Concept of jumbo frames

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The frame is a data packet that contains original data as well as the sender and recipient's address and control information. The data frame whose length exceeds the maximum value allowed by the media, for example, more than 1518-byte Ethernet frame, can be called a jumbo frame.

Other related questions:
Definition of jumbo frame of S series switches
A jumbo frame is an Ethernet frame longer than 1518 bytes or a VLAN frame longer than 1522 bytes. By default, the maximum frame length allowed by interfaces of the S2700EI and S2700SI is 2044 bytes. The maximum frame length allowed by interfaces of the S3700EI, S3700SI, S5700EI, and S5700SI is 1600 bytes. The maximum frame length allowed by interfaces of other S series switches (except the S1700) is 9216 bytes. You can run the jumboframe enable value command to change the maximum frame length allowed by the device. The following is an example: Configure the interface GE0/0/1 to allow frames with the maximum length of 5000 bytes. [HUAWEI] interface gigabitethernet 0/0/1 [HUAWEI-GigabitEthernet0/0/1] jumboframe enable 5000

How to set the length of a Jumbo frame
The procedure for setting the length of a Jumbo frame is described on the right.

Storage models that support jumbo frames
Currently, only S5500T, S5600T, S5800T, S6800T, OceanStor 18500, OceanStor 18800, S3900, S5900, and S6900 support jumbo frames.

Why S5700SI does not support statistics on Jumbo frames
The forwarding chip does not support statistics on Jumbo frames, so the display interface command on the S5700SI does not display statistics on Jumbo frames.

Do AC interfaces allow Jumbo frames to pass through
Ethernet frames longer than 1518 bytes or VLAN frames longer than 1522 bytes are called Jumbo frames. During a high-throughput data exchange such as a file transfer, an Ethernet interface of an AC may receive Jumbo frames. The AC discards Jumbo frames without processing them. When the Ethernet interface is configured to allow Jumbo frames to pass through, the AC processes the received Jumbo frames with the length within the specified range. Run the jumboframe enable [ value ] command in the interface view to configure an interface to allow Jumbo frames to pass through. In the command, value specifies the maximum length of Jumbo frames that are allowed to pass through an Ethernet interface. The value is an integer that ranges from 1536 to 12288, in bytes. Note: Fat APs do not support this command.

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