05-DLDP Commands
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Syntax
display dldp [ interface-type interface-number ]
View
Any view
Default Level
1: Monitor level
Parameters
interface-type interface-number: Port type and port number.
Description
Use the display dldp command to display the DLDP configuration of a port.
If you do not provide the interface-type interface-number argument, this command displays the DLDP configuration of all the DLDP-enabled ports.
Examples
# Display the DLDP configuration of all the DLDP-enabled ports.
<Sysname> display dldp
DLDP global status : enable
DLDP interval : 5s
DLDP work-mode : enhance
DLDP authentication-mode : simple, password is 123
DLDP unidirectional-shutdown : auto
DLDP delaydown-timer : 2s
The number of enabled ports is 2.
Interface GigabitEthernet1/0/49
DLDP port state : advertisement
DLDP link state : up
The neighbor number of the port is 1.
Neighbor mac address : 0000-0000-0100
Neighbor port index : 79
Neighbor state : two way
Neighbor aged time : 13
Interface GigabitEthernet1/0/50
DLDP port state : advertisement
DLDP link state : up
The neighbor number of the port is 1.
Neighbor mac address : 0000-0000-1100
Neighbor port index : 81
Neighbor state : two way
Neighbor aged time : 12
# Display the DLDP configuration of GigabitEthernet 1/0/49.
<Sysname> display dldp gigabitethernet 1/0/49
Interface GigabitEthernet1/0/49
DLDP port state : advertisement
DLDP link state : up
The neighbor number of the port is 1.
Neighbor mac address : 0000-0000-0100
Neighbor port index : 79
Neighbor state : two way
Neighbor aged time : 13
Table 1-1 display dldp command output description
|
Field |
Description |
|
DLDP global status |
Global DLDP state (enable or disable) |
|
DLDP interval |
Interval for sending Advertisement packets (in seconds) to maintain neighbor relations |
|
DLDP work-mode |
DLDP mode (enhance or normal) |
|
DLDP authentication-mode |
DLDP authentication mode (none, simple, or md5) |
|
password |
Password for DLDP authentication |
|
DLDP unidirectional-shutdown |
Port shutdown mode (auto or manual) after unidirectional links are detected |
|
DLDP delaydown-timer |
Setting of the DelayDown timer |
|
The number of enabled ports |
Number of the DLDP-enabled ports |
|
Interface |
Index of a DLDP-enabled port |
|
DLDP port state |
DLDP state on a port (initial, inactive, active, advertisement, probe, disable, or delaydown) |
|
DLDP link state |
Port state (up or down) |
|
The neighbor number of the port |
Number of the neighbors of a port |
|
Neighbor mac address |
MAC address of a neighbor |
|
Neighbor port index |
Neighbor port index |
|
Neighbor state |
Neighbor state (unknown, one way, or two way) |
|
Neighbor aged time |
Neighbor aging time |
Syntax
display dldp statistics [ interface-type interface-number ]
View
Any view
Default Level
1: Monitor level
Parameters
interface-type interface-number: Port type and port number.
Description
Use the display dldp statistics command to display the statistics on the DLDP packets passing through a port.
If you do not provide the interface-type interface-number argument, this command displays the statistics on the DLDP packets passing through all the DLDP-enabled ports.
Examples
# Display the statistics on the DLDP packets passing through all the DLDP-enabled ports.
<Sysname> display dldp statistics
Interface GigabitEthernet1/0/49
Packets sent : 6
Packets received : 5
Invalid packets received : 2
Loop packets received : 0
Authentication failed packets received : 0
Valid packets received : 3
Interface GigabitEthernet1/0/50
Packets sent : 7
Packets received : 7
Invalid packets received : 3
Loop packets received : 0
Authentication failed packets received : 0
Valid packets received : 4
# Display the statistics on the DLDP packets passing through GigabitEthernet 1/0/49.
<Sysname> display dldp statistics gigabitethernet 1/0/49
Interface GigabitEthernet1/0/49
Packets sent : 6
Packets received : 5
Invalid packets received : 2
Loop packets received : 0
Authentication failed packets received : 0
Valid packets received : 3
Table 1-2 display dldp statistics command output description
|
Field |
Description |
|
Interface |
Port index |
|
Packets sent |
Total number of DLDP packets sent |
|
Packets received |
Total number of DLDP packets received |
|
Invalid packets received |
Number of the invalid packets received |
|
Loop packets received |
Number of the loopback packets received |
|
Authentication failed packets received |
Number of the received packets that failed to pass the authentication |
|
Valid packets received |
Number of the valid packets received |
Syntax
dldp authentication-mode { md5 md5-password | none | simple simple-password }
undo dldp authentication-mode
View
System view
Default Level
2: System level
Parameters
md5 md5-password: Specifies to perform MD5 authentication and sets the password. The md5-password argument is the password, a string of 1 to 16 characters or a 24-bit string. The former indicates a plain text password and the latter indicates a cipher text password. Note that this argument is case-sensitive.
none: Specifies not to perform authentication.
simple simple-password: Specifies to perform plain text authentication and sets the password. The simple-password argument is the password, a case-sensitive string of 1 to 16 characters.
Description
Use the dldp authentication-mode command to configure DLDP authentication.
Use the undo dldp authentication-mode command to restore the default.
By default, DLDP authentication is not performed.
To enable DLDP to operate properly, make sure the DLDP authentication modes and the passwords configured on the two ends of a link are the same.
