Refer to the exhibit. The Main1 and Branch1 switches are connected directly over an MPLS pseudo wire and both run UDLD.After router B1 reloads because of a power failure, the pseudo wire is restored. However, the Branch1 switch is unable to reach the Main1 switch. Which two actions can you take to restore connectivity and prevent the problem from recurring? (Choose two.)
ISSUE THE SHUTDOWN AND NO SHUTDOWN COMMANDS OIL BOTH THE BRANCH1 SWITCH'S UPLINK TO THE B1 ROUTER AND THE MAIN1 SWITCH'S UPLINK TO THE M1 ROUTER.
ENABLE UDLD RECOVERY ON BOTH THE MAIN1 AND BRANCH 1 SWITCHES.
CONFIGURE A BACKUP GRE TUNNEL BETWEEN THE MAIN1 AND BIANCH1 SWITCHES.
ENABLE ERRDISABLE RECOVERY ON BOTH THE MAIN1 AND BRANCH1 SWITCHES
CONFIGURE A BACKUP PSEUDO WIRE BETWEEN THE MAIN1 AND BRANCH1 SWITCHES
