Owners Manual

• In the S6000 platform, you can use the QSA on any of the ports. However, the existing maximum fan-
out restrictions apply to the ports.
• The QSA module does not have a designated EEPROM. To recognize a QSA, Dell Networking OS
reads the EEPROM corresponding to a SFP+ or SFP module that is plugged into QSA. The access
location of this EEPROM is different from the EEPROM location of the QSFP+ module.
• The diagnostics application is capable of detecting insertion or removal of both the QSA as well as the
SFP+ or SFP optical cables plugged into the QSA. In addition, the diagnostic application is also
capable of reading the DDS and Vendor information from the EEPROM corresponding to SFP+ or SFP
optical cables. As a result, no separate detection of QSA is required.
Support for LM4 Optics
The newly supported LM4 optics are similar in behavior to the LR4 optics that are already supported.
However, in the output of show inventory media command, an LM4 optical module is denoted as
40G-LM4. Barring this exception, the functionality and behavior of LM4 optics is similar to LR4 optics.
Example Scenarios
Consider the following scenarios:
• QSFP port 0 is connected to a QSA with SFP+ optical cables plugged in.
• QSFP port 4 is connected to a QSA with SFP optical cables plugged in.
• QSFP port 8 in fanned-out mode is plugged in with QSFP optical cables.
• QSFP port 12 in 40 G mode is plugged in with QSFP optical cables.
For these configurations, the following examples show the command output that the show interfaces
tengigbitethernet transceiver, show interfaces tengigbitethernet, and show
inventory media
commands displays:
Dell#show interfaces tengigabitethernet 0/0 transceiver
SFP+ 0 Serial ID Base Fields
SFP+ 0 Id = 0x0d
SFP+ 0 Ext Id = 0x00
SFP+ 0 Connector = 0x23
SFP+ 0 Transceiver Code = 0x08 0x00 0x00 0x00 0x00 0x00 0x00 0x00
SFP+ 0 Encoding = 0x00
………………
………………
SFP+ 0 Diagnostic Information
===================================
SFP+ 0 Rx Power measurement type = OMA
===================================
SFP+ 0 Temp High Alarm threshold = 0.000C
SFP+ 0 Voltage High Alarm threshold = 0.000V
SFP+ 0 Bias High Alarm threshold = 0.000mA
NOTE: In the following show interfaces tengigbitethernet commands, the ports 1,2, and 3
are inactive and no physical SFP or SFP+ connection actually exists on these ports. However, Dell
Networking OS still perceives these ports as valid and the output shows that pluggable media
(optical cables) is inserted into these ports. This is a software limitation for this release.
Dell#show interfaces tengigabitethernet 0/1 transceiver
SFP+ 0 Serial ID Base Fields
SFP+ 0 Id = 0x0d
SFP+ 0 Ext Id = 0x00
SFP+ 0 Connector = 0x23
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Interfaces