Enabling Dldp; Setting Dldp Mode - 3Com 4500G Family Configuration Manual

For DLDP to work properly, enable DLDP on both sides and make sure these settings are
consistent: the interval for sending Advertisement packets, DLDP authentication mode, and
password.
DLDP does not process any link aggregation control protocol (LACP) events. The links in an
aggregation are treated as individual links in DLDP.
For DLDP to operate properly, make sure the DLDP version running on devices on the two sides
are the same.

Enabling DLDP

To properly configure DLDP on the device, you need to first enable DLDP globally, and then enable it on
each port.
Follow these steps to enable DLDP:
To do...
Enter system view
Enable DLDP globally
Enter
Enter
Ethernet port
Ethernet
view
port view
or port
Enter port
group
group view
view
Enable DLDP
DLDP takes effect only on Ethernet interfaces (optical or copper).
DLDP can detect unidirectional links only after all physical links are connected. Therefore, before
enabling DLDP, make sure that optical fibers or copper twisted pairs are connected.

Setting DLDP Mode

There are two DLDP modes:
Normal mode: In this mode, DLDP does not actively detect neighbors when the corresponding
neighbor entries age out. The system can identify only one type of unidirectional links:
cross-connected fibers.
Use the command...
system-view
dldp enable
interface interface-type
interface-number
port-group manual
port-group-name
dldp enable
1-9
Remarks
—
Required
Globally disabled by default
Either of the two is required.
Configurations made in Ethernet port
view apply to the current port only;
configurations performed in port group
view apply to all the ports in the port
group.
Required
Disabled on a port by default