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QFX5220-128C Port Panel

 

Overview

The port panel of the QFX5220-128C consists of 128 high-density 100-Gigabit Ethernet quad small form-factor pluggable solution (QSFP28) ports and the management panel. The highly flexible ports support 100-Gbps or 40-Gbps port speeds; 100-Gbps speed is the default, 40G-Gbps must be configured. The QFX5220-128C supports channelizing the QSFP28 ports to 4 independent 25-Gbps speed interfaces. The switch has two dedicated 10-Gigabit Ethernet ports and when the 128 ports are configured for 40-Gbps speeds, 32 of the 128 ports can be channelized to 4 x 25-Gbps. See Figure 1.

Figure 1: QFX5220-128C Port Panel
QFX5220-128C Port Panel
  1
128 QSFP28 ports
  7
USB 2.0 port
  2
RJ-45 time-of-day message port
  8
Reset button
  3
PTP-capable connections: SMB In, SMB Out, 10 MHz In, 10 MHz Out
  9
ESD point
  4
Chassis status alarms
10
RJ-45 MGMT connection for the re0:mgmt-0 management interface
  5
2 SFP+ ports
11
Chassis serial number pull-out tab
  6
RJ-45 console port (CON) to support RS-232 serial ports. (The LEDs indicate status and link.)
 

Network Ports

The QFX5220-128C QSFP28 network ports (0 to 127) support:

  • 100-Gbps QSFP28 transceivers

  • 100-Gbps QSFP28 direct attach copper (DAC) cables

  • 100-Gbps QSFP28 to 25-Gbps SFP28 direct attach copper break out (DACBO) cables (100-Gbps breaks out to 4 independent 25-Gbps ports)

  • 100-Gbps active optic cables (AOC)

  • 40-Gbps QSFP+ transceivers

  • 40-Gbps AOC

  • 40 Gbps QSFP+ DAC cables

  • 40 Gbps QSFP+ transceivers

  • 40 Gbps QSFP+ to 10 Gbps SFP+ DACBO cables (40 Gbps breaks out to 10 Gbps ports)

Note

Ports qualified for channelization support 100-Gbps QSFP28 to 25-Gbps SFP28 direct attach copper break out (DACBO) cables (100-Gbps breaks out to 4 independent 25-Gbps.

The 10-Gbps network ports 128 (et-0/0/128) and 129 (et-0/0/129) support SFP+ transceivers.

Port Configurations

The QFX5220-128C has 128 QSFP28 ports and 2 SFP+ ports. You can configure any of these ports in these combinations:

  • Any of the QSFP28 ports can be configured as 100 Gbps.

  • Any even-numbered QSFP28 port can be configured as 40 Gbps. The system will configure the next (odd) port as unused.

  • Every fourth port (0, 4, 8...124) can be configured as channelized 4 x 25 Gbps. However before configuring a port as channelized, the next three ports must be configured as unused.

  • Any SFP+ port can be configured as 10 Gbps or 1 Gbps.

Table 1 shows how each QSFP28 port can be configured. You can mix and match speeds as long as you adhere to the port rules. For example, on the same device you can configure port 0 as 40 Gbps, ports 2 and 3 as 100 Gbps, and port port as 4 x 25 Gbps. In this example, port 1 and port 5-7 must be configured as unused.

