Versions of NTP supported by S series switches

4

S series switches support NTPv1, NTPv2, NTPv3, and NTPv4. NTPv4 applies to both IPv4 and IPv6 networks.
The NTP version does not need to be configured on the NTP server and the packet version depends on that of packets sent by a client:
If a client sends a packet in version 3, the server replies with a packet in version 3.
If a client sends a packet in version 4, the server replies with a packet in version 4.

Other related questions:
Configure NTP on S series switches
S series switches (except S1700 switches) use NTP to synchronize clocks in the following modes: unicast NTP server/client, peer, broadcast, multicast, and manycast. The following is an example of synchronizing clock of Switch B with that of Switch A in the unicast NTP server/client mode. # Set the local clock of Switch A as the NTP master clock, and set the clock stratum to 2. [SwitchA] ntp-service refclock-master 2 # On Switch B, specify Switch A as its NTP server. [SwitchB] ntp-service unicast-server 10.0.0.1

Since which version do S series switches support the command to disable the NTP service function
You can run the ntp-service disable command on an S series switch (except the S1700) in V200R001 or a later version to disable the NTP service function.

In which versions is SNMP for S series switches available
SNMP for S series switches is available in v1, v2c, and v3.

Can an S series switch function as the NTP server
The following is an example of configuring the NTP server function in broadcast mode. [HUAWEI] ntp-service refclock-master 3 //Configure the local clock as the NTP master clock. [HUAWEI] undo ntp-service server disable //Enable the IPv4 NTP server function. [HUAWEI] interface vlanif 100 [HUAWEI-Vlanif100] ip address 10.1.1.1 24 //Configure an IP address for the server. [HUAWEI-Vlanif100] ntp-service broadcast-server //Configure the local switch as the NTP broadcast server.

Whether an S series switch supports VRRP
S600-E series switches do not support VRRP. The following lists S series switch product support for VRRP excluding S1700: - S1720: Not supported by S1720GFR; supported by S1720GW-E and S1720GWR-E - S2700: Not supported. - S3700: Not supported by SI series; supported by EI and HI series - S5700: Not supported by SI series; supported by S5720-LI and S5720S-LI, but not supported by other LI series; supported by EI and HI series - S6700: Supported - S7700: Supported - S9700: Supported - S9300: Supported - S12700: Supported

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