Network Router User Manual

A-3
Cisco 7304 Router MIB Specifications Guide
OL-4925-02
Appendix A Using MIBs
Managing Router Physical Entities
Mapping OLD-CISCO-CHASSIS-MIB to ENTITY-MIB
Use the ENTITY-MIB instead fo the OLD-CISCO-CHASSIS-MIB on the 7304 platform starting with
the following releases:
• 12.3T
• 12.2SB
Serial numbers for the new port adapter hardware has been revised to be alphanumeric values instead of
numeric values. As a result, all new hardware might display a zero (0) as cardSerial number in the
OLD-CISCO-CHASSIS-MIB, including port adapters.
The key mappings for the OLD-CISCO-CHASSIS-MIB attributes are:
• CardType (integer value) -> entPhysicalVendorType (OID)
• cardSerial (integer value) -> entPhysicalSerialNum (String)
• cardSlotNumber -> entPhysicalContainedIn and entPhysicalParentRelPos
The difference between the ENTITY-MIB and the OLD-CISCO-CHASSIS-MIB is that the entity
physical table in the ENTITY-MIB contains all physical entities supported in the router and the card
table in the OLD-CISCO-CHASSIS-MIB only contains entries for the modules, such as the processor
card and the port adapter which is in the router. The entity physical entry contains corresponding data
for the cardType, cardSerial, and the cardSlotNumber objects which are in the card table entry of the
OLD-CISCO-CHASSIS-MIB.
Entity Containment Tree
Each entity physical entry contains entPhysicalContainedIn and entPhysicalParentRelPos. The entire
entity physical table represents a entity containment tree started from root, which is the chassis.
The following is a example of the entity containment tree for the C7304R which contains
PA-A6-OC3MM in the PA slot 4. Each row has entPhysicalIndex, MIB variable, entPhysicalName,
entPhysicalModelName, and entPhysicalVendorType (vendor OID) for the MIB variable.
Note Not all MIB objects in the entPhysicalentry are shown in this example.
Example A-1 Example of the Entity Containment Tree:
1 (cevChassis7204Vxr) : Chassis : CISCO7304 : 1.3.6.1.4.1.9.12.3.1.3.75
2 (cevContainerSlot) : I/O and CPU Slot 0 : {} : 1.3.6.1.4.1.9.12.3.1.5.1
7 (cevCpu7200Npeg1) : NPE-G1 0 : NPE-G1 : 1.3.6.1.4.1.9.12.3.1.9.5.56
other entities conatined under the NPE-G1…
3 (cevContainerSlot) : PA Slot 1 : {} : 1.3.6.1.4.1.9.12.3.1.5.1
4 (cevContainerSlot) : PA Slot 2 : {} : 1.3.6.1.4.1.9.12.3.1.5.1
5 (cevContainerSlot) : PA Slot 3 : {} : 1.3.6.1.4.1.9.12.3.1.5.1
6 (cevContainerSlot) : PA Slot 4 : {} : 1.3.6.1.4.1.9.12.3.1.5.1
30 (cevPaA6mmOc3) : module 4 : PA-A6-OC3MM= : 1.3.6.1.4.1.9.12.3.1.9.4.106
other entities info (i.e port) contained under PA-A6…
other entities contained under the CISCO7304…
Table A-1 lists the OLD-CISCO-CHASSIS-MIB variables and shows the equivalent MIB variable from
the ENTITY-MIB and CISCO-ENTITY-EXT-MIB.