QFX5220-32CD Port Panel

Network Ports

The QFX5220-32CD network ports (0 to 31) support:

• 400-Gbps QSFP-DD direct attach copper (DAC) cables

• 400 Gbps active optic cable (AOC) (starting in Junos OS Evolved Release 19.3R2)

• 100-Gbps QSFP28 transceivers

• 100 Gbps active optic break outcables (AOCBO) QSFP28 to four SFP25G interfaces

• 40-Gbps QSFP+ to SFP+ DACBO cables (40-Gbps breaks out to 4 independent 10-Gbps connections)–Junos OS Evolved Release 20.2R1 and later

The 10-Gbps network ports 32 and 33 support small form-factor plus (SFP+) transceivers.

Setting Port Speed and Channelization

The default port speed for ports 0 through 31 is 400 Gbps. Only QSFP-DD optics inserted in these ports will link without configuration.

Table 1: QFX5220-32CD Port Speed Autodetection

Transceiver, DAC, AOC, DACBO, or AOCBO	Sets Default Speed to
QSFP-DD	400 Gbps, link up
QSFP28	400 Gbps, link down
QSFP	400 Gbps, link down
SFP+ (ports 32 and 33 only) and management port	10 Gbps, link up

Note:

The QFX5220-32CD network ports (0 to 31) support:

• The last two SFP+ ports cannot support 1GbE modules. These two ports support only 10GbE modules.

If a port already has a speed configured, you can manually configure the ports. To set the speed, use the set chassis fpc FPC number pic pic number port port number speed 25|40|100|200|400 configuration mode CLI command. For example, to set port 2 to 100 Gbps:

Note:

On QFX5220-32CD devices, there is a single FPC and PIC, which is always 0.

After you set a port speed, you can channelize the port into 4 independent 25-Gigabit Ethernet interfaces by configuring the number of subports and speed. You should use the set chassis fpc FPC number pic pic number port port number number-of-sub-ports 1|2|3|4 command. For example, to configure 100-Gbps port 4 to four independent 25-Gbps interfaces:

Be sure to save and commit your changes.

Warning:

An incorrectly configured port can cause unexpected port and switch behavior. The system software does not check whether the port speed or the attached optic are supported at the time of the commit. Use the show chassis alarms and the show chassis pic fpc-slot 0 pic-slot 0 to locate incorrectly configured ports. See Configuration Changes Leading to Unexpected QFX5220 Behavior.

QFX5220-32CD Network LEDs

The high-speed QSFP-DD network ports use a single bi-colored LED to indicate link status, activity on the link, or a fault condition. The 10-Gbps SFP+ ports have separate bi-colored LEDs; the left LED indicates link and activity and the right LED indicates fault conditions.

Table 2 describes the various states of the network port LED for the high-speed ports. Table 3 describes how to interpret the link and activity LED and the status LEDs for the SFP+ ports.

Table 2: QSFP-DD Network Port LEDs Table 2on a QFX5220-32CD

Color	State	Channelized	Description
Unlit	Off	No	Off is the default mode. The LED can be unlit even when power is present and a transceiver is present in the port. The port is administratively disabled. The link is down. A fault is detected on the link.
		Yes	The port is administratively disabled.
Green	On steadily	No	A 400-Gbps or 100-Gbps link is established, but there is no activity.
		Yes	All channels or subports have link established but there is no activity.
	Flashing	No	A 400-Gbps or 100-Gbps link is established, and there is link activity.
		Yes	All channels or subports have links established and there is link activity.
	All LEDs Blipping (slow flashing)	Either	Indicates that the beacon feature is activated (service request).
Amber	Blinking	Either	One or more interface or connection errors has occurred.
	Flashing	Yes	At least one channel or subport has a link, but not all channels or subports have links established.

Table 3: SFP+ Network Port LEDs on QFX5220-32CD

LED	Color	State	Description
Link/Activity	Off	Link down	Link down—The port does not have a connection.
	Green	On steadily	Link up—The port has a connection, but there is no activity.
		Flashing	Active link—The port has a connection and there is activity.
		Blipping (slow flashing)	Beacon–The port has a service request.
Status	Green	On steadily	The port is configured for 10 Gbps.
	Amber	Blinking	Fault–The port has an interface error.