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Cisco Bug: CSCup44792 - WLC replicates Cat6k diag frames

Last Modified

Nov 27, 2020

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

7.4(110.0) 7.4(121.0) 7.6(120.0)

Description (partial)

When the Wireless LAN controller receives a frame with ethernet type 0x200e (typically diag
traffic seen in inter-chassis communication on Cat6k), the WLC starts replaying this packet in
a loop, saturating the link.

WLC receiving Cat6k diag packet
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  • Status
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