Setting the Forwarding Class of the Ping Packets
When you execute the ping mpls command, the ping
packets forwarded to the destination include MPLS labels. It is possible
to set the value of the forwarding class for these ping packets by
using the exp option with the ping
mpls command. For example, to set the forwarding class to 5
when pinging a Layer 3 VPN, issue the following command:
ping mpls l3vpn westcoast source 192.0.2.0 prefix 192.0.2.1 exp 5 count 20 detail
This command would makes the router attempt to ping the Layer 3
VPN westcoast using ping packets with an EXP forwarding
class of 5. The default forwarding class used for the ping
mpls command packets is 7.