Examples
# Configure to perform plain text authentication, and set the password as abc (assuming that Device A and Device B are connected by the DLDP link).
l Configuration on Device A
<DeviceA> system-view
[DeviceA] dldp authentication-mode simple abc
l Configuration on Device B
<DeviceB> system-view
[DeviceB] dldp authentication-mode simple abc
Syntax
dldp delaydown-timer time
undo dldp delaydown-timer
View
System view
Default Level
2: System level
Parameters
Time: Setting of the DelayDown timer, in the range 1 to 5 (in seconds).
Description
Use the dldp delaydown-timer command to set the DelayDown timer.
Use the undo dldp delaydown-timer command to restore the default.
By default, the setting of the DelayDown timer is 1 second.
Note that the DelayDown timer configured using this command applies to all DLDP-enabled ports.
Examples
# Set the DelayDown timer to 2 seconds.
<Sysname> system-view
[Sysname] dldp delaydown-timer 2
Syntax
dldp enable
undo dldp enable
View
System view, Ethernet port view, port group view
Default Level
2: System level
Parameters
None
Description
Use the dldp enable command to enable DLDP.
Use the undo dldp enable command to disable DLDP.
By default, DLDP is disabled both globally and on each port.
Note that:
l When executed in system view, these two commands enables/disables DLDP globally; when executed in Ethernet port view, these two commands enables/disables DLDP on the current port; when executed in port group view, these two commands enables/disables DLDP on all the ports in the port group.
l DLDP can take effect only after you enable it globally and then on a port.
Examples
# Enable DLDP globally, and then enable DLDP on GigabitEthernet 1/0/49.
<Sysname> system-view
[Sysname] dldp enable
[Sysname] interface gigabitethernet 1/0/49
[Sysname-GigabitEthernet1/0/49] dldp enable
# Enable DLDP globally, and then enable DLDP for all the ports in port group 1.
<Sysname> system-view
[Sysname] dldp enable
[Sysname] port-group manual 1
[Sysname-port-group-manual-1] group-member gigabitethernet 1/0/49 gigabitethernet 1/0/50
[Sysname-port-group-manual-1] dldp enable
Syntax
dldp interval time
undo dldp interval
View
System view
Default Level
2: System level
Parameters
time: Interval for sending Advertisement packets, in the range 1 to 100 (in seconds).
Description
Use the dldp interval command to set the interval for sending Advertisement packets.
Use the undo dldp interval command to restore the default.
By default, the interval for sending Advertisement packets is five seconds.
Note that, these two commands apply to all DLDP-enabled ports.
Examples
# Set the interval for sending Advertisement packets to 20 seconds.
<Sysname> system-view
[Sysname] dldp interval 20
Syntax
dldp reset
View
System view, Ethernet port view, port group view
Default Level
2: System level
Parameters
None
Description
Use the dldp reset command to reset DLDP state for ports in the Disable state to enable them to perform unidirectional link detection.
When executed in system view, this command applies to all the ports in the Disable state; when executed in Ethernet port view, this command applies to the current port; when executed in port group view, this command applies to all the ports in the port group in the Disable state.
Related commands: dldp enable, dldp unidirectional-shutdown.
Examples
# Reset DLDP state for all the ports in the Disable state.
<Sysname> system-view
[Sysname] dldp reset
# Reset DLDP state for GigabitEthernet 1/0/49 (assuming that GigabitEthernet 1/0/49 is in the Disable state).
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/49
[Sysname-GigabitEthernet1/0/49] dldp reset
# Reset DLDP state for all the ports in port group 1 in the Disable state.
<Sysname> system-view
[Sysname] port-group manual 1
[Sysname-port-group-manual-1] group-member gigabitethernet 1/0/49 to gigabitethernet 1/0/50
[Sysname-port-group-manual-1] dldp reset
Syntax
dldp unidirectional-shutdown { auto | manual }
undo dldp unidirectional-shutdown
View
System view
Default Level
2: System level
Parameters
auto: Configures the port shutdown mode as auto mode, where, when a unidirectional link is detected, the port involved is shut down by DLDP.
manual: Configures the port shutdown mode as manual mode, where, when a unidirectional link is detected, DLDP generates log and traps to prompts you to shut down the involved port instead of doing so automatically.
Description
Use the dldp unidirectional-shutdown command to set the port shutdown mode.
Use the undo dldp unidirectional-shutdown command to restore the default.
By default, the port shutdown mode is auto mode.
Related commands: dldp work-mode.
Examples
# Set the port shutdown mode to auto mode.
<Sysname> system-view
[Sysname] dldp unidirectional-shutdown auto
Syntax
dldp work-mode { enhance | normal }
undo dldp work-mode
View
System view
Default Level
2: System level
Parameters
enhance: Specifies the enhanced DLDP mode.
normal: Specifies the normal DLDP mode.
Description
Use the dldp work-mode command to set the DLDP mode.
Use the undo dldp work-mode command to restore the default DLDP mode.
By default, a device operates in normal DLDP mode.
Examples
# Configure the device to operate in enhanced DLDP mode.
<Sysname> system-view
[Sysname] dldp work-mode enhance
Syntax
reset dldp statistics [ interface-type interface-number ]
View
User view
Default Level
1: Monitor level
Parameters
interface-type interface-number: Port type and port number.
Description
Use the reset dldp statistics command to clear the statistics on DLDP packets passing through a port.
If you do not provide the interface-type interface-number argument, this command clears the statistics on the DLDP packets passing through all the DLDP-enabled ports.
Examples
# Clear the statistics on the DLDP packets passing through all the DLDP-enabled ports.
<Sysname> reset dldp statistics
