Network Interfaces

• Is an ifIndex logical or physical?

  • In old days, one used ifType, but these values are not generally well defined. Some RFCs define the value to use EtherLike-MIB, Frame Relay, ATM... others do not, such as 802.1Q VLANS in RFC 2674.
  • Use ifConnectorPresent.x to determine if you are looking at a logical or physical interface.

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