QuestionQ320

Infrastructure Services

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Refer to the exhibit. Following a router reload, an administrator found that the interface-utilization graphs in the NMS were inconsistent with their prior history.

Which action prevents this issue after a future router reload?

  • A Configure SNMP interface index persistence on the router.
  • B Save the router configuration to startup-config before reloading the router.
  • C Rediscover all the router interfaces through SNMP after the router is reloaded.
  • D Configure SNMP to use static OIDs referring to individual router interfaces.
Explanation

SNMP interface-index persistence keeps each interface’s IF-MIB ifIndex value consistently mapped to its interface name across reloads. This lets the NMS continue associating collected utilization counters and historical graphs with the same interfaces.

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