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Interface Mapping and Modulation Format for ACX5448-D

 

The ACX5448-D does not have a physical FPC or PIC. FPC 0 refers to the router. The ports on the front panel map to logical PICs as follows:

  • Ports 0 through 35 map to PIC 0 (interfaces xe-0/0/0 through xe-/0/0/35)

  • Ports 36 and 37 map to PIC 1 (interfaces et-0/1/0 and et-0/1/1)

  • Ports 38 and 39 map to PIC 2 (interfaces ot-0/2/0 and ot-0/2/1)

For each CFP2-DCO optical module installed in ports 38 and 39, one optical transport (ot-) interface is created. Each ot- interface (ot-0/2/0 and ot-0/2/1) can operate as two 100-Gigabit Ethernet (et-) interfaces, depending on the configured rate—100 Gbps or 200 Gbps—for the CFP2-DCO module. As a result, four et- interfaces are possible—et-0/2/0, et-0/2/1, et-0/2/2, and et-0/2/3.

The optical interface to Ethernet interface mapping and modulation format is displayed in the following table:

ot- Interface

Port Number

Modulation Format

Mapped et- Interface(s)

ot-0/2/0

38

QPSK-100G

et-0/2/0

8QAM-200G

et-0/2/0

et-0/2/1

16QAM-200G

et-0/2/0

et-0/2/1

ot-0/2/1

39

QPSK-100G

et-0/2/2

8QAM-200G

et-0/2/2

et-0/2/3

16QAM-200G

et-0/2/2

et-0/2/3

The ACX5448-D has 36 SFP+ ports (035), two QSFP28 ports (36 and 37), and two CFP2-DCO ports (38 and 39).

The interface for port 36 is not created. However, you can configure port 37 as native 100-Gigabit or 40-Gigabit Ethernet interfaces, or channelize these ports into four 25-Gigabit Ethernet or 10-Gigabit Ethernet interfaces, respectively, by using CLI configuration and breakout cables. The et-0/1/0 interface is created for QSFP28 port 36 and the ot-0/2/0 interface is created for CFP2 port 38. The ot-0/2/0 interface is mapped to the et interfaces et-0/2/0 and et-0/2/1.

The QSFP28 port 36 (interface et-0/1/0) and the CFP2 port 38 (interface et-0/2/1) operate as multiplexer (also called mux) ports.

When you power on the router, the et-0/1/0 interface on port 36 is not created by default. However, the interface et-0/2/0 (on port 38) is always available. You can enable the et-0/1/0 interface (on port 36) by configuring the set chassis fpc 0 cfp-to-et command and restarting the FPC by using the restart chassis-control command. (This configuration deletes the interface et-0/2/1 on port 38.) For more information about multiplexer ports, see Port Panel of an ACX5448-D Router.

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