251
Step Command
Remarks
4.
Set the token bucket size for
sending LLDP frames.
lldp max-credit
credit-value
The default setting is 5.
5.
Set the LLDP frame
transmission delay.
lldp timer tx-delay
delay
The default setting is 2 seconds.
6.
Set the number of LLDP frames
sent each time fast LLDP frame
transmission is triggered.
lldp fast-count
count
The default setting is 4.
7.
Set an interval for fast LLDP
frame transmission.
lldp timer fast-interval
interval
The default setting is 1 second.
Setting an encapsulation format for LLDP frames
LLDP frames can be encapsulated in the following formats:
•
Ethernet
II
—With Ethernet II encapsulation configured, an LLDP port sends LLDP frames in Ethernet
II frames.
•
SNAP
—With SNAP encapsulation configured, an LLDP port sends LLDP frames in SNAP frames.
LLDP of earlier versions requires the same encapsulation format on both ends to process LLDP frames. To
communicate stably with a neighboring device running LLDP of earlier versions, the local device must be
configured with the same encapsulation format.
To set the encapsulation format for LLDP frames to SNAP:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2/Layer 3
Ethernet interface view,
management Ethernet
interface view, or Layer
2/Layer 3 aggregate
interface view.
interface
interface-type interface-number
N/A
3.
Set the encapsulation
format for LLDP frames to
SNAP.
•
In Layer 2/Layer 3 Ethernet interface
view or management Ethernet interface
view:
lldp
[
agent
{
nearest-customer
|
nearest-nontpmr
} ]
encapsulation snap
•
In Layer 2/Layer 3 aggregate interface
view:
lldp agent
{
nearest-customer
|
nearest-nontpmr
}
encapsulation snap
By default, Ethernet II
encapsulation format
applies.
Configuring CDP compatibility
When the switch is directly connected to a Cisco device that supports only CDP rather than LLDP, you can
enable CDP compatibility to enable the switch to exchange information with the directly-connected
device.