Bouncing Meraki Tunnel in 17.18.1 on C9200-48P

[JeroenVercoulen]

Hi All,

I see in the logs on the switch and in the Meraki Dashboard that the tunnel is flipping several times a day. Is this expected behaviour? Within 5 second the tunnel is up again.

Sep 25 04:32:37.863: %LINEPROTO-5-UPDOWN: Line protocol on Interface TLS-VIF2, changed state to down
.Sep 25 04:32:37.870: %SYS-5-CONFIG_I: Configured from console by vty0
.Sep 25 04:32:37.733: %MERAKI_MGRD-5-PRI_TUNNEL_STATE: Switch 1 R0/0: meraki_mgrd: Primary Tunnel State: state changed from UP to DOWN
.Sep 25 04:32:37.733: %MERAKI_MGRD-5-SEC_TUNNEL_STATE: Switch 1 R0/0: meraki_mgrd: Secondary Tunnel State: state changed from UP to DOWN
.Sep 25 04:32:43.556: %SYS-5-CONFIG_I: Configured from console by vty0
.Sep 25 04:32:43.560: %SYS-5-CONFIG_I: Configured from console by vty0
.Sep 25 04:32:43.565: %SYS-5-CONFIG_I: Configured from console by vty0
.Sep 25 04:32:43.565: %LINEPROTO-5-UPDOWN: Line protocol on Interface TLS-VIF2, changed state to up
.Sep 25 04:32:43.436: %MERAKI_MGRD-5-PRI_TUNNEL_STATE: Switch 1 R0/0: meraki_mgrd: Primary Tunnel State: state changed from DOWN to UP
.Sep 25 04:32:43.436: %MERAKI_MGRD-5-SEC_TUNNEL_STATE: Switch 1 R0/0: meraki_mgrd: Secondary Tunnel State: state changed from DOWN to UP

[alemabrahao]

I suggest you open a support case.

[PhilipDAth]

17.18.1 is listed as a beta software release.

Can you drop back to a stable release candidate?

[PhilipDAth]

Does the upstream firewall show any traffic being blocked?

[JeroenVercoulen]

unfortunately it doesn't block anything for this.

[GIdenJoe]

Maybe it's a way to test multiple VLANs to have dashboard connectivity so it doesn't stick to a wrong VLAN like in 17.15.x?  The UAC thing has been an issue.

UAC does remind me too much of DooM.