Login
- Table of Contents
-
- H3C S7500 Series Command Manual(Release 3100 Series)-(V1.04)
- 00-1Cover
- 01-CLI Commands
- 02-Login Commands
- 03-Configuration File Management Commands
- 04-VLAN Commands
- 05-Extended VLAN Application Commands
- 06-IP Address-IP Performance-IPX Commands
- 07-GVRP Commands
- 08-QinQ Commands
- 09-Port Basic Configuration Commands
- 10-Link Aggregation Commands
- 11-Port Isolation Commands
- 12-Port Binding Commands
- 13-DLDP Commands
- 14-MAC Address Table Commands
- 15-MSTP Commands
- 16-Routing Protocol Commands
- 17-Multicast Commands
- 18-802.1x Commands
- 19-AAA-RADIUS-HWTACACS-EAD Commands
- 20-Traffic Accounting Commands
- 21-VRRP-HA Commands
- 22-ARP Commands
- 23-DHCP Commands
- 24-ACL Commands
- 25-QoS Commands
- 26-Mirroring Commands
- 27-Cluster Commands
- 28-PoE Commands
- 29-UDP-Helper Commands
- 30-SNMP-RMON Commands
- 31-NTP Commands
- 32-SSH Terminal Service Commands
- 33-File System Management Commands
- 34-FTP and TFTP Commands
- 35-Information Center Commands
- 36-DNS Commands
- 37-System Maintenance and Debugging Commands
- 38-HWPing Commands
- 39-RRPP Commands
- 40-NAT-Netstream-Policy Routing Commands
- 41-Telnet Protection Commands
- 42-Hardware-Dependent Software Configuration Commands
- 43-Appendix
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 13-DLDP Commands | 55 KB |
Chapter 1 DLDP Configuration Commands
1.1 DLDP Configuration Commands
1.1.3 dldp authentication-mode
1.1.6 dldp unidirectional-shutdown
Chapter 1 DLDP Configuration Commands
1.1 DLDP Configuration Commands
1.1.1 display dldp
Syntax
display dldp [ interface-type interface-number ]
View
Any view
Parameters
interface-type: Port type.
interface-number: Port number.
Description
Use the display dldp command to display the DLDP configuration information of the device or the specified port.
Examples
# Display the DLDP configuration information of the device.
dldp interval 10
dldp work-mode enhance
dldp authentication-mode none
dldp unidirectional-shutdown manual
dldp delaydown-timer 1
The port number with DLDP is 2.
interface GigabitEthernet2/0/1
dldp port state : inactive
dldp link state : down
The neighbor number of the port is 0.
interface GigabitEthernet2/0/2
dldp port state : advertisement
dldp link state : up
The neighbor number of the port is 1.
neighbor mac address : 000f-e227-750d
neighbor port index : 98
neighbor state : two way
neighbor aged time : 24
Table 1-1 Description on the fields of the display dldp command
|
Field |
Description |
|
dldp interval |
Interval for sending DLDP advertisement packets |
|
dldp work-mode |
DLDP work mode |
|
dldp authentication-mode |
DLDP authentication mode |
|
dldp unidirectional-shutdown |
DLDP action to be performed on detecting a unidirectional link |
|
dldp delaydown-timer |
Setting of the DelayDown timer |
|
The port number with DLDP |
Number of the DLDP-enabled ports on device |
|
interface GigabitEthernet2/0/1 |
Port type and port number |
|
dldp port state |
DLDP state of a port |
|
dldp link state |
DLDP link state |
|
The neighbor number of the port |
Number of the neighbor ports |
|
neighbor mac address |
MAC address of a neighbor port |
|
neighbor port index |
Neighbor port index |
|
neighbor state |
Neighbor state (two way or unknown) |
|
neighbor aged time |
Neighbor aging time |
1.1.2 dldp
Syntax
dldp { enable | disable }
View
System view, Ethernet port view
Parameters
None
Description
In system view:
Use the dldp enable command to enable DLDP globally on all optical ports of the switch.
Use the dldp disable command to disable DLDP globally on all optical ports of the switch.
In Ethernet port view:
Use the dldp enable command to enable DLDP on the current port.
Use the dldp disable command to disable DLDP on the current port.
The commands apply to both non-optical ports and optical ports.
By default, DLDP is disabled.
& Note:
When you use the dldp enable/dldp disable commands in system view to enable/disable DLDP globally on all optical ports of the switch, these commands are only valid for the existing optical ports on the device, however, they are not valid for those added subsequently.
Examples
# Enable DLDP globally on all optical ports of the switch.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] dldp enable
DLDP is enabled on all fiber ports.
1.1.3 dldp authentication-mode
Syntax
dldp authentication-mode { none | simple simple-password | md5 md5-password }
undo dldp authentication-mode
View
System view
Parameters
none: Performs no authentication with the peer port.
simple: Sets the authentication mode with the peer port to plain text.
simple-password: Password for authentication with the peer port, a plaintext string in the range of 1 character to 16 characters.
md5: Specifies the mode of authentication with the peer port to MD5.
