpmV110Calls

.1.3.6.1.4.1.9.10.19.1.1.7

None available

Maximum number of DS0s used simultaneously

cpmActiveDS0sHighWaterMark

.1.3.6.1.4.1.9.10.19.1.1.8

show controllers t1 call-counters

Type of call currently connected to each DS0

cpmDS0CallType

.1.3.6.1.4.1.9.10.19.1.1.1.1.5

None available

**Table 11: Description of CISCO-POP-MGMT-MIB**
Description	OID	Equivalent Cisco IOS Command
Number of analog calls connected	cpmISDNCfgBChanInUseForAnalog .1.3.6.1.4.1.9.10.19.1.1.2	show modem summary
Number of active DS0s in use	cpmActiveDS0s .1.3.6.1.4.1.9.10.19.1.1.4	show controllers t1 call-counters show isdn memory (See the number of call control blocks, CCBs, in the command output.)
Total call count per DS0	cpmCallCount .1.3.6.1.4.1.9.10.19.1.1.1.1.7	show controllers t1 call-counters
Total time in use for each DS0	cpmTimeInUse .1.3.6.1.4.1.9.10.19.1.1.1.1.8	show controllers t1 call-counters
Total octets received on a DS0	cpmInOctets .1.3.6.1.4.1.9.10.19.1.1.1.1.9	None available
Total octets transmitted on a DS0	cpmOutOctets .1.3.6.1.4.1.9.10.19.1.1.1.1.10	None available
Total packets received on a DS0	cpmInPackets .1.3.6.1.4.1.9.10.19.1.1.1.1.11	None available
Total packets transmitted on a DS0	cpmOutPackets .1.3.6.1.4.1.9.10.19.1.1.1.1.12	None available
Number of active PPP calls	cpmPPPCalls .1.3.6.1.4.1.9.10.19.1.1.5	None available
Number of active V120 calls	cpmV120Calls .1.3.6.1.4.1.9.10.19.1.1.6	None available
Number of active V110 calls	cpmV110Calls .1.3.6.1.4.1.9.10.19.1.1.7	None available
Maximum number of DS0s used simultaneously	cpmActiveDS0sHighWaterMark .1.3.6.1.4.1.9.10.19.1.1.8	show controllers t1 call-counters
Type of call currently connected to each DS0	cpmDS0CallType .1.3.6.1.4.1.9.10.19.1.1.1.1.5	None available

Table 12: Description of CISCO-MODEM-MGMT-MIB
Variable Description
OID
Equivalent Cisco IOS Command

Modems available to take calls

cmSystemModemsAvailable

.1.3.6.1.4.1.9.9.47.1.1.7

show modem summary

Average call duration for each modem

cmCallDuration

.1.3.6.1.4.1.9.9.47.1.3.1.1.9

show modem

Number of times each modem failed to answer

cmRingNoAnswers

.1.3.6.1.4.1.9.9.47.1.3.3.1.1

show modem

Number of times each modem failed to train up successfully

cmIncomingConnectionFailures

.1.3.6.1.4.1.9.9.47.1.3.3.1.2

show modem

Number of times each modem successfully trained up

cmIncomingConnectionCompletions

.1.3.6.1.4.1.9.9.47.1.3.3.1.3

show modem

Current TX speed for all the modems

cmTXRate

.1.3.6.1.4.1.9.9.47.1.3.1.1.14

show modem connect-speeds

Current RX speed for all the modems

cmRXRate

.1.3.6.1.4.1.9.9.47.1.3.1.1.15

show modem connect-speeds

List of users currently connected and authenticated

cpmActiveUserID

.1.3.6.1.4.1.9.10.19.1.3.1.1.3

show caller

Call durations for currently connected and authenticated users

cpmActiveCallDuration

.1.3.6.1.4.1.9.10.19.1.3.1.1.8

show caller

List of user CLIDs

cpmActiveRemotePhoneNumber

.1.3.6.1.4.1.9.10.19.1.3.1.1.2

show caller ip

show isdn history

List of called DNIS phone numbers

cpmActiveLocalPhoneNumber

.1.3.6.1.4.1.9.10.19.1.3.1.1.13

show caller ip

List of TTY interfaces in use

cpmActiveTTYNumber

.1.3.6.1.4.1.9.10.19.1.3.1.1.14

show caller ip

List of which user is using which modem slot

cpmActiveModemSlot

.1.3.6.1.4.1.9.10.19.1.3.1.1.6

show caller user

List of which user is using which modem port

cpmActiveModemPort

.1.3.6.1.4.1.9.10.19.1.3.1.1.7

show caller user

List of which IP addresses are currently in use

cpmActiveUserIpAddr

.1.3.6.1.4.1.9.10.19.1.3.1.1.4

show caller ip

Variable Description	OID	Equivalent Cisco IOS Command
Modems available to take calls	cmSystemModemsAvailable .1.3.6.1.4.1.9.9.47.1.1.7	show modem summary
Average call duration for each modem	cmCallDuration .1.3.6.1.4.1.9.9.47.1.3.1.1.9	show modem
Number of times each modem failed to answer	cmRingNoAnswers .1.3.6.1.4.1.9.9.47.1.3.3.1.1	show modem
Number of times each modem failed to train up successfully	cmIncomingConnectionFailures .1.3.6.1.4.1.9.9.47.1.3.3.1.2	show modem
Number of times each modem successfully trained up	cmIncomingConnectionCompletions .1.3.6.1.4.1.9.9.47.1.3.3.1.3	show modem
Current TX speed for all the modems	cmTXRate .1.3.6.1.4.1.9.9.47.1.3.1.1.14	show modem connect-speeds
Current RX speed for all the modems	cmRXRate .1.3.6.1.4.1.9.9.47.1.3.1.1.15	show modem connect-speeds
List of users currently connected and authenticated	cpmActiveUserID .1.3.6.1.4.1.9.10.19.1.3.1.1.3	show caller
Call durations for currently connected and authenticated users	cpmActiveCallDuration .1.3.6.1.4.1.9.10.19.1.3.1.1.8	show caller
List of user CLIDs	cpmActiveRemotePhoneNumber .1.3.6.1.4.1.9.10.19.1.3.1.1.2	show caller ip show isdn history
List of called DNIS phone numbers	cpmActiveLocalPhoneNumber .1.3.6.1.4.1.9.10.19.1.3.1.1.13	show caller ip
List of TTY interfaces in use	cpmActiveTTYNumber .1.3.6.1.4.1.9.10.19.1.3.1.1.14	show caller ip
List of which user is using which modem slot	cpmActiveModemSlot .1.3.6.1.4.1.9.10.19.1.3.1.1.6	show caller user
List of which user is using which modem port	cpmActiveModemPort .1.3.6.1.4.1.9.10.19.1.3.1.1.7	show caller user
List of which IP addresses are currently in use	cpmActiveUserIpAddr .1.3.6.1.4.1.9.10.19.1.3.1.1.4	show caller ip

Table of Contents

Dial MIBs and OIDs Used in the Case Study

Dial MIBs and OIDs Used in the Case Study