Routing Engine And Control Redundancy; Slot Numbering For An Ex6210 Switch; Slot Numbering For Sre Module Slots And Line Card Slots; Table 7: Routing Engine And Control Redundancy For Ex6210 Switches - Juniper EX6210 Complete Hardware Manual

Complete Hardware Guide for EX6210 Ethernet Switches

Routing Engine and Control Redundancy

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Slot Numbering for an EX6210 Switch

Slot Numbering for SRE Module Slots and Line Card Slots

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The fans in the fan tray continue to operate indefinitely and provide sufficient cooling
even when a single fan fails provided the room temperature is within the operating
range. See "Cooling System and Airflow in an EX6210 Switch" on page
Each SRE module contains switch fabric circuitry, Routing Engine circuitry, and switch
control and management circuitry. An EX6210 switch can have one or two SRE modules.
If the switch has two SRE modules, one functions as the master while the other functions
as a backup. This provides the switch with full redundancy (1+1) for Routing Engine, and
switch control functionality. The switch fabric circuitry on the backup SRE module is
active; this allows the ports on the switch to operate at wire speed. You can also use the
uplink ports on the backup SRE module.
Table 7 on page 12 shows the available slots in the EX6210 chassis and the Routing
Engine and control redundancy associated with different SRE module combinations.

Table 7: Routing Engine and Control Redundancy for EX6210 Switches

Slot 4 Slot 5
SRE module Empty
Empty SRE module
SRE module SRE module
Switch Fabric and Routing Engine (SRE) Module in an EX6200 Switch on page 26
An EX6210 chassis has:
10 horizontal slots on the chassis front—eight slots that accept line cards only and two
slots that accept either the Switch Fabric and Routing Engine (SRE) modules or line
cards
Four power supply slots on chassis front bottom
One vertical fan tray slot on the chassis rear
This topic describes:
Slot Numbering for SRE Module Slots and Line Card Slots on page 12
Slot Numbering for the Power Supply Slots on page 14
Table 8 on page 13 lists the slot numbers on the EX6210 chassis and the components
those slots accept.
Routing Engine and Control Redundancy
No
No
Yes
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