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QFX5210-64C Port Panel

 

QFX5210-64C Port Panel Overview

The port panel of the QFX5210-64C has 64 quad small-form factor pluggable plus (QSFP28) ports for port configuration speeds of 100 -Gigabit Ethernet or 40-Gigabit Ethernet. It also has two small-form factor plus (SFP+) ports for 1-Gigabit Ethernet or 10-Gigabit Ethernet interfaces. The QSFP28 ports can be configured either as 100-Gigabit Ethernet ports (default) or as 40-Gigabit Ethernet ports. The ports auto-sense the transceiver type and set the speed accordingly. Any of the 64 ports 0 through 63 can be configured as uplinks or as access ports.

Figure 1 shows the port panel of the QFX5210-64C.

Figure 1: QFX5210-64C Port Panel
QFX5210-64C Port Panel
  1
Reset button
  5
USB port
  2
64 QSFP28 ports and 2 SFP+ ports
  6
Console port
  3
Management port
  7
Chassis alarm LEDs
  4
10-Gigabit Ethernet SFP+ ports
 

Network Ports

Network device ports ( 0 through 31) support:

  • 100-Gbps QSFP28 transceivers

  • 40-Gbps QSFP+ transceivers

  • QSFP28 direct attach copper (DAC) cables

  • QSFP+ DAC cables

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

  • QSFP28 to QSFP+ DACBO cables (100 Gbps breaks out to 25 Gbps)

Network device ports ( 32 through 63) support:

  • 100 Gbps QSFP28 transceivers

  • 40 Gbps QSFP+ transceivers

  • QSFP28 direct attach copper (DAC) cables

  • QSFP+ DAC cables

Caution

High wattage optics (greater than 3.5 W) are only supported in ports 32 to 63 on QFX5210-64C-AFI. There is no restriction on high wattage optics on QFX5210-64C-AFO.

Channelizing Interfaces

The method of channelizing QFX5210-64C ports and the behavior of the ports and interfaces is Junos OS release dependent. For switches running Junos OS releases before Junos OS 19.1R1, see Channelization on QFX5210-64C Running Initial Junos Releases. For switches running Junos OS 19.1R1 and later, see Channelization on QFX5210-64C Running Junos OS 19.1R1 and Later.

Note

If a QFX5210-64C is fully populated with optics and is using 25 Gbps or 10 Gbps channelization, it can take up to 7 minutes for the ports to link.

Channelization on QFX5210-64C Running Initial Junos Releases

The QFX5210-64C initial offering ran Junos OS 18.1R1. Until the behavior change in 19.1R1, the 64 ports are divided into two ranges:

  • Lower order ports (031)

  • Higher order ports (3263)

When a lower port is channelized, the corresponding higher port is disabled to regulate the number of allowed phy ports to 128. For example, port 0 disables port 32 and port 31 disables port 63. See Table 1.

  • All 64 ports (0 to 63) can operate as either 40-Gigabit Ethernet or 100-Gigabit Ethernet.

  • When ports 0 through 31 are configured for 40-Gigabit Ethernet and a 4x10G breakout cable is inserted, the system converts the port into 4 independent 10-Gigabit Ethernet ports. Ports 32 to 63 are not eligible for 4x10G breakout.

  • When ports 0 through 31 are configured for 100-Gigabit Ethernet and a 4x25G breakout cable is detected, the system converts the port into 4 independent 25-Gigabit Ethernet ports. When a 2x50G breakout cable is detected, the system converts the port into 2 independent 50-Gigabit Ethernet ports.

  • When ports 32 through 63 are configured for 100-Gigabit Ethernet and a 2x50G breakout cable is detected, the system converts the port into 2 independent 50-Gigabit Ethernet ports.

Port combinations can be mixed up to the system maximum of 128 phy ports.

Caution

Changing the channelization mode causes the FPC to reboot. Because there can be a slight loss of data while the FPC reboots, we recommend that you only configure the changes during a maintenance window.

To channelize the ports, manually configure the port speed using the set chassis fpc 0 pic 0 port port-number channel-speed speed command, where the speed can be set to 10G, 25G, 40G, 50G, or 100G.

