Description

The Juniper Networks SRX4600 supports multiple flexible port-speed combinations on FPC1, including 10GE, 40GE, and 100GE interfaces. By default, the system initializes with 4x40GE and 8x10GE interfaces. Customers can reconfigure the chassis to enable other supported combinations such as 4x100GE to meet deployment and throughput requirements.


Any change to FPC1 port modes requires an explicit chassis configuration change and a system or cluster reboot for the changes to take effect.


This is an informational knowledge base article describing supported configurations.

Solution

Supported Port Speed Combinations :

- 24x10GE

- 8x10GE

- 4x40GE

- 2x100GE

- 2x100GE + 2x40GE

- 4x100GE

- 8x10GE + 4x40GE

- 8x10GE + 2x100GE

- 8x10GE + 2x100GE + 2x40GE

- 4x10GE + 2x100GE


NOTE: After committing any configuration shown below, a system or cluster reboot is required.


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1) 24x10GE Configuration

set chassis fpc 1 pic 0 pic-mode 10G


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2) 8x10GE Configuration

set chassis fpc 1 pic 0 number-of-ports 0


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3) 4x40GE Configuration

set chassis fpc 1 pic 1 number-of-ports 0


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4) 2x100GE Configuration (PIC-level)

set chassis fpc 1 pic 0 pic-mode 100G

set chassis fpc 1 pic 0 number-of-ports 2

set chassis fpc 1 pic 1 number-of-ports 0


OR (Port-level)

set chassis fpc 1 pic 0 port 0 speed 100g

set chassis fpc 1 pic 0 port 1 speed 100g

set chassis fpc 1 pic 1 number-of-ports 0


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5) 2x100GE + 2x40GE Configuration

set chassis fpc 1 pic 0 port 0 speed 100g

set chassis fpc 1 pic 0 port 1 speed 100g

set chassis fpc 1 pic 0 port 2 speed 40g

set chassis fpc 1 pic 0 port 3 speed 40g

set chassis fpc 1 pic 1 number-of-ports 0


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6) 4x100GE Configuration

set chassis fpc 1 pic 0 pic-mode 100G

set chassis fpc 1 pic 1 number-of-ports 0


OR


set chassis fpc 1 pic 0 port 0 speed 100g

set chassis fpc 1 pic 0 port 1 speed 100g

set chassis fpc 1 pic 0 port 2 speed 100g

set chassis fpc 1 pic 0 port 3 speed 100g

set chassis fpc 1 pic 1 number-of-ports 0


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7) 8x10GE + 4x40GE Configuration

No configuration required (default behavior).


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8) 8x10GE + 2x100GE Configuration

set chassis fpc 1 pic 0 pic-mode 100G

set chassis fpc 1 pic 0 number-of-ports 2


OR


set chassis fpc 1 pic 0 port 0 speed 100g

set chassis fpc 1 pic 0 port 1 speed 100g

set chassis fpc 1 pic 1 port 0 speed 10g

set chassis fpc 1 pic 1 port 1 speed 10g

set chassis fpc 1 pic 1 port 2 speed 10g

set chassis fpc 1 pic 1 port 3 speed 10g

set chassis fpc 1 pic 1 port 4 speed 10g

set chassis fpc 1 pic 1 port 5 speed 10g

set chassis fpc 1 pic 1 port 6 speed 10g

set chassis fpc 1 pic 1 port 7 speed 10g


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9) 8x10GE + 2x100GE + 2x40GE Configuration

set chassis fpc 1 pic 0 port 0 speed 100g

set chassis fpc 1 pic 0 port 1 speed 100g

set chassis fpc 1 pic 0 port 2 speed 40g

set chassis fpc 1 pic 0 port 3 speed 40g

set chassis fpc 1 pic 1 port 0 speed 10g

set chassis fpc 1 pic 1 port 1 speed 10g

set chassis fpc 1 pic 1 port 2 speed 10g

set chassis fpc 1 pic 1 port 3 speed 10g

set chassis fpc 1 pic 1 port 4 speed 10g

set chassis fpc 1 pic 1 port 5 speed 10g

set chassis fpc 1 pic 1 port 6 speed 10g

set chassis fpc 1 pic 1 port 7 speed 10g


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10) 4x10GE + 2x100GE Configuration

set chassis fpc 1 pic 0 pic-mode 100G

set chassis fpc 1 pic 0 number-of-ports 2

set chassis fpc 1 pic 1 number-of-ports 4

Modification History

2026-04-03 : Article Created