Performance Metrics Flashcards Preview

CompTIA N10-007 Network+ > Performance Metrics > Flashcards

Flashcards in Performance Metrics Deck (2)
Loading flashcards...
1
Q

Monitoring the interface

A
  • Often your first sign of trouble
    • The local problems are easy to attack
  • Can sometimes indicate a bigger issue
    • Problem with a switch or congestion in the network
  • View in the operating system
    • Interface details
  • Monitor with SNMP
    • Remote monitoring of all devices
    • Most metrics are in MIB-II
2
Q

Interface monitoring

A

Link status - link up, or link down?
• May be a problem on the other end of the cable

  • Error rate
    • Problems with the signal - CRC error, runt, giant
  • Utilization
    • Per-interface network usage
    • Run bandwidth tests to view throughput

• Discards, packet drops
• No errors in the packet, but system could not
process

  • Interface resets
    • Packets are queued, but aren’t sent
    • Connection is good, but line protocols aren’t talking
    • Reset and hope for the best
• Speed and duplex
  • These should match on both sides
  • Auto speed and auto duplex isn’t always the best 
     option
  • Check for expected throughput

Decks in CompTIA N10-007 Network+ Class (86):