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--- networking:mtu [2022/06/29 11:41] – aperez
+++ networking:mtu [2022/07/01 11:36] (current) – aperez
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 {{ :networking:mtu-image-9.png?300 |}}
-A maximum transmission unit (MTU) is the largest packet or frame size, specified in octets (eight-bit bytes) that can be sent in a packet- or frame-based network such as the internet. The internet’s transmission control protocol (TCP) uses the MTU to determine the maximum size of each packet in any transmission. MTU is usually associated with the Ethernet protocol, where a 1500-byte packet is the largest allowed in it (and hence over most of the internet).
+**A maximum transmission unit (MTU)** is the largest packet or frame size, specified in octets (eight-bit bytes) that can be sent in a packet- or frame-based network such as the internet. The internet’s transmission control protocol (TCP) uses the MTU to determine the maximum size of each packet in any transmission. MTU is usually associated with the Ethernet protocol, where a 1500-byte packet is the largest allowed in it (and hence over most of the internet).
 One of the most common problems related to MTU is that sometimes higher-level protocols may create packets larger than a particular link supports, and you’ll need to make adjustments to make it work.
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 Before we look at TCP MSS, it helps to understand the build of the  “unit” that’s being sent over the internet.
+{{ :networking:set-default-mtu.png?600 |}}
+{{ :networking:set-default-mtu -2.png?600 |}}
+{{ :networking:set-default-mtu -3.png?600 |}}
+{{ :networking:set-default-mtu -4.png?600 |}}
+{{ :networking:set-default-mtu -5.png?600 |}}
+**Command to test jumbo frame packets (9000 Bytes) in an Esxi 7.0**
+{{ :networking:set-default-mtu-vmware-7.png?600 |}}
 [[info.support.huawei.com/info-finder/encyclopedia/en/MTU.html|What Is Maximum Transmission Unit (MTU)?]]