4-43
•
With a QSFP+ to SFP+ adapter installed in a QSFP+ port, the QSFP+ port
supports 10 SFP+ transceiver modules:
Before using a QSFP+ to SFP+ adapter, execute the
using tengige
command on the QSFP+ port where the adapter is to be installed
The QSFP+ to SFP+ adapter is available only in R6555 and later versions
NOTE:
For information about support for transceiver modules and cables of a QSFP+ port,
see
H3C S6850 & S9850 Switch Series and Transceivers Compatibility Matrix
You can use a QSFP-40G-SR4-MM850 or QSFP-40G-CSR4-MM850 transceiver
module to connect a 40G QSFP+ port to four 10G SFP+ ports. The QSFP+
transceiver module and SFP+ transceiver modules to be connected must be the
same in specifications, including central wavelength and fiber type
Support for splitting
A QSFP+ port can be split into four 10G interfaces, except in the following situations:
•
QSFP+ ports on the LSWM116Q interface module cannot be split into four
interfaces
•
When you install the LSWM18QC interface module in slot 2 on the S9850-4C
switch, interface numbered 8 on the interface module cannot be split into four
interfaces
•
When you install the LSWM124XG2Q, LSWM124XG2QFC,
LSWM124XG2QL, or LSWM124XGT2Q interface module in slot 2 on the
S9850-4C switch, interface numbered 25 cannot be split into four interfaces
SFP28 port
Item
Specification
Interface name
25 GE SFP28 Ethernet optical interface
Product compatibility
•
S6850-56HF and S6850-56HF-SAN switches: Each 48 SFP28 ports
•
LSWM124TG2H interface module: 24 SFP28 ports
•
LSWM116FC interface module: 16 SFP28 ports
Connector
LC
Description
The 25 GE SFP28 Ethernet optical interfaces support 10 GE/1 GE autosensing and
are mainly used for transmitting and receiving 25 GE/10 GE/1 GE Ethernet optical
interface services
Compliant standard
IEEE802.3by
Optical interface
attribute
Depending on transceiver modules and cables
Operating mode
•
To use an SFP28 or SFP+ copper cable to connect an SFP28 port on an
S6850-56HF or S6850-56HF-SAN switch to a peer port that does not support
speed and duplex autonegotiation, you must configure the same duplex mode
and speed for the two ports. The speed must be the same as that of the
transceiver module installed in the port
•
The SFP28 ports on an LSWM124TG2H interface module do not support
speed and duplex autonegotiation. To use an SFP+ transceiver module, SFP+
cable, or SFP transceiver module to connect an SFP28 port on an
LSWM124TG2H interface module to a peer port, you must configure the same
duplex mode and speed for the two ports. The speed must be the same as that
of the transceiver module installed in the port
•
When an interface on the LSWM116FC acts as an Ethernet interface, it can
only operate at 25 Gbps in full duplex mode and does not support speed and
duplex autonegotiation
•
To use an SFP transceiver module except for an SFP-GE-T or SFP-GE-T-D
transceiver module, make sure the autonegotiation feature is disabled on the
peer port
