Definition of jumbo frame of S series switches

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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

Other related questions:
Concept of jumbo frames
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.

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.

Definition of ABR in OSPF on S series switches
Question: What is the definition of ABR? Is a device with more than two areas configured an ABR? Answer: According to RFC 2328, an OSPF backbone area contains the ABRs of all areas. That is, an ABR must belong to a backbone area. If Area 2 and Area 3 are configured on a device with no interface in a backbone area, the device is not an ABR. If two or more areas are configured on an S series switch supporting OSPF and one of these areas is a backbone area, the switch is an ABR. Not all these areas must have interfaces in the Up state.

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.

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