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MX2000-SFB3 Switch Fabric Board Description

The MX2000-SFB3 Switch Fabric Board creates a highly scalable and resilient “all-active” centralized switch fabric that delivers up to 4 Tbps of full-duplex switching capacity per line card slot for MX2010 and MX2020 routers. The MX2000-SFB3 along with the MX2K-MPC11E Modular Port Concentrator provides industry-leading 100-Gigabit Ethernet and 400-Gigabit Ethernet-ready port density. Figure 1 shows the MX2000-SFB3.

Figure 1: MX2000-SFB3 Switch Fabric BoardMX2000-SFB3 Switch Fabric Board
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OK/FAIL status LED

 

Software release

  • Junos OS Release 19.3R2 and later 19.3 releases

  • Junos OS Release 20.1R1 and later releases

Note:

The MX2K-MPC11E is not supported in any Junos OS 19.4 releases.

Physical Description

  • Weight: 22.6 lb (10.3 kg)

  • Width: 1.7 in. (4.3 cm)

  • Depth: 23.7 in. (60.1 cm) (not including the ejector handle); 26.2 in. (64.4 cm) (with the ejector handle)

  • Height: 16.2 in. (41.2 cm)

  • Name in CLI: Switch Fabric Board 3

MX Series Router Platform Support

  • The MX2000-SFB3 supports MX2010 and MX2020 router platforms.

Prerequisites

  • Requires at least one MX2000-SFB3 switch fabric board.

  • Requires one of the following routing engines:

    • RE-MX2000-1800X4

    • REMX2K-1800-32G

    • REMX2K-X8-128G

    • REMX2K-X8-64G

Hardware Features

The MX2000-SFB3:

  • Delivers up to 4 Tbps of full-duplex switching capacity to each MPC in an MX2010 or MX2020 router.

  • Provides up to three fabric planes per Packet Forwarding Engine.

LED

The MX2000-SFB3 has one OK/FAIL LED that indicates status as follows:

  • Green—MX2000-SFB3 is online and functioning normally (OK status).

  • Red—MX2000-SFB3 has an error or failure (FAIL status).

  • Off—MX2000-SFB3 is offline.

The port LEDs under each SFB slot on the front panel of the device chassis indicate the online/offline status. These LEDs are labeled 0 through 7.

Safety, Environmental, and Security Features

  • The MX2000-SFB3 uses 48—V power systems and meets all safety requirements for 48—V isolated spacing.

  • MX2000-SFB3 is certified as an EMI emissions Class A device.

Upgrades

  • The memory storage devices in the MX2000-SFB3 are field-upgradable (I2CS, CPLD and the Super Controller FPGA).

  • The MX2000-SFB3 does not support smooth upgrades or downgrades for SFB or SFB2 fabric cards.

MX2020 and MX2010 SFB Slots

You can install up to eight MX2000-SFB3’s in MX2020 routers and MX2010 routers. The MX2000-SFB3’s install vertically into a fabric board slot on the front of the chassis in the slots labeled 0 through 7. If any slots are empty, you must install a slot cover.

CAUTION:

If one of the MX2000-SFB3’s fails, do not remove it until you have a replacement MX2000-SFB3 or slot cover ready to install.

MX2000-SFB3 Power Zones

MX2020 routers support two power zones. Power is provisioned for an MX2000-SFB3 fabric card from one of the two power zones, based on the SFB3 slot number. The power is provisioned from the lower power zone for the MX2000-SFB3 fabric cards in slots 0-3. Similarly, the power is provisioned from the upper power zone for the MX2000-SFB3 fabric cards in the slots 4-7.

Note:

MX2020 routers do not support power redundancy mode for the MX2000-SFB3 fabric card in both the power zones.

MX2010 routers support a single power zone; Therefore, power is provisioned from the same power zone for all the MX2000-SFB3 fabric cards, regardless of the SFB3 slot number.