Description
Use the dldp authentication-mode command to set the DLDP authentication mode and password for the ports of the local and peer devices.
Use the undo dldp authentication-mode to cancel the DLDP authentication mode and password for the ports of the local and peer devices.
By default, authentication mode is none, that is, authentication is not performed.
Note that:
When you configure the DLDP authentication mode and authentication password, make sure the same DLDP authentication mode and password are set for the ports connecting the local and peer devices. Otherwise, DLDP authentication fails. DLDP cannot work when DLDP authentication fails.
Related commands: dldp unidirectional-shutdown.
Examples
# Enable DLDP on the ports connecting two devices. Plaintext authentication is performed with the password password1.
l Configure H3C A:
<H3CA> system-view
System View: return to User View with Ctrl+Z.
[H3CA] dldp authentication-mode simple password1
l Configure H3C B:
<H3CB> system-view
System View: return to User View with Ctrl+Z.
[H3CB] dldp authentication-mode simple password1
1.1.4 dldp interval
Syntax
dldp interval integer
undo dldp interval
View
System view
Parameters
Integer: Interval of sending DLDP packets, in the range of 1 seconds to 100 seconds. It is 5 seconds by default.
Description
Use the dldp interval command to set the interval of sending advertisement packets when all the DLDP-enabled ports are in the Advertisement status.
Use the undo dldp interval command to restore the interval to the default value 5 seconds.
By default, the interval of sending advertisement packets is 5 seconds.
Note that:
l The interval you define is applicable to all DLDP-enabled ports.
l The interval must be shorter than one-third of the STP convergence time. If too long an interval is set, an STP loop may occur before DLDP shuts down unidirectional links. On the contrary, if too short an interval is set, network traffic increases, and port bandwidth is reduced. Generally, the STP convergence time is 30 seconds.
l For the dldp interval integer command, make sure that the same interval for transmitting advertisement packets is set on the ports used to connected both devices; otherwise DLDP will not operate properly.
Examples
# Set the interval of sending advertisement packets to 20 seconds for all the DLDP-enabled ports.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] dldp interval 20
1.1.5 dldp reset
Syntax
dldp reset
View
System view, Ethernet port view
Parameters
None
Description
In system view:
Use the dldp reset command to reset the DLDP status of all the ports disabled by DLDP.
In Ethernet port view:
Use the dldp reset command to reset the DLDP status of the current port disabled by DLDP.
After the dldp reset command is executed, the DLDP status of these ports changes from disable to active and DLDP restarts to probe the link status of the fiber cables or copper twisted pairs.
Related commands: dldp, dldp unidirectional-shutdown.
Examples
# Reset the DLDP status of all the ports disabled by DLDP.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] dldp reset
1.1.6 dldp unidirectional-shutdown
Syntax
dldp unidirectional-shutdown { auto | manual }
undo dldp unidirectional-shutdown
View
System view
Parameters
auto: Disables the corresponding port automatically when DLDP detects a unidirectional link.
manual: Prompts the user to disable the corresponding port manually instead of disabling the port automatically when DLDP detects an unidirectional link. It stops the DLDP packet sending/receiving on the port at the same time.
Description
Use the dldp unidirectional-shutdown command to set the DLDP handling mode when a unidirectional link is found.
Use the dldp unidirectional-shutdown command to restore the default setting.
By default, the handling mode of DLDP after unidirectional links are detected is auto.
Related commands: dldp work-mode.
Examples
# Configure DLDP to automatically disable the corresponding port when a unidirectional link is found.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] dldp unidirectional-shutdown auto
1.1.7 dldp work-mode
Syntax
dldp work-mode { enhance | normal }
undo dldp work-mode
View
System view
Parameters
enhance: Configures DLDP to work in enhanced mode. In this mode, DLDP probes actively whether neighbors exist when neighbor tables are aging.
normal: Configures DLDP to work in normal mode. In this mode, DLDP does not probe actively whether neighbors exist when neighbor tables are aging.
Description
Use the dldp work-mode command to set the DLDP operating mode.
Use the undo dldp work-mode command to restore the default DLDP operating mode.
By default, DLDP works in normal mode.
Examples
# Configure DLDP to work in enhanced mode.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] dldp work-mode enhance
1.1.8 dldp delaydown-timer
Syntax
dldp delaydown-timer delaydown-time
undo dldp delaydown-timer
View
System view
Parameters
delaydown-time: Delaydown timer to be set (in seconds). This argument ranges from 1 to 5. By default, the delaydown timer expires after 1 second it is triggered.
Description
Use the dldp delaydown-timer command to set the delaydown timer.
Use the undo dldp delaydown-timer command to restore the default delaydown timer setting.
Examples
# Set the delaydown timer to 2 seconds.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] dldp delaydown-timer 2
