Switching

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Ask questions and share experiences about EX and QFX portfolios and all switching solutions across your data center, campus, and branch locations.
  • 1.  mac address issue on EX4300

    Posted 17 days ago

    I have an issue with a device that is connected to a wall port that's connected to an ex4300 switch. I am unable to find the device's mac address in the mac address table and thus the device is not receiving an IP address. I have tried switching the cables connected directly to the wall from the phone and I am receiving the same problem. I then tried to connect the phone directly to the switch and I am still unable to find the mac address in the switch. I have configured 3 new ports with data and voice vlans and whenever I try to connect the voip device to the newly configured ports(directly from device to switch), I am still unable to find the mac address of the device.  So my question is, why wouldnt the switch be able to dynamically learn a device's mac even when it is directly connected to the switch port.

    For more context, this is a cisco 8841 VOIP phone. The phone is displaying the message "Verify network connection"



  • 2.  RE: mac address issue on EX4300

    Posted 5 days ago

    Can you check to see if that port has link on the switch? Could be a bad port on the phone.



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    Mario Eirea
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