Configuring Rate Limit Of Arp Packets - Huawei Quidway S3700 Series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Security
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4.4.6 Configuring Rate Limit of ARP Packets

Procedure
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Issue 01 (2011-07-15)
The rate limit duration and the maximum rate of ARP Miss packets are set.
After the rate limit duration and the maximum rate of ARP Miss packets are set, ARP
Miss packets whose rate exceeds the maximum rate in the rate limit duration are
discarded. By default, the maximum rate of ARP Miss packets is 100 and the rate limit
duration of ARP Miss packets is 1s.
5. (Optional) Run:
arp-miss anti-attack rate-limit alarm enable
The alarm function for the ARP Miss packets discarded when the rate of ARP Miss
packets exceeds the maximum rate is enabled.
By default, the alarm function is disabled when the rate of ARP Miss packets exceeds
the maximum rate.
6. (Optional) Run:
arp-miss anti-attack rate-limit alarm threshold threshold
The alarm threshold for the number of ARP Miss packets discarded when the rate of
ARP Miss packets exceeds the maximum rate is set.
By default, the alarm threshold for the number of ARP Miss packets discarded is 100.
Configuring rate limit of ARP packets in the system view
1. Run:
system-view
The system view is displayed.
2. Run:
arp anti-attack rate-limit enable
Rate limit of ARP packets is enabled.
By default, rate limit of ARP packets is disabled globally.
3. Run:
arp anti-attack rate-limit packet-number [ interval-value ]
The rate limit duration and the maximum rate of ARP packets are set.
After the rate limit duration and the maximum rate of ARP packets are set, ARP
packets whose rate exceeds the maximum rate in the rate limit duration are discarded.
By default, the maximum rate of ARP packets is 100 and the rate limit duration of
ARP packets is 1s.
4. (Optional) Run:
arp anti-attack rate-limit alarm enable
The alarm function for the ARP packets discarded when the rate of ARP packets
exceeds the maximum rate is enabled.
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