Configuring Cdp Compatibility; Configuring Lldp Trapping - 3Com S7906E Configuration Manual

Configuring CDP Compatibility

CDP-compatible LLDP operates in one of the follows two modes:
TxRx, where CDP packets can be transmitted and received.
Disable, where CDP packets can neither be transmitted nor be received.
To make CDP-compatible LLDP take effect on certain ports, first enable CDP-compatible LLDP globally
and configure CDP-compatible LLDP to operate in TxRx mode.
Follow these steps to enable LLDP to be compatible with CDP:
To do...
Enter system view
Enable CDP compatibility
globally
Enter Ethernet
interface view
or port group
view
Configure CDP-compatible
LLDP to operate in TxRx mode
As the maximum TTL allowed by CDP is 255 seconds, ensure that the product of the TTL multiplier and
the LLDPDU transmit interval is less than 255 seconds for CDP-compatible LLDP to work properly with
Cisco IP phones.

Configuring LLDP Trapping

LLDP trapping is used to notify the network management system (NMS) of events such as new
neighboring devices detected and link malfunctions.
To prevent excessive LLDP traps from being sent when topology is unstable, you can set a minimum
trap sending interval for LLDP.
Follow these steps to configure LLDP trap:
To do...
Enter system view
Enter Ethernet
interface view
or port group
view
Enable LLDP trap sending
Use the command...
system-view
lldp compliance cdp
Enter
interface interface-type
Ethernet
interface-number
interface view
Enter port port-group manual
group view port-group-name
lldp compliance
admin-status cdp txrx
system-view
Enter Ethernet interface interface-type
interface view interface-number
Enter port group
port-group manual
view port-group-name
lldp notification remote-change
enable
—
Required
Disabled by default.
Required
Use either command.
Required
By default, CDP-compatible LLDP
operates in disable mode.
Use the command...
1-12
Remarks
Remarks
—
Required
Use either command.
Required
Disabled by default