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Viewing GRE Tunnels

  1. Select Network > Elements > Tunnels.

  2. To filter for all GRE tunnels, click the Filter icon and type GRE in the Type field. (Alternatively, filter on “Type=GRE” in the Advanced Filter).

    Figure 1: Filtered GRE TunnelsScreenshot of a network management tool showing tunnel details: ID, NodeA.ID, IP_A, NodeZ.ID, IP_Z, BW, Type, Pri, Pre, Current_Route, Co.

  3. Select the GRE tunnel to view and then click Show Path to view its path.

    Figure 2: GRE Tunnel routed over LSP TunnelNetwork topology map showing nodes like ATL, BOS, and NYC connected by lines. A color-coded scale indicates utilization levels; green for low, red for high. Paths table details paths, interfaces, IP addresses, tunnel and connection types.

  4. Note that a tunnel itself can route over a tunnel (in this case, an LSP tunnel). The portion that travels over another tunnel is colored in purple.