Table 1: QFX5220-128C Valid 100-Gbps Configurations

Port

Ports Configurable as 100 Gbps

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

0

1

Configure as unused

Configure as unused

2

Configure as unused

3

Configure as unused

Configure as unused

4

5

Configure as unused

Configure as unused

6

Configure as unused

7

Configure as unused

Configure as unused

8

9

Configure as unused

Configure as unused

10

Configure as unused

11

Configure as unused

Configure as unused

12

13

Configure as unused

Configure as unused

14

Configure as unused

15

Configure as unused

Configure as unused

16

17

Configure as unused

Configure as unused

18

Configure as unused

19

Configure as unused

Configure as unused

20

21

Configure as unused

Configure as unused

22

Configure as unused

23

Configure as unused

Configure as unused

24

25

Configure as unused

Configure as unused

26

Configure as unused

27

Configure as unused

Configure as unused

28

29

Configure as unused

Configure as unused

30

Configure as unused

31

Configure as unused

Configure as unused

32

33

Configure as unused

Configure as unused

34

Configure as unused

35

Configure as unused

Configure as unused

36

37

Configure as unused

Configure as unused

38

Configure as unused

39

Configure as unused

Configure as unused

40

41

Configure as unused

Configure as unused

42

Configure as unused

43

Configure as unused

Configure as unused

44

45

Configure as unused

Configure as unused

46

Configure as unused

47

Configure as unused

Configure as unused

48

49

Configure as unused

Configure as unused

50

Configure as unused

51

Configure as unused

Configure as unused

52

53

Configure as unused

Configure as unused

54

Configure as unused

55

Configure as unused

Configure as unused

56

57

Configure as unused

Configure as unused

58

Configure as unused

59

Configure as unused

Configure as unused

60

61

Configure as unused

Configure as unused

62

Configure as unused

63

Configure as unused

Configure as unused

64

65

Configure as unused

Configure as unused

66

Configure as unused

67

Configure as unused

Configure as unused

68

69

Configure as unused

Configure as unused

70

Configure as unused

71

Configure as unused

Configure as unused

72

73

Configure as unused

Configure as unused

74

Configure as unused

75

Configure as unused

Configure as unused

76

77

Configure as unused

Configure as unused

78

Configure as unused

79

Configure as unused

Configure as unused

80

81

Configure as unused

Configure as unused

82

Configure as unused

83

Configure as unused

Configure as unused

84

85

Configure as unused

Configure as unused

86

Configure as unused

87

Configure as unused

Configure as unused

88

89

Configure as unused

Configure as unused

90

Configure as unused

91

Configure as unused

Configure as unused

92

93

Configure as unused

Configure as unused

94

Configure as unused

95

Configure as unused

Configure as unused

96

97

Configure as unused

Configure as unused

98

Configure as unused

99

Configure as unused

Configure as unused

100

101

Configure as unused

Configure as unused

102

Configure as unused

103

Configure as unused

Configure as unused

104

105

Configure as unused

Configure as unused

106

Configure as unused

107

Configure as unused

Configure as unused

108

109

Configure as unused

Configure as unused

110

Configure as unused

111

Configure as unused

Configure as unused

112

113

Configure as unused

Configure as unused

114

Configure as unused

115

Configure as unused

Configure as unused

116

117

Configure as unused

Configure as unused

118

Configure as unused

119

Configure as unused

Configure as unused

120

121

Configure as unused

Configure as unused

122

Configure as unused

123

Configure as unused

Configure as unused

124

125

Configure as unused

Configure as unused

126

Configure as unused

127

Configure as unused

Configure as unused

100-Gbps Port Configuration

All QSFP28 ports work by default as 100 Gbps. The ports are autosensing; if a 100 Gbps transceiver is inserted, no configuration is required.

40-Gbps Port Configuration

Before configuring a port for 40 Gbps, determine its associated used port (see Table 1). In the following example, you’ll configure port et-0/0/0.

  1. Block the port following the desired 40-Gbps port as unused and commit the configuration. For example, because you are configuring et-0/0/0 as 40 Gbps, you must first configure the following port (et-0/0/1) as unused and commit that configuration.
    # set chassis fpc 0 pic 0 port 1 unused
    # commit
  2. Configure the speed on the desired port (et-0/0/0) as 40 Gbps and commit the configuration.
    # set chassis fpc 0 pic 0 port 0 speed 40g
    # commit

4 x 25 Gbps Port Channelization

Before configuring a port for channelization, determine its associated used ports (see Table 1). In the following example, you’ll configure port et-0/0/4 to operate as a 4 x 25 Gbps channelized port.

  1. Block the three ports following the desired channelized port as unused, and commit the configuration. For example, because you are configuring et-0/0/4 as 4 x 25 Gbps, you must first configure the following ports (et-0/0/5, et-0/0/6, and et-0/0/7) as unused and commit the configuration.
    # set chassis fpc 0 pic 0 port 5 unused
    # set chassis fpc 0 pic 0 port 6 unused
    # set chassis fpc 0 pic 0 port 7 unused
    # commit

    Software removes these ports and updates the configuration.

  2. Configure the speed on the desired port (et-0/0/4) as 25 Gbps, the number -of sub-ports as 4, and commit the configuration:
    # set chassis fpc 0 pic 0 port 4 speed 25g number-of-sub-ports 4
    # commit

Delete 4 x 25 Gbps or 4 x 10 Gbps Port Channelization

To remove the channelization configuration from a set of QFX5220-128C ports, delete the configuration from the channelized port and commit the configuration. For example:

# delete chassis fpc 0 pic 0 port port-number number-of-sub-ports 4
# delete chassis fpc 0 pic 0 port port-number speed port-speed
# commit

QFX5220-128C Network LEDs

The QSFP28 network ports use a single bi-colored LED for each port or channel to indicate link status, activity on the link, or a fault condition. When the port is channelized, there is an LED for each channel; when the port is not channelized, the left-most LED indicates the port link status.

The 10-Gbps SFP+ ports have separate bi-colored LEDs; the left LED indicates link and activity and the right LED indicates a fault condition. See Figure 2.

Figure 2: Link/Activity and Status LEDs on QFX5220-128C
Link/Activity and Status
LEDs on QFX5220-128C
  1
QSFP28 LEDs that indicate link/activity,status, and channelization
  2
SFP+ :LEDs that indicate link/activity and status

Table 2 describe the various states of the LEDs for the QSFP28 ports and Table 3 describe the LED states for the SFP+ ports.

Table 2: Network Port LEDs on QSFP28 Ports on a QFX5220-128C Switch

Color

State

Non-Channelized

Channelized

Unlit

Off

The port is administratively disabled, there is no power, the link is down, no module is present, or the interface is disabled.

A module is not present, all sub-channels are disabled, or there is no link.

Green

On steadily

A link is established, but there is no link activity.

All sub-channels are up.

Flashing

A link is established, and there is link activity.

The interface is up with activity.

Blipping

The beacon is enabled on the port.

The beacon is enabled on the port.

Amber

On steadily

NA

At least one, but not all sub-channels are up.

Blinking

There is an interface error.

There is an error on one or more sub-channels.

Flashing

NA

At least one, but not all sub-channels are up with activity.

Table 3: Network Port LEDs on SFP+ Ports on a QFX5220-128C Switch

LED

Color

State

Description

Link/Activity

Unlit

Off

The port is administratively disabled, there is no power, the link is down, or there is a fault.

Green

On steadily

A link is established, but there is no link activity.

Blinking

A link is established, and there is link activity.

Amber

Blinking

The beacon is enabled on the port.

Status

Unlit

Off

The link is down or there is a fault.

Green

On steadily

A 10-Gigabit Ethernet transceiver is installed in the port and link is established.

Green

Blinking

A 1-Gigabit Ethernet transceiver is installed in the port and the link is established.

Amber

Slow blipping

The beacon function is enabled on the port.