pppoe-server negotiation times limit

Function

The pppoe-server negotiation times limit command limits the number of times for interface boards to receive IPCP negotiation packets.

The undo pppoe-server negotiation times limit command restores the default configuration.

By default, the number of times for interface boards to receive IPCP negotiation packets is not configured.

This command is supported only on the NetEngine 8000 F1A.

Format

pppoe-server negotiation times limit

undo pppoe-server negotiation times limit

Parameters

None

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
pppoebras	write

Usage Guidelines

Usage Scenario

When PPPoE users are online, if link flapping occurs and packets are replicated, the device may receive a large number of IPCP requests, triggering frequent IPCP renegotiation. This causes high CPU usage and affects device performance.

To prevent this problem, run the pppoe-server negotiation times limit command to limit the number of times for interface boards to receive IPCP negotiation packets. Then the device will calculate IPCP Request, NAK, and Reject packets from each user. If the device receives any type of the IPCP Request, NAK, and Reject packets for ten times from a user, the device considers the packets invalid and discards them, and subsequently terminates the IPCP negotiation with the user.

Precautions

In VS mode, this command is supported only by the admin VS.

Example

# Limit the number of times for interface boards to receive IPCP negotiation packets.

<HUAWEI> system-view
[~HUAWEI] pppoe-server negotiation times limit