How to handle GRE tunnel down alarm
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How to handle GRE tunnel down alarm

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Article ID: 330579

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Updated On:

Products

VMware NSX

Issue/Introduction

Title: Alarm for GRE
Event ID: infrastructure_communication.gre_tunnel_down
Added in release: 4.1.2
Alarm Description:
  • Purpose: GRE tunnel is down since GRE keepalives are not received for dead multiplier times.
  • Impact: Traffic sent through the tunnel will be impacted.
Resolution:
Check network connectivity between the GRE tunnel endpoints.
  • Is there a work around?
    Repair network connectivity between the GRE tunnel endpoints, or restore connectivity by re-configuring alternative routes for connectivity between the endpoints.
  • Maintenance window required for remediation?
    No. The GRE tunnel will auto-recover after connectivity between the tunnel endpoints has been restored.


Environment

VMware NSX-T Data Center
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