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QFX5220-32CD Port Panel

The port panel of the QFX5220-32CD has 32 high-speed ports that support transmission at 400-Gbps, 100-Gbps, or 25-Gbps speeds. It also has 2 dedicated ports for 10 Gbps.

  1

RJ-45 connection to grandmaster clock

  7

Reset button (do not use unless directed by JTAC)

  2

Chassis status LEDs

  8

Chassis serial number pull-out

  3

32 high-speed ports-QSFP-DD cages

  9

10 Gigabit Ethernet ports–SFP+ cages

  4

RJ-45 management port (100 Mbps/1000 Mbps/ 10000 Mbps)

10

Clock input and output connectors (10 MHz and 1 PPS)

  5

RJ-45 console port

11

ESD grounding point

  6

USB port (USB 2.0/3.0 standard)

 

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. See Table 1.

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 does not support autonegotiation between devices.

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. See Figure 1.

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 on 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.