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Cisco Bug: CSCvi10750 - Peyto<->Pyke: 25G Cu links in down state in interop scenario using QSFP-4SFP25G-CU3M cable

Last Modified

Jan 13, 2020

Products (1)

  • Cisco Network Convergence System 5500 Series

Known Affected Releases


Description (partial)


Links for 25G interfaces donot come UP between Peyto 25G ports and Pyke 100G(25x4) ports even when AN is enabled at Pyke

This behaviour is observed When any of the 25G ports of Peyto is connected to breakout ports of Pyke (25x4)
This behavior is seen with/without Auto-neg enabled.
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