Refer to the partial Cisco IOS XR configurations exhibits for Router 1 and Router 2.
RP/0/RP0/CPU0:Router1#show running-config mpls ldp
mpls ldp
router-id 33.33.33.33
log
adjacency
!
interface GigabitEthernet0/2/0/6
!
RP/0/RP1/CPU0:Router2#show running-config mpls ldp
mpls ldp
router-id 10.12.0.3
log
neighbor
!
interface GigabitEthernet0/0/2/2
!
RP/0/RP0/CPU0:Router1#show running-config router ospf
router ospf test
area 0
interface Loopback7
passive enable
!
RP/0/RP1/CPU0:Router2#show running-config router ospf
router ospf test
area 0
interface Loopback0
passive enable
!
interface GigabitEthernet0/0/2/2
!
There are two routers that are connected back to back over the Gigabit Ethernet link. If the "show mpls ldp neighbor" command output on Router 1 does not show LDP peering with Router 2, what could be the possible root cause of the LDP peering problem?
A.
missing interface under OSPF IGP configuration
B.
hello timers mismatch on Router 1 and Router 2
C.
password for LDP session mismatch on Router 1 and Router 2