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2. Maximum transmission unit - Wikipedia

   en.wikipedia.org/wiki/Maximum_transmission_unit

   The IP MTU and Ethernet maximum frame size are configured separately. In Ethernet switch configuration, MTU may refer to Ethernet maximum frame size. In Ethernet-based routers, MTU normally refers to the IP MTU. If jumbo frames are allowed in a network, the IP MTU should also be adjusted upwards to take advantage of this.

3. Path MTU Discovery - Wikipedia

   en.wikipedia.org/wiki/Path_MTU_Discovery

   Path MTU Discovery (PMTUD) is a standardized technique in computer networking for determining the maximum transmission unit (MTU) size on the network path between two Internet Protocol (IP) hosts, usually with the goal of avoiding IP fragmentation. PMTUD was originally intended for routers in Internet Protocol Version 4 (IPv4). [1]

4. Metrics (networking) - Wikipedia

   en.wikipedia.org/wiki/Metrics_(networking)

   Router metrics help the router choose the best route among multiple feasible routes to a destination. The route will go in the direction of the gateway with the lowest metric. A router metric is typically based on information such as path length , bandwidth , load , hop count , path cost, delay , maximum transmission unit (MTU), reliability and ...

5. Jumbo frame - Wikipedia

   en.wikipedia.org/wiki/Jumbo_frame

   802.5 Token Ring can support frames with a 4464-byte MTU, FDDI can transport 4352-byte, ATM 9180-byte and 802.11 can transport 7935-byte MTUs. The IEEE 802.3 Ethernet standard originally mandated support for 1500-byte MTU frames, 1518 byte total frame size (1522 byte with the optional IEEE 802.1Q VLAN/QoS tag). The IEEE 802.3as update ...

6. IPv6 packet - Wikipedia

   en.wikipedia.org/wiki/IPv6_packet

   In contrast to IPv4, routers do not fragment IPv6 packets larger than the maximum transmission unit (MTU), it is the sole responsibility of the originating node. A minimum MTU of 1,280 octets is mandated by IPv6, but hosts are "strongly recommended" to use Path MTU Discovery to take advantage of MTUs greater than the minimum.

7. Open Shortest Path First - Wikipedia

   en.wikipedia.org/wiki/Open_Shortest_Path_First

   An area border router is a router that connects one or more areas to the main backbone network. It is considered a member of all areas it is connected to. An ABR keeps multiple instances of the link-state database in memory, one for each area to which that router is connected. Backbone router (BR) A backbone router has an interface to the ...

8. IP fragmentation - Wikipedia

   en.wikipedia.org/wiki/IP_fragmentation

   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.

9. Transmission Control Protocol - Wikipedia

   en.wikipedia.org/wiki/Transmission_Control_Protocol

   The size of the receive window, which specifies the number of window size units [b] that the sender of this segment is currently willing to receive. [c] (See § Flow control and § Window scaling.) Checksum: 16 bits The 16-bit checksum field is used for error-checking of the TCP header, the payload and an IP pseudo-header.