HPE FlexFabric 5700 Series

39
<DeviceA>%Jul 11 17:40:31:089 2014 DeviceA IFNET/3/PHY_UPDOWN:
Ten-GigabitEthernet1/0/1 link status is DOWN.
%Jul 11 17:40:31:091 2014 DeviceA IFNET/5/LINK_UPDOWN: Line protocol on the interface
Ten-GigabitEthernet1/0/1 is DOWN.
%Jul 11 17:40:31:677 2014 DeviceA IFNET/3/PHY_UPDOWN: Ten-GigabitEthernet1/0/2 link
status is DOWN.
%Jul 11 17:40:31:678 2014 DeviceA IFNET/5/LINK_UPDOWN: Line protocol on the interface
Ten-GigabitEthernet1/0/2 is DOWN.
%Jul 11 17:40:38:544 2014 DeviceA IFNET/3/PHY_UPDOWN: Ten-GigabitEthernet1/0/1 link
status is UP.
%Jul 11 17:40:38:836 2014 DeviceA IFNET/3/PHY_UPDOWN: Ten-GigabitEthernet1/0/2 link
status is UP.
The output shows that the port status of both Ten-GigabitEthernet 1/0/1 and
Ten-GigabitEthernet 1/0/2 is down and then up. The link status of both Ten-GigabitEthernet
1/0/1 and Ten-GigabitEthernet 1/0/2 is always down.
# Display the DLDP configuration globally and of all the DLDP-enabled ports.
<DeviceA> display dldp
DLDP global status: Enabled
DLDP advertisement interval: 5s
DLDP authentication-mode: None
DLDP unidirectional-shutdown mode: Auto
DLDP delaydown-timer value: 1s
Number of enabled ports: 2
Interface Ten-GigabitEthernet1/0/1
DLDP port state: Unidirectional
Number of the port’s neighbors: 0 (Maximum number ever detected: 1)
Interface Ten-GigabitEthernet1/0/2
DLDP port state: Unidirectional
Number of the port’s neighbors: 0 (Maximum number ever detected: 1)
The output shows that the DLDP port status of both Ten-GigabitEthernet 1/0/1 and
Ten-GigabitEthernet 1/0/2 is unidirectional, which indicates that DLDP detects unidirectional
links on them and automatically shuts down the two ports.
The unidirectional links are caused by cross-connected fibers. Correct the fiber connections. As
a result, the ports shut down by DLDP automatically recover, and Device A displays the
following log information:
<DeviceA>%Jul 11 17:42:57:709 2014 DeviceA IFNET/3/PHY_UPDOWN:
Ten-GigabitEthernet1/0/1 link status is DOWN.
%Jul 11 17:42:58:603 2014 DeviceA IFNET/3/PHY_UPDOWN: Ten-GigabitEthernet1/0/2 link
status is DOWN.
%Jul 11 17:43:02:342 2014 DeviceA IFNET/3/PHY_UPDOWN: Ten-GigabitEthernet1/0/1 link
status is UP.
%Jul 11 17:43:02:343 2014 DeviceA DLDP/6/DLDP_NEIGHBOR_CONFIRMED: A neighbor was
confirmed on interface Ten-GigabitEthernet1/0/1. The neighbor's system MAC is
0023-8956-3600, and the port index is 1.
%Jul 11 17:43:02:344 2014 DeviceA DLDP/6/DLDP_LINK_BIDIRECTIONAL: DLDP detected a
bidirectional link on interface Ten-GigabitEthernet1/0/1.
%Jul 11 17:43:02:353 2014 DeviceA IFNET/5/LINK_UPDOWN: Line protocol on the interface
Ten-GigabitEthernet1/0/1 is UP.