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Diagnostics

 

The Diagnostics Manager feature enables you to run network diagnostic tools such as ping, CLI commands, test connectivity, and traceroute. Adobe Flash needs to be installed to run certain tools.



Diagnostics Manager



Diagnostics Manager provides the capability to perform basic and advanced ping commands as well as checking router connectivity.

The Run CLI feature provides the capability to run multiple CLI commands on a selected device.



Run CLI and Diagnostic Tool

To use the Run CLI tool in the IP/MPLSView interface:

  1. Select Performance > Diagnostics > Run CLI.
  2. Select the name of the device from the Device pane.
  3. From the CLI Commands pane, expand the command category for the command you want to run.
  4. Select the check box for the specific CLI command you want to run, and click Collect.
  5. Specify the appropriate parameters for your command, and click Run CLI.

    The Output pane displays the command output for the selected CLI command, as shown in Figure 1.

    Figure 1: Run CLI Window for Selected Device
    Run CLI Window for Selected Device

You can also execute CLI commands and open the Diagnostics Manager by selecting the Actions tab from the Node Info pane. See Figure 2.

Figure 2: Run CLI from Actions Tab of Node Info Pane
Run CLI from Actions Tab of Node
Info Pane

Take any of the following actions:

  • To run a single CLI command, select the command from the Execute CLI Command drop-down menu.

  • To execute multiple CLI commands in a batch, select Execute CLI Commands.

  • To access the Diagnostics Manager, select Open Diagnostic Manager.

For more detailed information about running CLI commands and accessing the Diagnostics Manager from the Node Info page, see Nodes.



Ping Multiple Routers



Use the Ping Multiple Routers function to check the connectivity between multiple routers in the network, and measure latency and packet loss. Ping results are generated, displaying the ping times between all possible pairs of the selected routers. Ping time refers to the time it takes for a small packet of data to travel from one device to another and back.

Select multiple routers from the list. Then, click Run and wait until all the results have populated in the table. This might take a few minutes. Figure 3 shows the Ping window.

Figure 3: Ping Multiple Routers
Ping Multiple Routers
Note

The designation “n/a” (not available) may signify that the ping operation timed out. If there are VPNs in your network, it may signify that the two devices are not in the same VPN.

The default color codings and ping thresholds are described in Table 1. These values can be adjusted by the administrator.

Table 1: Default Color Codings

Color

Meaning

Green

Acceptable. The ping operation took less than 150 ms.

Yellow

Problematic. The ping operation took between 150 ms and 400 ms.

Red

Unacceptable. The ping operation timed out or took longer than 400 ms. There may not be any connectivity between the two devices.

Note

Each outcome displayed in the table is actually the result of multiple pings. The Ping Count, or number of pings actually issued between devices, depends upon the diagnostics settings configured by the Web administrator in Admin > Diagnostics Settings. Ping parameter settings are described in Diagnostic Configuration Settings.

In the ping results table (Table 2), the default view shows the average (avg) ping results, in milliseconds. You can also choose to display the minimum, maximum, or loss percent of the pings by clicking on the respective word(s) following the table. See Table 2 for ping results descriptions.

Table 2: Ping Results

Feature

Description

min/max/avg

Displays the minimum, maximum, or average ping time experienced, respectively. (Multiple pings are actually issued.)

loss %

Displays the percentage of pings that are lost or dropped between each device pair.



Ping Router from Router



The Ping Router from Router function is similar to the Ping Multiple Routers diagnostic described in Ping Multiple Routers. It allows you to check the connectivity between one particular router and several other routers in the network. Select one router from the list. Then in the second router list, select one or more routers, and click Run.



Check Router Connectivity



The Check Router Connectivity function allows you to check the connectivity status between the IP/MPLSView server and a particular device in the network. Select the router from the list, and click Run. The program will ping the device and report whether it is UP or DOWN.



Traceroute



The Traceroute function allows you to trace the route that an IP packet follows from one device to another in the Live network. Select the source and destination routers from the two selection boxes, and click Run. Figure 4 shows an example traceroute output.

Figure 4: Traceroute Output
Traceroute Output

If the traceroute times out, the message No route to host is displayed.

Note

Traceroute parameter settings can be changed in Admin > Diagnostic Settings. These parameters are described in Diagnostic Configuration Settings.