HP Brocade BladeSystem 4/12 HP StorageWorks Fabric OS 6.x administrator guide - Page 189
command to disable IPSec and try again., If a GE port has DHCP enabled
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Message Cannot downgrade due to LSAN count is set to 3000, please disable it before proceeding. Probable cause and recommended action If a switch is running 5.3.0 or higher and the LSAN count is at 3000, then you will not be allowed to downgrade to 5.2.0 or earlier. Use the fcrlsanmatrix command to disable the LSAN. Message Cannot downgrade due to LSAN zone binding is enabled. Please disable it before proceeding. Probable cause and recommended action If switch is running 5.3.0 or higher, and if LSAN zone binding is enabled, the user will not be allowed to downgrade to 5.2.0 or earlier. Use the fcrlsanmatrix command to disable the LSAN. Message Cannot downgrade to 5.2.0 or lower due to GE port(s) has MTU size configured between 1261 to 1499 bytes. Please use portcfg command to reconfigure the mtu size and try again. Probable cause and recommended action If a GE port has its MTU size configured between 1261 to 1499 bytes, you will not be allowed to downgrade to 5.2.0 or earlier. Use the portcfg command to reconfigure the MTU size and try again. Message Cannot downgrade to 5.2.0 or lower because ge port(s) has IPSec and Fastwrite enabled. Please use portcfg command to disable Fastwrite and try again. Probable cause and recommended action If a GE port has IPSec and Fastwrite enabled, the user will not be allowed to downgrade to 5.2.0 or earlier. Use the portcfg command to disable IPSec and try again. Message Cannot downgrade to 5.2.0 or lower because GE port(s) has DHCP enabled. Please use portcfg command to disable it and try again. Probable cause and recommended action If a GE port has DHCP enabled, you will not be allowed to downgrade to 5.2.0 or earlier. Use the portcfg command to disable it and try again. Message Cannot downgrade due to presence of port mirror connections. Use portmirror --delete to remove these mirror connections before proceeding. Probable cause and recommended action The firmware download operation was attempting to downgrade a system to Fabric OS 5.1.0 or earlier with Port Mirroring enabled. Port Mirroring is not supported on firmware 5.1.0 or earlier, so the firmware download operation failed. Remove the mirror connections using the portMirror - -delete command. Retry the firmware download operation. Fabric OS 6.x administrator guide 189