Click the Exhibit button. All routers shown in the exhibit are configured for OSPF and MPLS on all interfaces. Router P-3 and Router P-5 have two directly connected LDP peers. Traffic from Router…

Click the Exhibit button. All routers shown in the exhibit are configured for OSPF and MPLS on all interfaces. Router P-3 and Router P-5 have two directly connected LDP peers. Traffic from Router PE-1 destined for IP address 15.2.2.2 is label-swapped from P-3 to P-4. Label Switching Router P-3 allocates MPLS label 3001 for FEC 15.1.1.1 /32 and label 3002 for FEC 15.2.2.2 /32. LSR P-4 allocates MPLS label 4001 for FEC 15.1.1.1 /32 and MPLS label 4002 for FEC 15.2.2.2 /32. Router PE-1 pings 15.2.2.2 sourced from interface Loopback 0. Which MPLS label is on this packet on the link between P-3 and P-4?