Table Of Contents
Dial MIBs and OIDs Used in the Case Study
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 on page 45.
•To graph the trending statistics for a specific OID, use Multi Router Traffic Grapher (MRTG). For more information, see the "Task 3—Using MRTG to Monitor and Graph Traffic Loads" section on page 53.
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
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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, refer to the Appendix in "Task 3—Using MRTG to Monitor and Graph Traffic Loads" section on page 53. For further MIB information, refer to the following links:
•For descriptions of supported MIBs and how to use MIBs, see the Cisco MIB web site on Cisco.com at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
•To obtain lists of MIBs supported by platform and Cisco IOS release and to download MIB modules, go to the Cisco MIB web site on Cisco.com at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
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
|
|
|
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
|
|
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
|
|
Total packets transmitted on a DS0
|
cpmOutPackets
.1.3.6.1.4.1.9.10.19.1.1.1.1.12
|
|
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
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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
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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
|
|
|
Average call duration for each modem
|
cmCallDuration
.1.3.6.1.4.1.9.9.47.1.3.1.1.9
|
show modem
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Number of times each modem failed to answer
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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
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List of users currently connected and authenticated
|
|
|
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
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cpmActiveLocalPhoneNumber
.1.3.6.1.4.1.9.10.19.1.3.1.1.13
|
show caller ip
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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
|
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