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SNMP Interface Index

Hello everyone, under what circumstances does the index for an interface change? Is it possible for a monitoring tool to report over 30 000 interfaces indexes changes in one night?. I know that this value could change after a reload, removing logical or physical interfaces, but I wasn't aware that this could happen in a night and without any loss of connection.

Any help will be much appreciated.

1 Reply 1

marce1000
VIP
VIP

 

 - Perhaps , dialer or tunnel activity , check this document to make indexes persistent :

       https://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/28420-ifIndex-Persistence.html

 M.



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