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EX9200-SF3 Module in an EX9200 Switch

 

Starting in Junos OS Release 20.3R1, the EX9200-SF3 Swith Fabric module is available. The EX9200-SF3 provides improved fabric performance and bandwidth capabilities for high-capacity line cards. In a redundant configuration, the EX9200-SF3 provides fabric bandwidth of up to 1 Tbps per slot. In a nonredundant configuration the EX9200-SF3 provides fabric bandwidth of up to 1 Tbps per slot (four fabric planes) and 1.5 Tbps per slot fabric bandwidth when all six fabric planes are used (with EX9200-15C line cards).

Figure 1 shows the SF module, EX9200-SF3.

Figure 1: EX9200-SF3
EX9200-SF3

The EX9200-SF3

Software release

Junos OS Release 20.3R1 and later

Name in CLI: EX9200-SF3

EX9200-SF3 Components and Features

Component/Feature

Description

XGE ports

Two Ethernet ports provide 10GbE and 1GbE SFP+ interfaces. These ports also are connected to the Ethernet control switch, which limits the traffic for the 10GbE port and provides security to prevent unwanted access to the control plane through the external ports.

GPS port

One RJ-45 GPS external clock interface port receives GPS and PPS timing from the GPS external interface. A red LED indicates there is no clock present or the clock is not OK. A green LED indicates the clock interface is active and OK. If the LED is off, the clock interface is not enabled.

External clock interface

The external clock interface is on the EX9200-SF3 front panel. The clock source interface receives GPS and PPS timing from the GPS external interface.

Centralized Stratum3E clock module

The clock module performs clock monitoring, filtering, and holdover on the centralized fabric card. This centralized clocking architecture also provides clock cleanup and distribution.

In-system removable Routing Engine

The in-system Routing Engine can support any new Routing Engine that conforms to the standard modular Routing Engine I/O interface and form factor.

Note: When a Routing Engine is not installed in the EX9200-SF3, you need to cover the empty slot with a blank panel.

Hot-swappable

The EX9200-SF3 and associated Routing Engine assembly are hot-swappable. The system software provides a mechanism to shut down the Routing Engine/EX9200-SF3. The system software also provides a method to reset or reboot the Routing Engine/EX9200-SF3. This support is provided through CLI commands and various hardware support circuits.

Note: Before removing the module, you must bring the Routing Engine offline to avoid corrupting the hard drive.

System upgrade capabilities

See Upgrading to an EX9200-SF3 for details.

Redundancy

With three EX9200-SF3 Switch Fabric modules installed, the EX9214 provides 2 + 1 redundancy. With two EX9200-SF3s installed, the EX9204 and EX9208 provide 1 + 1 redundancy.

DMR

Supports dynamic multicast replication (DMR).

GRES

Supports graceful Routing Engine switchover (GRES).

Hitless operation

Allows you to upgrade programmable parts and reboot with “hitless” operation if the redundant EX9200-SF3s are inserted in the system and are operational.

Removable Routing Engine module

You can remove the Routing Engine module FRU in the existing form factor.

EX9200-SF3 LEDs

Table 1 describes the functions of the EX9200-SF3 LEDs.

Table 1: EX9200-SF3 Module LEDs

LED

Status

Description

OK/FAIL

Green

Switch Fabric is online.

Red

Switch Fabric has failed.

Unlit

Switch Fabric is offline.

FABRIC ACTIVE

Green

Switch Fabric is in active mode.

Unlit

Switch Fabric is offline.

FABRIC ONLY

Green

On steadily—Switch Fabric is operating in fabric-only mode.

Unlit

Switch Fabric is not operating in fabric-only mode.

XGE Port LINK

Green

Port is enabled and a link is established.

Unlit

Port is disabled or no link is established.

GPS EXT CLK

Green

A link is established.

Amber (blinking)

There is activity on the clocking interface.

EX9200-SF3 Fabric Bandwidth Performance and Redundancy

EX9214 Switches:

  • The EX9214 system can contain up to three EX9200-SF3s to provide a total of six switch fabric planes for packet forwarding among the MPCs. Two fabric planes per EX9200-SF3s are required. To achieve full fabric bandwidth performance, three EX9200-SF3s must be installed in the EX9214 chassis.

  • Two chassis slots are provided in the center of the EX9214 chassis in slots 6 and 7 (also designated as slot SF0 and slot SF1) for two EX9200-SF3s, each equipped with a Routing Engine.

  • To provide 2 + 1 fabric redundancy for an EX9214, a third EX9200-SF3 must be installed in slot 8 (also designated as slot SF2).

