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SCBE-MX Description

The SCBE-MX is the second generation switch control board and is designed specifically for use with MPC3E line cards to provide full line-rate performance and redundancy without a loss of bandwidth.

The SCBE-MX installs vertically in the MX960 chassis and horizontally in the MX480 and MX240 chassis. The routing engine installs directly into a slot on the SCBE-MX (see Figure 1).

Figure 1: SCBE-MXSCBE-MX

Software Release

11.4R1

CLI Identification

Enhanced MX SCB

SCBE-MX Maximum Power Requirements

160 W at 55° C

130 W at 40° C

120 W at 25° C

SCBE-MX Cooling Requirements

Fabric Bandwidth Per Slot

Up to 240 Gbps (non-redundant fabric configuration); 160 Gbps (redundant fabric configuration).

  • MX240: Up to 930 Gbps

  • MX480: Up to 2.79 Tbps

  • MX960: Up to 5.25 Tbps

Switch Fabric Capacity

5.12 Tbps

SCBE-MX Features

Feature

Description

Increased Bandwidth

Provides 160 Gbps/slot bandwidth with redundant fabric support

Improved Fabric Performance

Provides improved fabric performance for high-capacity line cards using the next-generation fabric (XF) chip

Centralized Stratum 3 Clock Module

Provides a central clocking module and a centralized clocking architecture that supports clock cleanup and distribution. The Stratum 3 clock module performs clock monitoring, filtering, and holdover at a centralized chassis location.

Redundancy

Provides full performance with fabric redundancy for high-capacity line cards

Maximum Number of SCBE-MX’s Per Chassis

Table 1 lists the maximum number of SCBE-MXs you can install in the MX chassis, the corresponding slot labels, and the backup slot used for redundancy. If any slots are empty, you must install a blank panel.

Table 1: SCBE-MX Specifications

Chassis

Maximum SCBE-MXs

Slot Labels

Backup Slot

MX960

3

0, 1, and 2

2

MX480

2

0 and 1

1

MX240

2

0 and 1

1

SCBE-MX Interoperability with Routing Engines

Routing Engines

Maximum Power Requirement

RE-S-1800 (all variants)

RE-S-1300 (EOLed)

RE-S-2000 (EOLed)

RE-S-2000-4096 (EOL’d)

90 W

SCBE-MX Interoperability with MPCs

The SCBE-MX was designed to be used specifically with MPC3E line cards to provide full line-rate performance and redundancy without a loss of bandwidth. It also supports the following MPCs:

SCBE-MX Operating Mode

MX240/480/960

Supported

Enhanced IP/Enhanced Ethernet Mode Only

DPC/MS-DPC

Yes

MS-MPC

Yes

MPC1

Yes

MPC2

Yes

MPC3

Yes

MPC4

No

MPC2-NG

Yes

MPC3E-NG

Yes

16x10GE MPC

No

MPC5

Yes

MPC6

No

MPC7 (480 Gbps)

No

MPC8 (960 Gbps)

No

MPC9 (1.6 Tbps)

No

Routing Engines

RE-S-1300 (EOLed)

RE-S-2000 (EOLed)

RE-S-1800 (all variants)

yes

yes

yes

yes

SCBE-MX LEDs

The FABRIC ACTIVE, FABRIC ONLY, and OK/FAIL LEDs indicate the status of the SCBE-MX. The BITS, GPS, and UTI LEDs (next to the EXT CLK port) indicate the status of the respective clocking interface. Table 2 describes the behavior of the SCBE-MX LEDs.

Table 2: SCBE-MX LEDs

Label

Color

State

Description

FABRIC ACTIVE

Green

On steadily

Fabric is in active mode.

FABRIC ONLY

Green

On steadily

SCBE-MX operates in fabric-only mode.

Off

SCBE-MX operates in fabric/control board mode.

OK/FAIL

Green

On steadily

SCBE-MX is online.

Red

On steadily

SCBE-MX has failed.

Off

SCBE-MX is offline.

 

Red

On steadily

GPS clocking interface has failed.

Off

GPS clocking interface is offline.

Note:

The LEDs BITS, GPS, and UTI are not currently supported.

BITS

Green

On steadily

Building-integrated timing supply (BITS) clocking interface is active.

Red

On steadily

BITS clocking interface has failed.

Off

BITS clocking interface is offline.

GPS

Green

On steadily

Global positioning system (GPS) clocking interface is active.

Red

On steadily

GPS clocking interface has failed.

Off

GPS clocking interface is offline.

UTI

Green

On steadily

Universal Timing Interface (UTI) clocking interface is active.

Red

On steadily

UTI clocking interface has failed.

Off

UTI clocking interface is offline.

Upgrading to the SCBE-MX

Here’s the procedures for upgrading your MX960, MX480, or MX240 router to use the SCBE-MX: