Optical PoS Cisco Interface


This page discusses a number of settings for Packet over Sonet/SDH (PoS) found in IOS and XR.

PoS Cisco IOS Interface

  • MTU - Default MTU is 4470 Bytes.
  • Framing - Deals with type of framing SONET or SDH.
  • Encapsulation - Option include PPP, HDLC or Frame Relay.
  • Loopback - There are two type of loopbacks: Internal and Line. Internal is a software based loopback to check framing. RX is looped with TX for remote packets to be looped back.
  • Clocking
  • Scrambling
  • Alarms


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