Weird PoE port to PoE Switch Port Problem

Discussion in 'Networking Issues' started by eric_stewart, Dec 6, 2007.

  1. eric_stewart

    eric_stewart Super Moderator Staff Member Member

    I don't know if anyone has seen this before, but if you have I would certainly like to hear about it! I recently installed an ASA 5505 at a customer site.

    The ASA 5505 has a built-in 8 port switch with two PoE (Power over Ethernet) ports, ports e0/6 and e0/7. I set up VLAN trunking on port e0/7 and connected it to a port on a Catalyst 3560 switch whose ports are all PoE. The port would come up fine. I could ping around to different IP addresses on other VLANs then suddenly I would lose connectivity. The customer's VoIP network, whose phones are all powered by the PoE switch, would all lose connectivity to their Nortel BCM (Business Call Manager). I was able to duplicate this behaviour on another PoE port on the ASA. When I moved the trunk over to a non-PoE port on the ASA 5505, everything came up and stayed up! I was able to duplicate this on another PoE port on the ASA 5505.

    Question: Has anyone else had a similar experience when connecting a PoE switch port to another switch's PoE port? Am I missing something? Is this something you can't do?

    /Eric
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice