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Sub-interface has same Tx/Rx load as physical interface (different bandwidths)

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Larry Sullivan
Participant
Participant

‎09-15-2018 10:58 AM

Hi,

 

My sub-interface (200 Mbps BW statement) is inheriting the Tx and Rx load from my physical interface (300 Mbps statement).  Is this some sort of bug?  Is there a workaround?  Anyone come across this?

 

 

GigabitEthernet0/0/0 is up, line protocol is up
  Hardware is BUILT-IN-2T+6X1GE, address is 0
  Description:xxxx
  MTU 1500 bytes, BW 300000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 192/255, rxload 180/255

 


GigabitEthernet0/0/0.643 is up, line protocol is up
  Hardware is BUILT-IN-2T+6X1GE, address is
  Description:xxxx
  Internet address is xxxx
  MTU 1500 bytes, BW 200000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 192/255, rxload 180/255

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Richard Burts
Hall of Fame
Hall of Fame
In response to Larry Sullivan

‎09-19-2018 12:38 PM

I had not noticed this but when I think about it I find it pretty logical. If you think about it you have a physical GigEther interface that is operating as a trunk interface. The vlan sub interfaces are logical/virtual interfaces which are differentiated by a vlan tag number. But all tx and rx activity is done by the physical interface. Your sub interface is not doing its own tx or rx and so there is not a good way to report tx or rx at the sub interface level.

 

HTH

 

Rick

HTH

Rick