Ping a device within a Multiprotocol Label Switching (MPLS)
label-switched path (LSP) from a specified Cisco provider-edge (PE)
router in order to troubleshoot the MPLS core network.
In order to perform this procedure, first ensure the following:
- You are in an MPLS VPN network view.
- If you want to automatically log into the Cisco or
Juniper devices, you must first configure login credentials.
- In the network map, select the Cisco PE router from which
you wish perform the LSP ping.
To select multiple devices, press Ctrl.
- Using the right mouse button, click on one of the selected
devices and choose the menu option
- Complete the fields in the Cisco LSP Ping Tool window.
- From
- Specify a Cisco device or devices to LSP ping from. This field accepts a comma-separated list of
IP addresses or hostnames.
- Target FEC and Mask
- Specify the IPv4 forward-equivalency class (FEC) and netmask. The FEC is a classification of a
group of packets. All packets assigned to an FEC are routed in the same way. This tool accepts FECs
based on IP address. Therefore, this field accepts a single IP address and a netmask.
- Automatic Login
- Specify that you have already specified Telnet login credentials to use when running this tool.
This is not selected by default.
- Username
- Specify a username to use for Telnet access to the devices specified in the Query field. If you
have specified multiple devices, then the login credentials that you specify must be valid for all
of these devices.
- Password
- Specify a password to use for Telnet access to the devices specified in the Query field. If you
have specified multiple devices, then the login credentials that you specify must be valid for all
of these devices.
- Passcode
- Specify an optional security authentication measure. Complete this field only if your network
administrator has applied RSA SecurID two-factor user authentication to the devices you wish to log
into. Type the passcode from your RSA SecurID token.
Note: Your passcode changes at
regular 30 second intervals. Ensure that you launch the tool immediately after supplying the
passcode.
- Send: E-Mail To…
- Specify whether the results should be emailed to one or more listed recipients. This option is
not selected by default.
- Recipients
- Specify a comma-separated list of recipients to which the results of the tool should be sent.
This field is only displayed if Send: E-Mail To… is selected.
- Click Start to launch the tool with
the parameters specified.
The results of the ping
operation appear in one or more separate browser windows.