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6 Replies Latest reply: Mar 20, 2013 3:38 PM by Roddy Rodstein RSS

OVM Manager w 2nd NIC = A port conflict was detected in the server config

Roddy Rodstein Explorer
Currently Being Moderated
Greetings,

ENV: Oracle VM 3.1.1.544.
Issue: We had to add/setup a second interface/NIC on a second subnet on Oracle VM Manager. Now, when ovmm is started, we get: <A port conflict was detected in the server configuration. The server is configured to listen on two ports that have the same port number and IP address. Channel "https" address "https://fe80:0:0:0:26b6:fdff:fec8:f4b1:7002" conflicts with channel "https" address "https://fe80:0:0:0:26b6:fdff:fec8:f4b1:7002".>

BEA Docs (http://docs.oracle.com/cd/E13222_01/wls/docs92/messages/Server.html)
BEA-002633: Emergency: A port conflict was detected in the server configuration. The server is configured to listen on two ports that have the same port number and IP address. Channel "channel1" address "url" conflicts with channel "channel2" address "url".
Action: Please ensure that the address identities [ListenAddress and ListenPort combinations] are distinct and unique.

Would you happen to know which file, (i.e. config.xml), and which lines (i.e. <listen-address>) we need to edit, with the correct syntax to add a second IP address/subnet to our WebLogic server?

Thank you in advance for your support!

Regards,
Roddy
  • 1. Re: OVM Manager w 2nd NIC = A port conflict was detected in the server config
    user12273962 Pro
    Currently Being Moderated
    While I have never seen that specific error, I do have a couple questions.

    1. What version of Linux?
    2. Have you set a separate DNS name for the second interface IP? You probably should.
    3. Do you still have a single default route or are you trying to use more than one?

    I run 5 nics on my VM Manager. All on different subnets. I suspect the VM Manager is getting confused when it comes to identify its hostname and the various connections the host has.
  • 2. Re: OVM Manager w 2nd NIC = A port conflict was detected in the server config
    Roddy Rodstein Explorer
    Currently Being Moderated
    Thank you for your support!

    1. What version of Linux? OL 62 x64
    2. Have you set a separate DNS name for the second interface IP? No, although we are using/setup dnsmasq on the second interface/eth3 to dish up DNS on the private network. DNS name resolutions works like a charm on the private vlan.
    3. Do you still have a single default route or are you trying to use more than one? The second interface is in a private unroutable network. the front end network/NIC eth0 is routable and on a public network.

    Public/Private Network Setup:
    * Public network with oracle vm manager on eth0/10.4.x.x. This is how we access the ovm manager GUI, and ssh to manager, and via manager ssh to the dom0s. The dom0s are on private nonroutable networks available via the manager host's eth3.
    * Private networks accessible via the oracle vm manager host eth3/802.1q/VLAN xxx. this is the server management network channel, this vlan is not routable. We have two other vlans, i.e. heartbeat and live migration, both also not routable.

    Thoughts?
  • 3. Re: OVM Manager w 2nd NIC = A port conflict was detected in the server config
    user12273962 Pro
    Currently Being Moderated
    Check out this document.

    http://docs.oracle.com/cd/E29505_01/doc.1111/e13806/network.htm#i1078331

    I think you're looking for section 4.4 thru 4.4.2

    I would at least try adding a different host name of the nic you added. Add an entry to hosts file for the IP and then vi the if-eth# nic you added and add a entry

    HOSTNAME=whatever.

    Then do a "service network restart".

    You want to get rid of the conflict, you probably don't care about actually making weblogic accessible on the new nic. Hope this helps.
  • 4. Re: OVM Manager w 2nd NIC = A port conflict was detected in the server config
    Roddy Rodstein Explorer
    Currently Being Moderated
    user12273962,

    Thank you for your support!

    We did try http://docs.oracle.com/cd/E29505_01/doc.1111/e13806/network.htm#i1078331, no love.

    We discovered that adding interfaces post oracle vm manager installations generate the "A port conflict was detected in the server config" errors/condition. O support was unable to provide a fix. We uninstalled oracle vm manager, did a UUID reinstall, and the A port conflict was detected in the server config" error was gone.

    thank you again for your support!

    Roddy
  • 5. Re: OVM Manager w 2nd NIC = A port conflict was detected in the server config
    Pioneer Newbie
    Currently Being Moderated
    Hi,

    I also had this problem, but the reason was that I had two virtual eth adapters (eth1.1 and eth1.2). IPV6 generates the same link local adres for both interfaces (based on MAC of physical adapter) and then weblogic / ovm manager wouldnt start. I removed the double ipv6 adres from the adapter and all works.

    You should spot double ipv6 adresses with ifconfig -a on the host, do you have any virtual adapters configured?
  • 6. Re: OVM Manager w 2nd NIC = A port conflict was detected in the server config
    Roddy Rodstein Explorer
    Currently Being Moderated
    Pioneer,

    Thank you for your assistance!

    We do have a virtual 802.1q interface on one of the two active interfaces, i.e. eth0/access port, eth3/802.1q VLAN.

    Respectfully,
    Roddy

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