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Cisco Bug: CSCvs49208 - BGP - peer with md5 authentication fails after upgrade from i7(4) to 9.3(1)

Last Modified

Jul 13, 2020

Products (59)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 3636C-R Switch
  • Cisco Nexus 92348GC-X Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 92304QC Switch
  • Cisco Nexus 31108TC-V Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 9396PX Switch
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Known Affected Releases


Description (partial)

After upgrade from 7.0(3)I7(4) or similar to 9.3(1) or later, BGP peers using md5 authentication may fail to come up due to md5 hash fail for the peer

[31368.137253] TCP: MD5 Hash failed for (, 27453)->(, 179)

The neighbor password must have been configured with quotes around the ascii text

switch(config-router-neighbor)# password "text"
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