How to configure CAR parameters for S series switches

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When the S-series switch (except the S1700) is configured with a speed limit, you need to configure parameters such as cir cir-value and cbs cbs-value, where cir cir-value is the guaranteed rate of information, that is, the average rate that can be guaranteed. Cbs cbs-value means Commit burst size, that is, instantly through the promised burst traffic. For example, if you want to configure a speed limit of 4 Mbit / s, configure cir-value = 4 * 1024 kbit / s = 4096 kbit / s. Cbs-value is configured to be 100-200 times the cir-value. If the user does not configure cbs-value, the device will automatically specify it as the default.

Other related questions:
Netbios parameter settings on S series switch
When S series switches (except S1700 switches) function as DHCP servers, they can deliver NetBIOS service parameters to clients through DHCP. The configuration process is as follows: - Interface address pool: [HUAWEI] interface vlanif 10 [HUAWEI-Vlanif10] ip address 10.10.10.1 24 [HUAWEI-Vlanif10] dhcp select interface [HUAWEI-Vlanif10] dhcp server nbns-list 10.10.1.1 //Configure the NetBIOS server address. [HUAWEI-Vlanif10] dhcp server netbios-type p-node //Configure the NetBIOS node type. - Global address pool: [HUAWEI] ip pool pool1 [HUAWEI-ip-pool-pool1] nbns-list 10.10.1.1 //Configure the NetBIOS server address. [HUAWEI-ip-pool-pool1] netbios-type p-node //Configure the NetBIOS node type. - Using a DHCP Option template: [HUAWEI] dhcp option template template1 [HUAWEI-dhcp-option-template-template1] nbns-list 10.10.1.1 //Configure the NetBIOS server address. [HUAWEI-dhcp-option-template-template1] netbios-type p-node //Configure the NetBIOS node type.

Units of CAR parameters
The CIR and PIR are expressed in kbit/s, and the CBS and PBS are expressed in bytes.

Hardware parameters of S series switches
For the hardware description of the S5700, see S5700 Hardware Description. For the hardware description of the S6700, see S6700 Hardware Description. For the hardware description of the S600, see S600 Hardware Description. For the hardware description of the S9300 and S9300E, see S9300&S9300E Hardware Description. For the hardware description of the S7700, see S7700 Hardware Description. For the hardware description of the S9700, see S9700 Hardware Description. For the hardware description of the S12700, see S12700 Hardware Description.

How to enable the timestamp in logs for S series switches
For S series switches (except the S1700), logs, traps, and debug messages contain a timestamp by default to record the time when the message is generated. If messages do not contain a timestamp, run the display this command in the system view to check whether the following commands are configured and the timestamp function is disabled: - info-center timestamp log none - info-center timestamp trap none - info-center timestamp debugging none If the timestamp function is disabled, run the undo info-center timestamp command to restore default settings.

PoE power module of an S series switch
Configuration and power of PoE power modules on S series switches are as follows: The fixed series switches that have PWR or PWH in their names support PoE. 1. You can use Hardware Query Tool to query the configuration and power of PoE power modules on S series switches. 2. Among modular switches (S7700, S9700, S9300, and S12700), only the S7700 and S9300 support the PoE function. If a switch is running V200R006 or a later version, it allows 800 W AC, 2200 W AC, and 2200 W DC power modules in PoE power slots. If the input voltage is 220 V AC, the PoE power is 800 W or 2200 W. If the input voltage is 110 V AC, the PoE power is 400 W or 1100 W (the S7712 and S9312 do not support 110 V AC). Only ES0D0G48VA00 cards of the S7700 and LE0DG48VEA00 cards of the S9300 support the PoE function. Dual power modules with the same power can be installed to provide power for PDs in load balancing mode. The total power is the sum of two power modules. The number of PoE interfaces supported by a switch is the result of dividing the available PoE power by 15.4 W (802.3af), 30 W (802.3at), or 60 W (802.3bt). Generally, a 250 W power module supports eight interfaces of 15.4 W. A 500 W power module supports 24 interfaces of 15.4 W and 12 interfaces of 30 W. For details, see Tell You About PoE.

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