Configuring Mac Address Learning For Dcn; About Mac Address Learning For Dcn; Mac Address Learning For Dcn Tasks At A Glance - H3C S7500X Series Configuration Manual

To configure LLDP trapping and LLDP-MED trapping:
Step
1. Enter system view.
2. Enter Layer 2/Layer 3
Ethernet interface view,
management Ethernet
interface view, Layer
2/Layer 3 aggregate
interface view, or IRF
physical interface view.
3. Enable LLDP trapping.
4. Enable LLDP-MED
trapping (in Layer 2/Layer
3 Ethernet interface view
or management Ethernet
interface view).
5. Return to system view.
6. (Optional.) Set the LLDP
trap transmission interval.

Configuring MAC address learning for DCN

About MAC address learning for DCN

For the data communication network (DCN) to implement operation, administration, and
maintenance on network elements (NEs), you must configure the NEs to learn their neighbors' MAC
addresses through LLDP.
An NE learns the MAC address of its neighbor through the ARP or ND entry generated based on the
management address TLV in LLDP frames received from the neighbor. For more information about
DCN, see Layer 3—IP Routing Configuration Guide.

MAC address learning for DCN tasks at a glance

Configuring MAC address learning for DCN on a Layer 2 Ethernet interface
1. Setting the source MAC address of LLDP frames
2. Enabling the device to generate ARP or ND entries for received management address LLDP
TLVs
Command
system-view
interface interface-type interface-number
•
In Layer 2/Layer 3 Ethernet interface
view or management Ethernet
interface view:
lldp [ agent { nearest-customer |
nearest-nontpmr } ] notification
remote-change enable
•
In Layer 2/Layer 3 aggregate interface
view:
lldp agent { nearest-customer |
nearest-nontpmr } notification
remote-change enable
•
In IRF physical interface view:
lldp notification remote-change
enable
lldp notification med-topology-change
enable
quit
lldp timer notification-interval interval
18
Remarks
N/A
N/A
By default, LLDP trapping
is disabled.
By default, LLDP-MED
trapping is disabled.
N/A
The default setting is 30
seconds.