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In packet-switched computer networks, a jumbogram (portmanteau of jumbo and datagram) is an internet-layer packet exceeding the standard maximum transmission unit (MTU) of the underlying network technology. In contrast, large packets for link-layer technologies are referred to as jumbo frames.
The payload of an IPv6 packet is typically a datagram or segment of the higher-level transport layer protocol, but may be data for an internet layer (e.g., ICMPv6) or link layer (e.g., OSPF) instead. IPv6 packets are typically transmitted over the link layer (i.e., over Ethernet or Wi-Fi), which encapsulates each packet in a frame.
An IPv6 node can optionally handle packets over this limit, referred to as jumbograms, which can be as large as 4,294,967,295 (2 32 −1) octets. The use of jumbograms may improve performance over high-MTU links. The use of jumbograms is indicated by the Jumbo Payload Option extension header. [33]
Jumbo frames have payloads greater than 1500 bytes. In computer networking, jumbo frames are Ethernet frames with more than 1500 bytes of payload, the limit set by the IEEE 802.3 standard. [1] The payload limit for jumbo frames is variable: while 9000 bytes is the most commonly used limit, smaller and larger limits exist.
IPv6 support in the Linux kernel was originally developed by Pedro Roque and integrated into mainline at the end of 1996, which was one of the earliest implementations of an IPv6 stack in the world. [13] 6bone (an IPv6 virtual network for testing) is started. 1997: By the end of 1997 IBM's AIX 4.3 is the first commercial platform supporting ...
Non-standard jumbo frames allow for larger payloads on networks built to support them. ... IPv6 can also be transmitted over Ethernet using IEEE 802.2 LLC SAP/SNAP ...
Ethernet II MTU (1500) less PPPoE header (8) and IPv6 header (40) PPPoE jumbo frames 1493–9190 or more [13] Ethernet Jumbo Frame MTU (1501–9198) less PPPoE header (8) IEEE 802.11 Wi-Fi (WLAN) 2304 [14] The maximum MSDU size is 2304 before encryption. WEP will add 8 bytes, WPA-TKIP 20 bytes, and WPA2-CCMP 16 bytes.
An example of the fragmentation of a protocol data unit in a given layer into smaller fragments. IP fragmentation is an Internet Protocol (IP) process that breaks packets into smaller pieces (fragments), so that the resulting pieces can pass through a link with a smaller maximum transmission unit (MTU) than the original packet size.