Default MTU of switch 9300 interface

[Herman2018]

Hi, what is the default MTU of catalyst 9300 switch? software version is 17.03.06 Amsterdam. we have one 9300, all the interface MTU is 9100. Can anyone please help advise ?  thanks in advance. 

[MHM Cisco World]

Giant frame mtu 9100 is optional not defualt in cat9000 series 

MHM

[balaji.bandi]

Information About the MTU

The default maximum transmission unit (MTU) size for payload received in Ethernet frame and sent on all device interfaces is 1500 bytes.

You can change system MTU globally to take effect of all ports for jumbo frames.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-3/configuration_guide/int_hw/b_173_int_and_hw_9300_cg/configuring_system_mtu.html

[Joseph W. Doherty]

As others have described, default should be 1500, as that's the Ethernet standard.

If interfaces have MTU of 9100, optional jumbo frame size (for transmission) has been enabled on the interface.

[Richard Pidcock]

As shown above by @balaji.bandi , I found a similar link just different version....

Restrictions for System MTU

When configuring the system MTU values, follow these guidelines:

• The device does not support the MTU on a per-interface basis.

• If you enter the system mtu bytes command in global configuration mode, the command affects all the switched and routed ports on the switch.

Information About the MTU

The default maximum transmission unit (MTU) size for payload received in Ethernet frame and sent on all device interfaces is 1500 bytes.

Interface and Hardware Components Configuration Guide, Cisco IOS XE Gibraltar 16.11.x (Catalyst 9300 Switches) - Configuring System MTU [Support] - Cisco