Configuring Pfc Parameters; Configuring Lldp Trapping And Lldp-Med Trapping - H3C S7500E-X Configuration Manual

Configuring PFC parameters

To prevent packets with an 802.1p priority value from being dropped, enable PFC for the 802.1p
priority value. This feature reduces the sending rate of packets carrying this priority when network
congestion occurs.
The device uses PFC parameters to negotiate with the server adapter and to enable PFC for the
specified 802.1p priorities on the server adapter.
To configure PFC parameters:
Step
Enter system view.
1.
Enter Layer 2 Ethernet
2.
interface view.
Enable PFC in auto mode on
3.
the Ethernet interface.
Enable PFC for the specified
4.
802.1p priorities.
For more information about the priority-flow-control and priority-flow-control no-drop dot1p
commands, see Interface Command Reference.
Configuring LLDP trapping and LLDP-MED
trapping
LLDP trapping or LLDP-MED trapping notifies the network management system of events such as
newly detected neighboring devices and link failures.
To prevent excessive LLDP traps from being sent when the topology is unstable, set a trap
transmission interval for LLDP.
To configure LLDP trapping and LLDP-MED trapping:
Step
Enter system view.
1.
Enter Layer 2/Layer 3
2.
Ethernet interface view,
management Ethernet
interface view, or Layer
2/Layer 3 aggregate
interface view.
Enable LLDP trapping.
3.
Command
system-view
interface interface-type
interface-number
priority-flow-control auto
priority-flow-control no-drop
dot1p dot1p-list
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
238
Remarks
N/A
N/A
By default, PFC is disabled.
To advertise the PFC data, you
must enable PFC in auto mode.
By default, PFC is disabled for all
802.1p priorities.
Remarks
N/A
N/A
By default, LLDP trapping
is disabled.