User guide

September 2009
OmniSwitch 6400/6850/6855/9000/9000E------ Release 6.4.2.R01 Page 77 of 79
122496 Changing the combo port hybrid status from preferred-fiber to
preferred-copper may result in improper link status.
Use forced mode (copper or
fiber) on both ends of the link.
106811 When entering the 'show interface slot/port' command the
"SFP/XFP" field output for a port having an SFP plugged in
cannot differentiate between 100Fx and Bidirectional SFP or
between Gigabit and CWDM SFP.
There is no known workaround
at this time.
127687 The port frame size gets reset to the default size (1553) after
"no power ni/power ni" sequence.
Re-configure desired ports to
desired max frame size.
137394 There may be small inconsistencies between DDM values
and actual output power values for some transceivers.
There is no known workaround
at this time.
139638 At bootup products with SFP/XFP plugged in may temporarily
not be able to read SFP/XFP EEPROM. The message "Bad SFP
on port slot/port" will be intermittently displayed on the console.
Once the switch boots, unplug
the SFP/XFP from location
mentioned in the "Bad SFP on
port slot/port" error message and
plug back in. See if the error
message re-appears. If the error
message re-appears then the
SFP/XFP might be locking up
the i2c bus.
129531 The DWDM XFP transceiver requires 60 seconds to become
operational. This is due to the time required for the transceiver to
reach its optimum operating temperature.
There is no known workaround
at this time.
Hot Swap / Redundancy
Feature Exceptions
CMM and Power Redundancy Feature Exceptions for OmniSwitch
• Manual invocation of failover (by user command or Primary pull) should only be done during times
when traffic loads are minimal.
• Hot standby redundancy or failover to a secondary CMM without significant loss of traffic is only
supported if the secondary is fully flash synchronized with the contents of the primary’s flash.
• Hot standby redundancy or failover to a secondary module without significant loss of traffic is only
supported if all the remaining units in the stack are fully flash synchronized with the contents of the
primary’s flash.
• Failover/Redundancy is not supported when the primary and secondary CMMs are not synchronized
(i.e., unsaved configs, different images etc.). In this case, upon failover, all the NIs will reset and might
go to "down" state, and to recover, need to power down the switch and power it back up.
• Primary and Redundant power supplies must be of the same type. For example, having a primary
510W power supply with a redundant 360W power supply is not supported.
Hot Swap Feature Exceptions for OmniSwitch 9000 / 9000E
• Hot swap of NIs needs to be preceded by the removal of all cables connected to the NI.