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By setting the TTL multiplier, you can configure the TTL of locally sent LLDPDUs. The TTL is
expressed by using the following formula:
TTL = Min (65535, (TTL multiplier × LLDP frame transmission in 1))
As the expression shows, the TTL can be up to 65535 seconds. TTLs greater than 65535 will be
rounded down to 65535 seconds.
To set LLDP parameters:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Set the TTL multiplier.
lldp hold-multiplier value
The default setting is 4.
3.
Set the LLDP frame
transmission interval.
lldp timer tx-interval
interval
The default setting is 30
seconds.
4.
Set the token bucket size for
sending LLDP frames.
lldp max-credit
credit-value
The default setting is 5.
5.
Set the number of LLDP
frames sent each time fast
LLDP frame transmission is
triggered.
lldp fast-count count
The default setting is 4.
6.
Set the fast LLDP frame
transmission interval.
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.
Earlier versions of LLDP require the same encapsulation format on both ends to process LLDP
frames. To successfully communicate with a neighboring device running an earlier version of LLDP,
the local device must be set 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, Layer
2/Layer 3 aggregate
interface view, or IRF
physical 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
|
By default, Ethernet II
encapsulation format
applies.