VMware NSX

 View Only
Expand all | Collapse all

NSX-T TEP Communication down

  • 1.  NSX-T TEP Communication down

    Posted Aug 22, 2022 09:29 AM

    I ran NSX-T 3.1 in my test Environment, and I have 1 Port Group in my vcenter and I config this scenario:

    Hamidreza74_0-1661160438512.png

     

    But after I config Host transport Node and Edge node TEP tunnel will be down after 10 minutes, i used the same port Group for Overlay and VLAN Transport Zone
    Does anybody have an idea?



  • 2.  RE: NSX-T TEP Communication down

    Posted Aug 22, 2022 09:46 AM

    Hi,

    Kindly refer to the below KB article.

    https://kb.vmware.com/s/article/83743

     



  • 3.  RE: NSX-T TEP Communication down

    Posted Aug 23, 2022 07:35 PM

    Thanks  
    I am confused, I read documents and  try many scenarios but my TEP tunnel still down
    can you help me
    I have one port Group that is connected to the Physical Switch, I used this port Group for overlay and TEP tunnel
    and also I have Port Group Trunk for north/south Traffic.
    I want to test NSX-T in my lab environment, I can't create an extra VLAN on the physical switch 

    Hamidreza74_0-1661283034151.png

     



  • 4.  RE: NSX-T TEP Communication down

    Posted Aug 23, 2022 10:01 PM

    Are you using the same VLAN for edge and host TEPs?



  • 5.  RE: NSX-T TEP Communication down

    Posted Aug 24, 2022 04:08 AM

    Yes



  • 6.  RE: NSX-T TEP Communication down

    Posted Aug 24, 2022 07:54 AM

    Assuming you are using vDS7 & single VLAN for uplink (north/south), here is my suggestion

    1. In NSX-T, create a VLAN-backed segment allowing Uplink & TEP VLANs

    2. Connect the Edge node interfaces (fp-eth0 & fp-eth1) to this portgroup.

    This should resolve your issue.

     



  • 7.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 06:37 AM

    Thanks   I Create a VLAN-backed segment and allowed Uplink & TEP VLANs:

    Hamidreza74_0-1661409065513.png

    VLAN 1001 UPLINK 
    VLAN 30 for overlay
    and then connect edge node to this Segment 

    Hamidreza74_1-1661409227998.png


    also, I create Uplink Profile "NSX-Ege" and Assign Transport VLAN 100

    but still, tunnel is down



  • 8.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 08:11 AM

    Hi,

    Are you able to ping the TEP IPs using a larger MTU size i.e. from Host TEP to Edge node TEP?

    Here is the command you can use on the ESXi host.

    ping -S vxlan -s 1600 -d <destination-tep>



  • 9.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 08:21 AM

    NO, I changed MTU Size on VDS to 1600, I think in the Physical switch I should change MTU to 1600, am I right?



  • 10.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 08:32 AM

    Yes, on the physical switch as well you have to change the MTU.



  • 11.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 10:02 AM

       Can I Use Dedicate PG for overlay Traffic and change MTU size in Vcenter? in this scenario TEP tunnel is not thrown over a physical switch 



  • 12.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 10:29 AM

    I am not sure if that solution will work. Instead, you can deploy a virtual router or VM which supports routing & configure the TEP gateway in it. There are many free options available for lab.



  • 13.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 12:24 PM

    Thanks  I have Virtual Router and Deploy this Scenario But in Transport Node Uplink  PG is not available, I have ESXI Host and ESXI has 2 uplinks 2  to physical switch when I configure Transport Node Active Interfaces is not Show 

    Hamidreza74_0-1661430180865.png

     



  • 14.  RE: NSX-T TEP Communication down

    Posted Aug 25, 2022 02:56 PM

      I don't have any limitations in my LAB environment (ESXI)  and I have Cisco Router and 1 PG group that is connected to a Physical switch, can you help with a simple solution that I can Test and MY TEP is UP



  • 15.  RE: NSX-T TEP Communication down

    Posted Aug 26, 2022 07:09 AM

    If you have a router, then create a router-on-stick architecture. Make your router as the default gateway for both the VLANs & configure the larger MTU on the interface. Also if possible could you please provide a logical diagram of your lab environment?