Second, all switches and routers between the devices must be able to process these packets without fragmenting them (see below). First, devices that will talk to each other need to their MTU set to 9000. Most commonly, jumbo frames means setting the MTU ( maximum transmission unit) to enable a payload of 9000 bytes. When we enable “jumbo frames” we are telling our network devices that we want to send more th an 1500 bytes in each packet. These networks are generally closed and device configuration can be governed. The most common application of jumbo frames is on storage networks such as iSCSI, NFS, and vMotion networks. If we enable jumbo frames we reduce the number of packets sent over the network when sending large amounts of data. Any payload larger than 1500 bytes sent over the network will be split into more than one packet. By default each network packet can carry 1500 bytes of data (also referred to as the packet’s payload). Some network devices allow the standard size of an Ethernet packet to be changed. 4 Things You Should Know About Jumbo Frames Luke Arntz
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