  • Slot 8 in the EX9214 chassis is a dual-purpose slot, and supports either an EX9200-SF3 or a line card. When the EX9200-SF3/Routing Engine are plugged into slot 8, the Routing Engine is powered down and does not provide any control functionality for the board or the EX9214. The fabric-only LED on the card faceplate will be lit when an EX9200-SF3/Routing Engine assembly is plugged into slot 8.

  • Once redundancy is configured, the primary EX9200-SF3 controls the chassis.

  • Graceful upgrades can be achieved on a non-primary redundant EX9200-SF3.

  • In a redundant configuration, the non-primary redundant Routing Engine can be removed or installed without affecting the switching plane functionality on the EX9200-SF3 in which it resides.

  • In a nonredundant configuration, all six fabric planes will be in active mode for increased fabric bandwidth.

  • There is one physical switch fabric per EX9200-SF3 and it acts as two virtual planes in the EX9214.

EX9204 and EX9208 Switches:

  • You can install either one or two EX9200-SF3s in the EX9204 and EX9208 chassis in the slots labeled 0 and 1.

  • The EX9200-SF3 in slot 0 (SF0) provides two fabric planes; the EX9200-SF3 in slot 1 (SF1) provides four fabric planes. A total of six fabric planes are available in the EX9204 and EX9208.

  • In a redundant configuration, two fabric planes on the first EX9200-SF3 and two fabric planes on the other EX9200-SF3 will be in active mode.

  • There is one physical switch fabric per EX9200-SF3, and it acts as four virtual planes in the EX9204 and EX9208.

    Two EX9200-SF3 modules installed in the EX9204 and EX9208 are required for 1 + 1 redundancy. To provide 1 + 1 fabric redundancy, there must be an EX9200-SF3 installed in slot 1.

    Note
    • If SF0 fails, SF1 will be automatically configured with four fabric planes active. In this failover scenario, the EX9200-SF3 will support full line rate 100 percent redundancy.

    • If SF1 fails, SF0 has only two available fabric planes; therefore, in this failover mode, the line rate will drop to 50 percent.

EX9200-SF3 Maximum Power Consumption per Ambient Temperature and CB Slot

Note

These power consumption values are for the EX9200-SF3 only. They do not include reallocated power.

EX Series Model

Ambient Temperature

Maximum Power Consumption

Slot

EX9214

131° F (55° C)

104° F (40° C)

77° F (25° C)

425 W

400 W

385 W

SF0, SF1, SF2

EX9208

131° F (55° C)

104° F (40° C)

77° F (25° C)

295 W

280 W

265 W

SF0 (primary)

EX9208

131° F (55° C)

104° F (40° C)

77° F (25° C)

295 W

280 W

265 W

SF1 (backup)

EX9204

131° F (55° C)

104° F (40° C)

77° F (25° C)

275 W

260 W

245 W

SF0 (primary)

EX9204

131° F (55° C)

104° F (40° C)

77° F (25° C)

295 W

280 W

265 W

SF1 (backup)

Interoperability with Existing Hardware

Table 2: EX9200-SF3 Interoperabilitiy with Line Cards and Routing Engines

EX9200-SF3 Operating Mode

EX9204/EX9208/EX9214

Supported

Enhanced IP/enhanced Ethernet mode only

EX9200-2C-8XS

No

EX9200-4QS

No

EX9200-6QS

No

EX9200-MPC

Yes

EX9200-12QS

Yes

EX9200-32XS

Yes

EX9200-40T

No

EX9200-40F

No

EX9200-40F-M

No

EX9200-40XS

Yes

Supported Routing Engines

EX9200-RE

EX9200-RE2

yes

yes

Note

Hyper-mode is the default forwarding mode on the EX9200-SF3. If your deployment does not need hyper-mode, disable hyper-mode using the set forwarding-options no-hyper-mode CLI command before installing the Routing Engine into the EX9200-SF3.

Note

Enhanced IP is the default network service on the EX9200-SF3.

EX9200-SF3 Unsupported Functions and Capabilities from Legacy Swith Fabric Modules

  • The EX9200-SF3 does not support the external UTI/DTI interface (front panel LED and daughter card interface).

  • The EX9200-SF3 does not interoperate with any previous generation SF modules (EX9200-SF and EX9200-SF2). Smooth upgrade is not supported.

  • The EX9200-SF3 does not support BITS.

  • The EX9200-SF3 does not support DPCs.

  • The EX9200-SF3 does not support mixed mode (DPC + MPC).

  • The EX9200-SF3 does not support the JAM release.