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    VPN Diagnostics

    VPN ping and traceroute options can be accessed from the Diagnostics Manager, Ping > Device From Device and Traceroute options, when clicking the Advanced button and selecting the relevant vpn ping/traceroute commands.

    Additionally, Virtual Private Network (VPN) diagnostics can be accessed from Network > Services > VPN.

    Figure 1: VPN Summary Window

    VPN Summary Window

    In the VPN window, select the VPN for which you would like to run diagnostics from the left hand pane. To run a traceroute, right-click on a router in the VPN Topology tab on the right hand pane. Next, select the target node. This will open up the Diagnostics Manager with the appropriate advanced traceroute command.

    In the VPN window, select the VPN for which you would like to run diagnostics from the left hand pane and then click the Diagnostics button for the following window. Note that the possible source/destinations are listed in the CE Ping Matrix. The features accessible via the “Diagnostics” button is available for most, but not all, VPN types. Please contact Juniper support if you would like to request a particular feature.

    Note: Through the IP/MPLSView Web interface, basic VPN diagnostics can also be accessed from Live Network > View VPNs.

    Figure 2: VPN Diagnostics for Selected Layer 3 VPN

    VPN Diagnostics for Selected Layer 3 VPN

    Ping and Traceroute


    In the Ping/Trace Route section of the window, select a Source and Destination interface. Then, Click the “Ping“ button. The VPN Ping Results window will appear and ping probes will be issued on the live network. For an explanation of ping results, please refer to Ping Device From Device.

    Click the “Trace Route” button to issue the traceroute command on the live network. The trace route will open the VPN Trace Results window and a Paths window. For an explanation of the traceroute results, please refer to Traceroute from Device to Device.

    Alternatively, the trace route can be accessed via the VPN Topology window: Click on a VPN name in the left pane of the IP VPN window. In the right pane, select the VPN Topology tab. Right-click on the source node and select “Traceroute”. Then click on the second, or destination device in the VPN Topology. You can click on any segment of the path to zoom into that portion of the path on the Main/Standard Map window.


    CE Ping Matrix


    Click the “CE Ping Matrix” button to view a matrix of ping results, in milliseconds, between all Customer Edge (CE) devices in the selected VPN. Please refer to Ping Device From Device for more details.


    MPLS Ping


    To enable the MPLS Ping button, select an entry from the upper right table of the VPN Diagnostics window. Then select MPLS Ping>VPN Instance and enter in a Prefix/Mask.

    Figure 3: MPLS Ping Options

    MPLS Ping Options

    Show CLI Command


    You can also issue various “show” commands on the devices in the live network via the IP VPN window.

    Click on a VPN name in the left pane. In the right pane, select the tab called “Detailed”. A list of nodes/interfaces in the selected VPN will be shown in the table. Select the desired node for which you would like to issue the “show” command. Alternatively, click on “PE Devices” in the left pane tree. In the right pane, a table will display all PE devices in the network. Select the desired one.

    Then, at the bottom of the window, click on the “Actions” button and select “Run CLI” rom the popup menu. This will pop up the Show Command Window for that node. From the drop-down selection box, select the desired “show” command and press the “Go” arrow to the right to issue the command and view the results.

    Note: Because there are numerous “show” commands but only certain ones that each user cares about, it is up to the user to configure the most frequently used show commands in a special IP/MPLSView file. See Configuring the Show Commands for detailed instructions.

    Figure 4: VPN Actions

    VPN Actions

    Modified: 2016-11-08