How to check the ifindex of an interface on the switch

Latest reply: Mar 11, 2016 01:22:03 2039 2 0 0
There are situations where we need to find out the corespondence between the ifindex and the interface names. For instance, if we receive a log on the switch that is refereing to a ifindex number but does not mention the exact interface name, we would need to know this corelation in order to indentify where the problem resides.




Example:

Feb  9 2016 08:47:12 xxxx %%01IFNET/4/BWRATE_OUT_RESUME(l)[0]:Interface output flow bandwidth usage was restored to the log threshold. (Interface=10, BandWidthUsage=85, LogThreshold=90)



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Selina742
Created Mar 11, 2016 01:22:03 Helpful(0) Helpful(0)




To indentify the interface index of the interfaces, I can suggest the following solutions:

--Ru-Run the display rm interface command to check the ifindex of the intenterface directly in the CLI . By running this command the ifindex is shown in hex and you would need to convert it to decimal :
Example:
[R6_U11_S5710]display rm interface                                                                                                 
                                                                                                                                   
Name: GigabitEthernet0/0/5                                                                                                         

Physical IF Info:                                                                                                                  

IfnetIndex: 0xA         //  convert the hex value to decimal to obtain the ifindex (0xA = 10 )                                                                                                 

State: DOWN BCA MULT                                                                                                              

Hardware Address: F84A-BFF0-2E70                                                                                                  

Slot: 0(Logic Slot: 9)                                                                                                            

IntType: 36, PriLog: 0, MTU: 1500, Reference Count: 1                                                                             

Bandwidth: 0, 100000000                                                                                                           

Baudrate: 0, 100000000                                                                                                            

Delay: 0, Reliability: 0, Load: 0                                                                                                 

LDP-ISIS sync capability: disabled                                                                                                

LDP-OSPF sync capability: disabled                                                                                                

InstanceID: 0, Instance Name: Public                                                                                              

Age: 88548sec  




          -Use the below public OIDs to query the name and the ifindexes of the interfaces

ifName is Oid .1.3.6.1.2.1.31.1.1.1.1 and ifIndex is oid .1.3.6.1.2.1.2.2.1.1


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debugger
Created Mar 11, 2016 01:22:03 Helpful(0) Helpful(0)

diagnose

display ifnet index-map

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