Number of secondary IP addresses supported by S series switches

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For S series switches (except the S1700):
In V100R006 and later versions, each interface of an S series fixed switch supports up to eight secondary IP addresses.
In V100R003 and later versions, each interface of an S series modular switch supports up to 255 secondary IP addresses.

Other related questions:
Do S series switches support allocation of IP addresses based on secondary IP addresses
All switch models of S series switches excluding the S1700 allocate IP addresses based on the primary IP address regardless of whether the interface or global address pool is used. They do not support allocation of IP addresses based on secondary IP addresses. That is, users cannot obtain IP addresses on the same network segment as the secondary IP address.

The number of slave addresses supported by the S series switches
For S series switches (except S1700): S-Fixed switch in V100R006 and later versions, each interface supports 8 slave IP addresses; S-chassis switches in V100R003 and later versions, each interface supports 255 slave IP addresses.

Configure the primary and secondary IP addresses for a CE series switch
Configure the primary and secondary IP addresses for a CE series switch as follows: 1. Run the ip address ip-address { mask | mask-length } command in the interface view to configure the primary IP address for an interface. 2. Run the ip address ip-address { mask | mask-length } sub command in the interface view to configure the secondary IP address for an interface.

The situation of S series switch regarding to support the configuration of ip address
S series switches (except S1700) Each three-layer interface can be configured with multiple IP addresses, one of which is the primary IP address, the rest is slave IP address, S series chassis switch each interface supports 255 slave address, S Series fixed switches Each interface supports eight slave addresses.

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