52
Neighbor aged time : 11
Interface GigabitEthernet1/0/50
DLDP port state : advertisement
DLDP link state : up
The neighbor number of the port is 1.
Neighbor mac address : 0023-8956-3600
Neighbor port index : 60
Neighbor state : two way
Neighbor aged time : 12
The output shows that both GigabitEthernet 1/0/49 and GigabitEthernet 1/0/50 are in Advertisement
state, which means both links are bidirectional.
# Enable system information monitoring on Device A, and enable the display of log and trap information.
[DeviceA] quit
<DeviceA> terminal monitor
<DeviceA> terminal logging
<DeviceA> terminal trapping
The following log and trap information is displayed on Device A:
<DeviceA>
#Jan 18 18:10:38:481 2010 DeviceA DLDP/1/TrapOfUnidirectional: -Slot=1; Trap
1.3.6.1.4.1.25506.2.43.2.1.1 : DLDP detects a unidirectional link in port 17825792.
%Jan 18 18:10:38:481 2010 DeviceA DLDP/3/DLDP_UNIDIRECTION_MANUAL: -Slot=1; DLDP detects
a unidirectional link on port GigabitEthernet1/0/49. The transceiver has malfunction in
the Tx direction or cross-connected links exist between the local device and its
neighbor. The shutdown mode is MANUAL. The port needs to be shut down by the user.
#Jan 18 18:10:38:618 2010 DeviceA DLDP/1/TrapOfUnidirectional: -Slot=1; Trap
1.3.6.1.4.1.25506.2.43.2.1.1 : DLDP detects a unidirectional link in port 17825793.
%Jan 18 18:10:38:618 2010 DeviceA DLDP/3/DLDP_UNIDIRECTION_MANUAL: -Slot=1; DLDP detects
a unidirectional link on port GigabitEthernet1/0/50. The transceiver has malfunction in
the Tx direction or cross-connected links exist between the local device and its
neighbor. The shutdown mode is MANUAL. The port needs to be shut down by the user.
The output shows that DLDP has detected a unidirectional link on both GigabitEthernet 1/0/49 and
GigabitEthernet 1/0/50, and is asking you to shut down the faulty ports manually.
After you shut down GigabitEthernet 1/0/49 and GigabitEthernet 1/0/50, the following log information
is displayed:
<DeviceA> system-view
[DeviceA] interface gigabitethernet 1/0/49
[DeviceA-GigabitEthernet1/0/49] shutdown
%Jan 18 18:16:12:044 2010 DeviceA IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/49 link status
is DOWN.
[DeviceA-GigabitEthernet1/0/49] quit
[DeviceA] interface gigabitethernet 1/0/50
[DeviceA-GigabitEthernet1/0/50] shutdown
%Jan 18 18:18:03:583 2010 DeviceA IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/50 link status
is DOWN.
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