System Power Requirements

  • DC Input Operating Range: -72 to -40 VDC

  • Maximum Power at 40 C° (72° F) + 6000 ft. (1829 m): 540 W (MX2020); 385W (MX2010)

Supported Routing Engines

The MX2000-SFB3 supports these routing engines:

  • RE-MX2000-1800X4

  • REMX2K-1800-32G

  • REMX2K-X8-128G

  • REMX2K-X8-64G

Supported Power Distribution Modules

The MX2000-SFB3 supports these power distribution modules:

  • MX2000-PDM-AC-WYE

  • MX2000-PDM-AC-DELTA

  • MX2000-PDM-DC

  • MX2K-PDM-AC-1PH

  • MX2K-PDM-OP-AC

  • MX2K-PDM-OP-DC

Supported Power Supply Modules

The MX2000-SFB3 supports these power supply modules:

  • MX2000-PSM-AC

  • MX2000-PSM-DC

Note:

With the existing power supplies, an MX2020 can support a maximum of 14 MX2K-MPC11Es (seven in the top MPC slots and seven in the bottom MPC slots) while maintaining PSM redundancy in each zone. Likewise, the MX2010 with existing power supplies can support a maximum of six MX2K-MPC11Es and maintain PSM redundancy.

Interoperabilitly with MPC Line Cards

The MX2000-SFB3 interoperates with these MPCs:

  • MX2K-MPC11E

  • MPC6E

  • MPC8E

  • MPC9E

  • MS-MPC

Starting in Junos OS Release 22.2R1 MX2000-SFB3 interoperates with these MPCs:

  • MPC7E

  • MPC5E

  • MPC2E-NG (with ethernet MICs only)

  • MPC3E-NG (with ethernet MICs only)

Interoperabilitily With Other Switch Fabric Boards

All fabric board types must be MX2000-SFB3. MX2010 routers and MX2020 routers don’t support a mixed fabric board type.

MX2K-MPC11E Support

The number of MX2K-MPC11E line cards that the MX2020 and MX2010 router chassis can support varies, depending upon the ambient temperature of the chassis and the PSM redundancy. Table 1 shows the number of MX2K-MPC11E line cards that are supported on the MX2020 router with fully populated, existing PDMs and PSMs (in redundant and non-redundant modes) at 40 C° (72° F) + 6000 ft. (1829 m).

Table 1: MX2K-MPC11E Line Card Maximums Per PSM Redundancy, Temperature, and Elevation for MX2020 Routers

With PSM Redundancy

Without PSM Redundancy

Temperature and Elevation

Upper Zone

7

8

40 C° (72° F) + 6000 ft. (1829 m)

Lower Zone

7

8

40 C° (72° F) + 6000 ft. (1829 m)

Total

14

16

40 C° (72° F) + 6000 ft. (1829 m)

Table 2 shows the number of MX2K-MPC11E line cards that are supported on the MX2010 router with fully populated, existing PDMs and PSMs (in redundant and non-redundant modes) at 40 C° (72° F) + 6000 ft. (1829 m).

Table 2: MX2K-MPC11E Line Card Maximums Per PSM Redundancy, Temperature, and Elevation for MX2010 Routers

MX2010 Line Card Type

Maximum Supported With PSM Redundancy

Maximum Supported Without PSM Redundancy

Temperature and Elevation

MX2K-MPC11E

6

7

40 C° (72° F) + 6000 ft. (1829 m)

MX2000-SFB3 Switch Fabric Board Bandwidth Per MPC Line Card

Table 3 lists the fabric bandwidth for supported MPC line cards when used with the MX2000-SFB3.

Table 3: Switch Fabric Board Bandwidth Per Supported MPC Line Card

MPC Line Card

MPC Line Card Bandwidth

Fabric Bandwidth per Packet Forwarding Engine

MPC6E

520 G

130 G

MPC8E

960 G

240 G

MPC9E

1.6 T

400 G

MX2K-MPC11E

4 T

500 G

MPC2E-NG (with ethernet MICs only)

80 G

20 G

MPC3E-NG (with ethernet MICs only)

130 G

32.5 G

MPC5E

240 G

60 G

MPC7E-MRATE

430 G

107.5 G

MPC7E-10G

400 G

100 G

MX2000-SFB3 Fabric Planes

  • There are 24 fabric planes when eight MX2000-SFB3’s are installed.

  • All eight MX2000-SFB3’s are required to support line rate traffic on the MX2K-MPC11E line card.

  • There is 7+1 MX2000-SFB3 redundancy with MPCE6, MPCE8, and MPCE9 line cards.

Related Documentation