2.2 Number of lines

The maximum number of lines that can be accommodated for each model is shown below.

<Structure of this section>

(1) AX3660S-24T4X,AX3660S-24T4XW, and AX3660S-48T4XW

The following types of AX3660S-24T4X,AX3660S-24T4XW, and AX3660S-48T4XW are available:

10BASE-T/100BASE-TX/1000BASE-T
SFP+/SFP shared

When SFP + is used, it is 10GBASE-R, and when SFP is used, it is available in 1000BASE-X. Note that 10GBASE-R is available when you use a software license or optional license that corresponds to an uplink 10G.
QSFP + port (stack-only)

A port on a 40GBASE-R that uses QSFP+ and can only be used as a stacking port. This port is now referred to as a stack-only port.

The following table describes the types of ports and the number of lines that can be used.

Table 2-2: Maximum number of lines that can be handled (AX3660S-24T4X,AX3660S-24T4XW, and AX3660S-48T4XW)
Port type	AX3660S-24T4X AX3660S-24T4XW	AX3660S-48T4XW
10BASE-T/100BASE-TX/1000BASE-T	24	48
SFP+/SFP shared	4^#	4^#
QSFP + port (stack-only)	2	2

#: An optional license (uplink 10G) is required to use SFP+ on SFP+/SFP shared port.

(2) AX3660S-16S4XW and AX3660S-24S8XW

The following types of AX3660S-16S4XW and AX3660S-24S8XW are available:

10BASE-T/100BASE-TX/1000BASE-T
SFP

Ports that can be used in 1000BASE-X. It also supports and can be used as a 10BASE-T/100BASE-TX/1000BASE-T for SFP.
SFP + Ports

Ports that can be used in 10GBASE-R.
QSFP + port (stack-only)

A port on a 40GBASE-R that uses QSFP+ and can only be used as a stacking port.

The following table describes the types of ports and the number of lines that can be used.

Table 2-3: Maximum number of lines that can be handled (AX3660S-16S4XW and AX3660S-24S8XW)
Port type	AX3660S-16S4XW AX3660S-24S8XW
10BASE-T/100BASE-TX/1000BASE-T	12
SFP	24^#
SFP + Ports	8^#
QSFP + port (stack-only)	2

#

For AX3660S-16S4XW, an optional license (port-count extension) is required. The following SFP ports and SFP + ports are available if the appropriate optional licensing is not configured:

.SFP port: 16 ports from ports 1 to 16

.SFP + port: 4 ports from ports 37 to 40

(3) AX3660S-48XT4QW

The following types of AX3660S-48XT4QW are available:

100BASE-TX/1000BASE-T/10GBASE-T
SFP+/SFP shared

When SFP + is used, it is 10GBASE-R, and when SFP is used, it is available in 1000BASE-X.
QSFP28/QSFP + shared port

It is 100GBASE-R when QSFP28 is used, and is available in 40GBASE-R when QSFP + is used. It can also be used as a stacking port. When using 100GBASE-R, some 100BASE-TX/1000BASE-T/10GBASE-T ports are disabled depending on the number of lines used.

The following table describes the types of ports and the number of lines that can be used.

Table 2-4: Maximum number of lines that can be handled (AX3660S-48XT4QW)
Port type	AX3660S-48XT4QW
100BASE-TX/1000BASE-T/10GBASE-T	44
SFP+/SFP shared	4
QSFP28/QSFP + shared port	4

The following tables show the correspondence between the number of lines that use QSFP28/QSFP + shared port in 100GBASE-R and the number of 100BASE-TX/1000BASE-T/10GBASE-T ports that can be used in such cases.

Table 2-5 Correspondence Between 100GBASE-R Used Lines and 100BASE-TX/1000BASE-T/10GBASE-T Ports
QSFP28/QSFP + shared port		100BASE-TX/1000BASE-T/10GBASE-T
100GBASE-R lines	40GBASE-R lines	100BASE-TX/1000BASE-T/10GBASE-T
0	4	44
1	3	42
2	2	36/40
3	1	34
4	0	28

If the port number used for 100GBASE-R is set using the configuration command system interface hundredgigabitethernet, some of 100BASE-TX/1000BASE-T/10GBASE-T ports are disabled. For more information, see Configuring 14.5 100GBASE-R and Changing 100BASE-TX/1000BASE-T/10GBASE-T Locks.

(4) AX3660S-24X4QW and AX3660S-48X4QW

The following types of AX3660S-24X4QW and AX3660S-48X4QW are available:

SFP+/SFP shared

When SFP + is used, it is 10GBASE-R, and when SFP is used, it is available in 1000BASE-X. It also supports a 10BASE-T/100BASE-TX/1000BASE-T for SFP and can be used as a 10BASE-T/100BASE-TX/1000BASE-T.
QSFP28/QSFP + shared port

It is 100GBASE-R when QSFP28 is used, and is available in 40GBASE-R when QSFP + is used. It can also be used as a stacking port.

The following table describes the types of ports and the number of lines that can be used.

Table 2-6: Maximum number of lines that can be handled (AX3660S-24X4QW and AX3660S-48X4QW)
Port type	AX3660S-24X4QW AX3660S-48X4QW
SFP+/SFP shared	48^#
QSFP28/QSFP + shared port	4

#: For AX3660S-24X4QW, an optional license (port-count extension) is required. The 24 SFP+/SFP shared ports from ports 1 through 24 can be used if the corresponding optional licensing is not set.