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Cisco Bug: CSCuj33175 - Link does not come up across Tellabs DS-X9232-256K9 and DS-X9248-256K9

Last Modified

Jan 31, 2017

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

5.2(1) 5.2(8)

Description (partial)

Symptom:ISL connecting two MDS generation 4 ports will not automatically recover after the link fails or it is shutdown/no shutdown. The ISL is going through a DWDM Tellabs 7100 Optical Transport System. The ISL shows the following:

fcx/y is down (Link failure or not-connected)

Conditions:Occurs on DS-X9232-256K9 and DS-X9248-256K9 only.
The port is in a fixed speed configuration such as <CmdBold>switchport speed 4000<noCmdBold>
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