Why is MTP not seeing any traffic?

Document ID : KB000019056
Last Modified Date : 14/02/2018
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This article discusses MTP, traffic and filtering.


Typically, MTP may not be able to see traffic for these reasons:

  1. MTP is not seeing traffic from the switch (via span, tap, aggregator)

  2. MTP hardware filters are not enabled for TIM logical port or are incorrect (including or excluding subnet for example)

  3. MTP logical port, ADA, and switch do not have same VLAN tag on both ends (New with MTP/ADA 10)

  4. CEM Web Filters are excluding traffic

  5. SSL private keys are not decoding traffic

To Resolve:

  1. Work with networking team to check switch connection to MTP

  2. Review MTP hardware filters

  3. Check that VLAN tagging is correct on MTP and switch and ADA

  4. Check Web Server filters

  5. Check Private keys