SRX3400 Services Gateway Switch Fabric Board

The Switch Fabric Board (SFB) is the data plane for the subsystems in the chassis. The SFB performs the following functions:

Powers the services gateway on and off
Controls clocking and distribution
Provides eight copper Gigabit Ethernet ports and four fiber Gigabit Ethernet ports
Provides two high availability (HA) Control ports
Provides interconnections to all the IOCs within the chassis through integrated switch fabrics
Handles arbitration among the CFMs
Handles switching among multiple SPCs if present
Provides service ports, system LEDs, and operational buttons on the front panel

Figure 7: Switch Fabric Board

Table 8 describes the behavior of the Power button near the left end of the SFB front panel.

Table 8: Power Button Behavior

Condition	Action	Result
Services gateway powered off	Short push (3 to 5 seconds)	Powers the services gateway on. The PWR LED blinks to show you that the Routing Engine is initializing.
Services gateway powered on	Short push (3 to 5 seconds)	Initiates a graceful shutdown that preserves the services gateway state information. The PWR LED blinks to show you that the services gateway is shutting down.
Services gateway powered on	Long push (15 seconds or more)	Initiates an immediate shutdown. The services gateway state information will be lost. Avoid using immediate shutdown unless necessary.

Table 9 describes the system behavior indicated by the various LEDs on the front panel of the SFB. LEDs are listed based on their location on the services gateway, from left to right. Table 10 describes the ports/connections available on the front panel of the SFB.

Table 9: Switch Fabric Board LED Indicators

Label	Color	Status	Indicated Behavior
Alarm (pair)
Critical (Top)	Red	On steadily	A critical alarm is present in the system. A hardware component or software module has failed, or the network management interface is down.
Critical (Top)	Dark (unlit)	Off	No critical alarms are present in the system.
Non-Critical (Bottom)	Yellow	On steadily	A noncritical alarm is present in the system. Examples of noncritical alarms include: Memory usage is high on the Services Processing Unit (SPU); less than 10% available. The maximum number of sessions has been reached. The maximum number of tunnels has been reached. HA status has changed. Services gateway temperature is too warm.
Non-Critical (Bottom)	Dark (unlit)	Off	No alarms are present in the system.
SFB and HA (pair)
SFB	Green	On steadily	The SFB is operating normally.
	Green	Blinking	The SFB is initializing.
	Amber	On steadily	The switch fabric is operating normally, but the Ethernet interfaces are not operating normally.
	Red	On steadily	The SFB has failed and is not operating normally.
HA	Green	On steadily	High availability is operating normally. All cluster members and all HA links are available.
	Amber	On steadily	An alarm is present on the HA link. All cluster members are present, but some HA links are down. There are still enough links for full functionality, but performance could be impaired (reduced bandwidth could cause packets to get dropped, or reduced resiliency as a single point of failure might now exist).
	Red	On steadily	A critical alarm is present on the HA. One or more cluster members are missing or unreachable; or active when secondary-path is engaged.
	Dark (unlit)	Off	HA is disabled—Services gateway is not configured for clustering or HA is disabled by secondary path.
CFM Status (pair)
SERVICE (top)	Green	On steadily	The SFB and all installed CFM cards are operating normally. The SERVICE LEDs on all installed CFM cards are green.
	Amber	On steadily	The SFB or one or more of the installed CFM cards has reported a minor error condition. The SERVICE LEDs on the CFM cards reporting the error are amber.
	Red	On steadily	The SFB or one or more of the installed CFM cards has failed. The SERVICE LEDs on the failed CFM cards are red.
	Dark (unlit)	Off	One or more of the installed CFM cards are disabled. The SERVICE LEDs on the disabled CFM cards are dark.
OK/FAIL (bottom)	Green	On steadily	The SFB and all installed CFM cards are operating normally. The OK/FAIL LEDs on all installed CFM cards are green.
	Red	On steadily	The SFB or one or more of the installed CFM cards has failed. The OK/FAIL LEDs on the failed CFM cards are red.
	Dark (unlit)	Off	One or more of the installed CFM cards are offline. The OK/FAIL LEDs on the offline CFM cards are dark.
Routing Engine Status (pair)
RE0 (top)	Green	On steadily	The Routing Engine in RE0 is functioning as the master Routing Engine. Only one Routing Engine can be installed.
	Green	Blinking	The Routing Engine in slot RE0 is initializing.
	Red	On steadily	Either the Routing Engine or Control Board function on RE0 has failed and is not operating normally.
	Dark (unlit)	Off	The RE0 slot is empty.
RE1 (bottom)	Unused.
Power and Fan (pair)
PWR (top)	Green	On steadily	The services gateway is receiving power. The Power Good signal for all installed power supplies has been received after Routing Engine initialization.
	Green	Blinking	The services gateway is in one of two states: Services gateway is receiving power and is in the process of booting up but has not yet initialized the Routing Engine. Services gateway is in the process of graceful shutdown.
	Amber	On steadily	One of the power supplies has failed, but the power available from the remaining power supplies is sufficient to power all the installed components.
	Red	On steadily	One or more of the power supplies have failed, and the power available from the remaining power supplies is not sufficient to power all the installed components.
	Dark (unlit)	Off	The services gateway is shut down.
FAN (bottom)	Green	On steadily	The cooling system is operating normally.
FAN (bottom)	Red	On steadily	The cooling system has failed (one or more fans in the fan tray are not operating normally).

Note: All SFB status LEDs remain unlit until Routing Engine initialization is complete. The PWR LED blinks green until Routing Engine initialization is complete, at which point the LED becomes solid green.

Table 10: Switch Fabric Board Front Panel Ports and Connectors

Panel Label	Description
RE CONSOLE 0	RJ-45 console port used to connect to the Routing Engine inserted in slot RE0.
RE CONSOLE 1	Unused.
AUX	Unused.
USB0 (top), USB1 (bottom)	Universal serial bus connectors that can be managed and accessed by the master Routing Engine.
RE ETHERNET 0	RJ-45 port used to manage the Routing Engine in slot RE0.
RE ETHERNET 1	Unused.
(On-board copper Ethernet ports)	Eight 10/100/1000 Ethernet over copper media ports. The ports use RJ-45 connectors and are numbered from 0-7, top to bottom, left to right.
(On-board fiber Ethernet ports)	Four Ethernet over fiber media ports. The ports use small form-factor connectors and are numbered 8-11 from left to right. Also supports copper SFPs.
BITSCLK0 (top), BITSCLK1 (bottom)	Unused.
CHASSIS CLUSTER CONTROL 0 (left), CHASSIS CLUSTER CONTROL 1 (right)	SFP high availability ports. CHASSIS CLUSTER CONTROL 0 connects to the control functions on the Routing Engine in slot RE0. CHASSIS CLUSTER CONTROL 1 connects to the SRX Clustering Module (SCM), if any, in slot RE1. Note: We strongly recommend the use of Juniper Networks SFP and XFP transceivers. We cannot guarantee correct operation if other transceivers are used. The transceiver type can be different in each port, as long as a supported part number is used.

SRX3400 Services Gateway Switch Fabric Board

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