Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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L2 GRE keepalive

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  • 1.  L2 GRE keepalive

    MVP
    Posted Jul 23, 2014 08:55 AM

    Hi,

     

    Doing some testing with layer 2 tunnels and runnign into an issue.

    I've configured the following

     

    configure terminal 
	interface tunnel 1
        description "naar edge"
        tunnel source 192.168.253.1
        tunnel mode gre 0
        tunnel destination 11.11.11.1
        trusted
        mtu 1400
        tunnel vlan 252
		no shutdown
!

configure terminal 
	interface tunnel 1
        description "naar main"
        tunnel source 11.11.11.1
        tunnel mode gre 0
        tunnel destination 192.168.253.1
        trusted
        mtu 1400
        tunnel vlan 252
!

     where both .1 addresses are vrrp addresses.

    This works fine but as soon as I enable keepalives on the tunnel interface everything stops working.

    For some reason the keepalives fail 100% of the time, even in a lab environment where everything is directly connected with eachother.

     

    Anybody got an idea why? If the tunnel is up and passing trraffic, howcome the keepalives don't get through?



  • 2.  RE: L2 GRE keepalive

    EMPLOYEE
    Posted Jul 23, 2014 09:55 AM

    What version of ArubaOS is this?

     



  • 3.  RE: L2 GRE keepalive

    MVP
    Posted Jul 23, 2014 09:57 AM

    vrrp master 6.3.1.8 to vrrp master 6.1.3.7

    Enabling it only on the 6.3.1.8 master was enough to break to tunnel.



  • 4.  RE: L2 GRE keepalive
    Best Answer

    EMPLOYEE
    Posted Jul 23, 2014 10:04 AM

    6.3.1.9 fixes that, OR disable keepalives.

     

    gre.JPG



  • 5.  RE: L2 GRE keepalive

    MVP
    Posted Jul 23, 2014 10:06 AM

    Thanks, didn't catch that bug..  runnign without keepalive at the moment so case closed.