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Brocade firmware upgrade failed to download firmware signature. (0x40) to remote CP

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Applies to

  • Brocade DCX 85XX

Issue

  • Brocade Fabric OS download command fails with the message:

[SULB-1011],113,SLOT 6 CHASSIS,INFO,DCX8510,Firmwaredownload command failed. Failed to download firmware signature..

  • Command firmwaredownloadstatus provides the following failure:

firmwaredownloadstatus:
[1]: Sat Feb 13 20:06:46 2021 Slot 6 (CP0, active): Firmware is being downloaded to standby CP. This step may take up to 30 minutes.
[2]:  Sat Feb 13 20:06:49 2021 Slot 6 (CP0, active): Firmware download failed on standby CP - Failed to download firmware signature. (0x40)

  • Firewall or security system installed between switch and SCP/FTP server closing the TCP stream
  • Path used in the firmwaredownload command points to the firmware.gz file.
  • To check subnet for CP & Chassis use command ipaddrshow

ipaddrshow:
CHASSIS
Ethernet IP Address: XXX.XXX.XXX.49
Ethernet Subnetmask: 255.255.0.0
CP0
Ethernet IP Address: XXX.XXX.XXX.50
Ethernet Subnetmask: 255.255.255.0
Host Name: cp0
Gateway IP Address: none
CP1
Ethernet IP Address: XXX.XXX.XXX.51
Ethernet Subnetmask: 255.255.255.0

 

 

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