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# Fiber Distributed Data Interface (FDDI)
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[ANSI](/ANSI) standardized this link layer technology based on fiber optics (as the name implies).
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This technology is obsoleted by [Ethernet](/Ethernet), but still (rarely) used today.
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It is specified by [various INCITS specifications](http://www.incits.org/list_INCITS.htm) - look for "Fibre Distributed Data Interface" in that list.
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See [Wireshark: Supported Capture Media](http://www.wireshark.org/media.html) page for Wireshark capturing support on various platforms.
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See [the Wikipedia article on FDDI](http://en.wikipedia.org/wiki/Fddi) for further technology details.
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FDDI sends network packets from the sending host to one ([Unicast](/Unicast)) or more ([Multicast](/Multicast)/[Broadcast](/Broadcast)) receiving hosts.
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## History
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XXX - add a brief description of FDDI history
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## Protocol dependencies
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- FDDI is the lowest software layer, so it only depends on hardware.
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## Example traffic
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XXX - Add example traffic here (as plain text or Wireshark screenshot).
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## Wireshark
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The FDDI dissector is party functional; it can dissect the FDDI header, and data packets, but does not, for example, dissect SMT packets.
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## Preference Settings
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(XXX add links to preference settings affecting how FDDI is dissected).
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## Example capture file
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XXX - Add a simple example capture file. Keep it short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.
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## Display Filter
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A complete list of FDDI display filter fields can be found in the [display filter reference for FDDI](http://www.wireshark.org/docs/dfref/f/fddi.html).
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Show only the FDDI-based traffic:
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```
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fddi
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```
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Show only the FDDI-based traffic to and from FDDI MAC address 08:00:08:15:ca:fe:
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```
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fddi.addr==08.00.08.15.ca.fe
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```
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## Capture Filter
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Capture only the FDDI-based traffic to and from FDDI MAC address 08:00:08:15:ca:fe:
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```
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fddi host 08:00:08:15:ca:fe
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```
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## External links
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## Discussion
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---
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Imported from https://wiki.wireshark.org/FiberDistributedDataInterface on 2020-07-31 01:11:48 UTC |
