# TLV decoding in Logstash?

**URL:** <https://discuss.elastic.co/t/tlv-decoding-in-logstash/46414>\
**Category:** Logstash\
**Created:** [April 5, 2016, 3:01pm UTC](https://discuss.elastic.co/t/tlv-decoding-in-logstash/46414 "2016-04-05T15:01:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![paulkeogh](https://avatars.discourse-cdn.com/v4/letter/p/8dc957/32.png) [@paulkeogh](https://discuss.elastic.co/u/paulkeogh)\
**Post date:** [April 5, 2016, 3:01pm UTC](https://discuss.elastic.co/t/tlv-decoding-in-logstash/46414/1 "2016-04-05T15:01:11Z")

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Hi,

I have an incoming data field that is TLV encoded as an ASCII Hex string, Is there an existing logstash filter or codec that I can use to unwrap this or am I looking at developing a custom filter ?

Thanks,

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**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [April 5, 2016, 5:15pm UTC](https://discuss.elastic.co/t/tlv-decoding-in-logstash/46414/2 "2016-04-05T17:15:48Z")

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There's no stock plugin for this. Perhaps a codec would be more suitable than a filter?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 5:03am UTC](https://discuss.elastic.co/t/tlv-decoding-in-logstash/46414/3 "2017-07-06T05:03:48Z")

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Closed on July 6, 2017, 5:03am UTC