Setting The Maximum Number Of Padi Packets That The Device Can Receive Per Second; Configuring Pppoe User Blocking - H3C SR8800-F Configuration Manual

Setting the maximum number of PADI packets that the
device can receive per second
When device reboot or version update is performed, the burst of online requests might affect the
device performance. To avoid device performance degradation and make sure the device can
process PADI packets correctly, use this feature to adjust the PADI packet receiving rate limit.
This feature is only supported by CSPEX cards.
To set the maximum number of PADI packets that the device can receive per second:
Step
1. Enter system view.
2. Set the maximum number of
PADI packets that the device
can receive per second.
Table 16 Default settings for the PADI packet receiving rate limit
MPU model
CSR07SRPUD3
Other MPUs

Configuring PPPoE user blocking

About PPPoE user blocking
You can use this feature to prevent multiple PPPoE users from frequently coming online and going
offline or prevent protocol packet attacks. After this feature is enabled, users who performs the
following operations for the specified number of times within a period will be blocked:
•
Come online.
•
Go offline.
•
Send PPPoE connection requests.
Packets from blocked users will be discarded during the blocking period, and will be processed after
the blocking period expires.
Restrictions and guidelines for PPPoE user blocking configuration
•
If you enable this feature in system view, the feature applies to all PPPoE users.
•
If you enable this feature in interface view, the feature applies to PPPoE users accessing the
interface.
•
If you execute this command in both system view and interface view, a user is monitored by
blocking conditions in both views. When the user meets the blocking conditions in any view first,
the user is blocked by the blocking settings in the view.
Command
system-view
In standalone mode:
pppoe-server padi-limit slot
slot-number number
In IRF mode:
pppoe-server padi-limit chassis
chassis-number slot slot-number
number
PADI packet receiving rate limit
500
200
281
Remarks
N/A
The default settings vary by MPU
model, as shown in Table 16.