Cisco Bug: CSCuq87071 - shut/no shut on MDS 9148 E i/f connected via DWDM may not bring up port
Last Modified
Sep 09, 2019
Products (1)
- Cisco MDS 9000 Series Multilayer Switches
Known Affected Releases
5.2(1)
Description (partial)
Symptom: MDS 9148 & DS-SFP-FC4G-SW SFP connected at 1 Gbit via Coriant Surpass hiT 7300 DWDM. E port is continually shut and then 10 sec later "no shut" issued. Occasionally, 1 in 20 attempts, a "no shut" will not bring the link up. Conditions: Multiple shut followed by "no shut" will show up this problem if connected to the DWDM equipment. If MDS switches are connected back-to-back, shut/no shut works 100%
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