Table 1: Supported Speeds for Junos Releases Up to Junos OS 19.1R1

Mode

Ports 0 to 31

Ports 32 to 63

Default, not channelized

40 Gbps, 100 Gbps

40 Gbps, 100 Gbps

Channelized

10 Gbps, 25 Gbps, 40 Gbps, 50 Gbps, 100 Gbps

40 Gbps, 50, Gbps, 100 Gbps

Channelization on QFX5210-64C Running Junos OS 19.1R1 and Later

Beginning in Junos OS 19.1R1, system mode configuration is no longer necessary to channelize ports. Systems upgrading to this release and later ignore previous system mode settings.

  • Dechannelized ports or clear ports behavior

    All 64 ports (0 to 63) auto-sense the transceiver speed and set the port speed to either 40 Gbps or 100 Gbps. The default port speed is 100 Gbps. No ports are channelized.

  • Channelized behavior

    The switch has a maximum channelization limit of 128 channels or interfaces. The 64 ports are divided into four blocks of ports (0 to 3). Within each block of 16 physical ports, you can channelize any of ports to create up to 32 interfaces. The remaining ports in the block are still available as dechannelized ports. Because the 128 interface restriction is not a Junos OS limitation, the upgrade to the newer version of Junos OS has little impact except it makes more ports available. Switches being upgraded to Junos OS 19.1R1 and later ignore system mode configurations from the earlier releases. See Figure 2:

    Figure 2: Improved Flexible Port Channelization Blocks
    Improved Flexible Port Channelization
Blocks

    For example, to maximize all of the 16 ports in block 0, you could channelize the ports 0 through 3 each as 4 downstream 25 Gbps speed ports, which would consume 16 interfaces. The remaining ports (8, 9, 10, 11, 32, 33, 34, 35, 40, 41, 42, and 43) are available as non-channelized ports to run 40 Gbps or 100 Gbps speeds. The 12 non-channelized ports consume another 12 interfaces for block 0 for a total of 28 interfaces. Because 28 is less than 32, it satisfies the rules for the block.

    Instead in this example, let’s say it is more important to you to channelize as many ports as possible. You could channelize block 1 ports 4, 5, 6, 7, 12, 13, 14, and 15 each as 4 downstream 25 Gbps speed ports. That’s 8 ports, each with 4 interfaces, for a total of 32 interfaces. Again, it satisfies the rules for the block. The remaining ports in block 1 are disabled and ineligible for use until one of channelized ports is changed to default mode.

To channelize the ports, manually configure the port speed using the set chassis fpc slot-number pic 0 port port-number channel-speed speed command, where the speed can be set to 10G, 25G, 40G, 50G, or 100G.

QFX5210 Network Port LEDs

The Link/Activity LED configuration for QFX5210 switches use bi-colored LEDs. The link LED indicates link activity or a fault. See Table 2.

Table 2: QFX5210 Network Ports LEDs

Port Type

Indicators

Location

QSFP28 for 40 Gbps, 100 Gbps speeds and breakouts

Channelization

Link

Status

There are four bi-color LEDs for each QSFP+ port. For 100 Gbps speeds, only the first LED is lit when the interface is configured for 100-Gigabit Ethernet and connected to a QSFP28 transceiver. All four LEDs are lit when the interface is configured for 10-Gigabit Ethernet or 25-Gigabit Ethernet and the port is connected using a 40-Gigabit optical splitter cable or a copper DACBO cable.

SFP+

Link Status

There are two bi-color LEDs for each SFP+ port.

Table 3 describes how to interpret the Link/Activity QSFP28 port LEDs.

Table 3: QFX5210-64C QSFP28 Network Port LEDs

Color

State

QSFP28 Description

Unlit

Off

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

When configured for 25-Gigabit Ethernet, the LED remains unlit only if all four of the 25-Gigabit Ethernet QSFP+ breakout links are down.

Green

On steadily

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

When configured for 25-Gigabit Ethernet, the LED is lit green when at least one of the four 25-Gigabit Ethernet QSFP+ breakout links is established.

Blinking

A link is established, and there is link activity.

When configured for 25-Gigabit Ethernet, the LED is lit green when at least one of the four 25-Gigabit Ethernet QSFP+ breakout links is established.

Note

Beacon is not supported on a per-port basis on QSFP28 ports.

Table 4 describes how to interpret the Link/Activity SFP+ port LEDs.

Table 4: QFX5210-64C SFP+ Port LEDs

Color

State

SFP+ Description

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 function is enabled on the port.

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