Can the switch limit the rate of DHCP packets on specified interfaces

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Hardware-based rate limiting for DHCP packets can be configured on specified interfaces since V100R006. In the S3700 series, only the S3728 supports this configuration.

Other related questions:
Rate limit for DHCP packets on specified interfaces of S series switch
For S series switches in V100R006 and later versions, only the S3728 in S3700 series switches supports the interface-based rate limit for DHCP packets.

Do S series switches support time-based rate limiting on interfaces
S series switches (except S1700 switches) do not support time-based rate limiting on their interfaces. You can configure traffic policing using ACLs and traffic policies for rate limiting in a specified time range. For a configuration example, see "Example for Configuring Rate Limiting in a Specified Time Range" in Do S series switches support rate limiting based on applications
S series switches do not support rate limiting based on applications.

Do S series switches support rate limiting based on IP addresses
S series switches (except S1700 switches) do not support rate limiting based on IP addresses.

Why is the rate limit for ICMP packets configured on an interface card inconsistent with the actual rate limit
An AR router implements rate limit to Layer 3 unicast packets by converting the number of packets into the number of bytes. ICMP packets are converted based on 84 bytes per packet. For example, if the rate limit configured for ICMP packets is 10, then the actual rate limit is calculated as 84 x 10 = 840 byte/s. If the actual packet length is not equal to 84 bytes, the actual rate limit will deviate from the configured value.

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