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  • 1.  Protect against someone accidentally plugging in an IP phone twice

    Posted 23 days ago

    We have some 1930 switches configured with very basic STP configuration and also auto-voice-VLAN that puts voice traffic in VLAN 20.

    Everything works fine until someone mistakenly connects the PC port of the IP phone to a second port on the switch.

    I'm looking for any advice on how to prevent this from causing the switch to crash.  If that particular IP phone stops working thats okay, but in the current state, after about 5 minutes the switch is totally unresponsive after accidentally double connecting an IP phone.



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    Jon Dison
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  • 2.  RE: Protect against someone accidentally plugging in an IP phone twice

    Posted 21 days ago

    Hey Jon,

    Can you let me know which 1930 Switch model and version of firmware you're using?



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    Aruba Instant On Communications
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  • 3.  RE: Protect against someone accidentally plugging in an IP phone twice

    Posted 20 days ago

    JL814A

    2.7 in local management mode



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    Jon Dison
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  • 4.  RE: Protect against someone accidentally plugging in an IP phone twice

    Posted 14 days ago

    Thanks, Jon, for providing the information.

    We have checked with the Team internally and not seeing this issue. Can you please contact support to open a case to triage further https://www.arubainstanton.com/contact-support/ 



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    Aruba Instant On Communications
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  • 5.  RE: Protect against someone accidentally plugging in an IP phone twice

    Posted 16 days ago
    Hi,

    i encountered the same problem with other branded switches.

    i think that the IP Phone itself shall support STP protocol and it shall be enabled on the IP Phone.

    as protecting the Network from loop traffic shall be contributed by all network devices that have more than 1 port.

    like the IP Phone device, has a mini 2 ports switch.