Brocade Troubleshooting and Diagnostics Guide v6.1.0 (53-1000853-01, June 2008)

Fabric OS Troubleshooting and Diagnostics Guide 53
53-1000853-01
Considerations for downgrading firmware
5
Message Cannot downgrade to v5.3.0 or earlier because QoS is enabled.
Probable cause and recommended action
QoS is enabled on the local switch. Disable QoS on all the ports before downgrading.
Use the portCfg qos [Slot/]Port[-Range] –disable command to disable QoS.
Message Cannot downgrade to v5.3.0 or earlier because FCIP tunnel(s) have VC QoS mapping enabled.
Probable cause and recommended action
You cannot downgrade to v5.3.x or earlier due to the FCIP tunnels having VC QoS map configured.
Use the portCfg command to delete it.
Message An SNMP trap port is set to non-default, you will not be allowed to downgrade to below v6.0.0.
Probable cause and recommended action
The SNMP trap port was set to non-default. Remove the SNMP trap port setting before
downgrading.
Message Cannot downgrade to v5.3.0 or earlier because FICON is configured on the switch.
Probable cause and recommended action
You cannot downgrade to 5.3.0 or earlier due to FICON is configured.
Use the portCfg command to remove it.
Message Cannot downgrade to v5.3.0 or earlier because FTRACE is configured on the switch.
Probable cause and recommended action
You cannot downgrade to 5.3.0 or earlier due to FTRACE is configured.
Use the portCfg command to remove it.
Message Cannot downgrade to v5.3.0 or earlier because one or more EX/VEX ports are online on the
FR4-18i.
Probable cause and recommended action
You cannot downgrade to v5.3.x or earlier due to one or more EX_ or VEX_Ports are online.
LE Specify LE mode is used for E_Ports for distances beyond 5 Km and up to 10 Km. A
total of 5, 10, or 20 full-size frame buffers are reserved for port speeds of 1 Gbps, 2
Gbps, or 4 Gbps, respectively. LE does not require an Extended Fabrics license.
LD Specify LD for automatic long-distance configuration. The buffer credits for the given
E_Port are automatically configured, based on the actual link distance. Up to a total of
250 full-size frame buffers are reserved, depending upon the distance measured
during E_Port initialization. If the desired distance is provided, it is used as the upper
limit to the measured distance. For Bloom1-based systems, the number of frame
buffers is limited to 63.
LS Specify LS mode to configure a long-distance link with a fixed buffer allocation. Up to a
total of 250 full-size frame buffers are reserved for data traffic, depending on the
desired distance value provided with the portCfgLongDistance command. For
Bloom1-based systems, the number of frame buffers is limited to 63.