December 2017
Beginner
598 pages
14h 7m
English
Content preview from Mastering VMware vSphere 6.5
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Maximum Transmission Unit (MTU)
The original IEEE 802.3 specifications defined a valid Ethernet frame size from 64 to 1,518 bytes. Considering that the standard Ethernet header is 18 bytes in length, then the payload for a standard frame ranges in size from 46 to 1,500 bytes. This is the MTU.
However, since the original Ethernet specification was defined, different IEEE standards have been developed that support additional, expanded frame types listed here as follows:
- VLAN tagging (802.1Q): This is with an additional 4 bytes in the Ethernet header.
- Provider Bridge (802.1ad): This is with an additional 8 bytes to the original frame to support service and customer tagging.
- FCoE frames: These have an MTU of 2,500 bytes.
- Multiprotocol Label ...
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