20.1.6 100GBASE-R
This section explains interfaces using 100GBASE-R optical fiber.
- <Structure of this section>
(1) Connection interface
100GBASE-SR4,100GBASE-CWDM4,100GBASE-LR4,100GBASE-4WDM-40, and 100GBASE-CR4 are supported. The line rate supports 100Gbit/s, full-duplex, fixed-connection or auto-negotiated connection.
- 100GBASE-SR4
-
Used for short-distance connections. Only full-duplex fixed connections are supported (multi-mode, transmission length: max 100m*).
- 100GBASE-CWDM4
-
Used to connect between short distances and medium distance. Only full-duplex fixed connections are supported (multi-mode, transmission length: max 2km*).
- 100GBASE-LR4
-
Used for medium-distance connections. Only full-duplex fixed connections are supported (single-mode, transmission distance-max 10km).
- 100GBASE-4WDM-40
-
Used to connect between medium and long distances. Only full-duplex fixed connections are supported (single-mode, transmission distance-max 40km*).
- 100GBASE-CR4
-
Used for short-distance connections. Only connections via during auto-negotiation are supported. (Transmission length: Max. 1m*).
- #
-
The maximum distance depends on the cable used. For the transmission distance for each cable, refer to the "Hardware Instruction Manual".
(2) Connection Specifications
The following table describes the connection specifications for each connection interface. For the physical specifications of 100GBASE-R, refer to the "Hardware Instruction Manual".
|
Remote device |
Connection interface of the Switch |
||
|---|---|---|---|
|
Method |
interface |
100GBASE-SR4 100GBASE-CWDM4 100GBASE-LR4 100GBASE-4WDM-40 |
100GBASE-CR4 |
|
100GBASE full-duplex fixed |
100GBASE full duplex Auto-negotiation |
||
|
Fixed settings |
100GBASE full duplex |
100GBASE full duplex |
NG |
|
Auto- negotiation |
100GBASE full duplex |
NG |
100GBASE full duplex |
Legend: NG: A connection is not possible
(3) Notes on connection
-
Operation is not guaranteed if a transceiver other than the one shown in the "Hardware Instruction Manual" is used.
-
When QSFP28 is used, it takes 3 to 5 seconds to determine the line type of the operation-command show interfaces after the transceiver is inserted.
-
When using a direct attach cable, it takes 3 to 5 seconds for the line type of the operation-command show interfaces to be determined after the transceiver is inserted. It also takes 5 to 8 seconds to link up.