Priority-Flow-Control No-Drop Dot1P (Ethernet Interface View) - H3C S6550X-HI Series Command Reference Manual

continuous value range. Different values or value ranges are separated with commas (,). You can
configure up to 16 characters for this argument.
outpps pps-value
range of 1 to 159783010.
Usage guidelines
You can configure the early warning threshold for incoming or outgoing PFC packets of an interface
as needed. The early warning threshold notifies a situation where the PFC packet transmission rate
is still within a normal range but needs attention.
When the rate of PFC packets that an interface sends or receives reaches the early warning
threshold, the system generates traps and logs to notify the user. According to the traps and logs, the
user can discover some exceptions in the network, for example:
•
The NIC of the peer device fails and continuously sends PFC packets at a high speed. In this
case, you can set the early warning threshold for incoming PFC packets.
•
The device fails and continuously sends PFC frames. In this case, you can set the early warning
threshold for outgoing PFC packets.
To monitor bidirectional PFC packets, you can set the early warning thresholds for incoming packets
and outgoing packets separately.
The number of PFC pause frames that an interface sends is counted and the early warning threshold
configuration takes effect only when PFC is enabled.
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Set the early warning threshold to 50 pps for outgoing PFC packets with 802.1p priority value 1 on
Twenty-FiveGigE 1/0/1.
<Sysname> system-view
[Sysname] interface twenty-fivegige 1/0/1
[Sysname-Twenty-FiveGigE1/0/1] priority-flow-control early-warning dot1p 1 outpps 50

priority-flow-control no-drop dot1p (Ethernet interface view)

Use
priority-flow-control no-drop dot1p
for 802.1p priorities on an Ethernet interface.
Use
undo priority-flow-control no-drop dot1p
an Ethernet interface.
Syntax
priority-flow-control
{ threshold-value | ratio threshold-ratio } [ headroom headroom-value |
pause-threshold-offset offset-value | reserved-buffer reserved-value ]
* ]
undo priority-flow-control no-drop dot1p [ dot1p dot1p-list ]
Default
PFC is disabled for all 802.1p priorities on an Ethernet interface.
Views
Ethernet interface view
Predefined user roles
network-admin
: Specifies the number of PFC frames that an interface can send in pps, in the
no-drop
to enable PFC and configure PFC thresholds
to disable PFC for 802.1p priorities on
dot1p dot1p-list
17
[ pause-threshold