This article will guide you through identifying and differentiating the three main types of Routing Engines available for the SRX5000 series using the Junos CLI.
1. First Generation: SRX5K RE-13-20 (Commonly Known as RE1) - The first generation of Routing Engines for the SRX5000 series is commonly referred to as RE1
The SRX5K-RE-13-20 Routing Engine is an Intel-based PC platform that runs the Junos operating system (Junos OS). Software processes that run on the Routing Engine maintain the routing tables, manage the routing protocols used on the device, control the device interfaces, control some chassis components, and provide the interface for system management and user access to the device.
root@jtac-srx5400-RE1> show chassis hardware extensive
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Routing Engine 0 REV 08 740-023530 9009060109 SRX5k RE-13-20Jedec Code: 0x7fb0 EEPROM Version: 0x01P/N: 740-023530 S/N: 9009060109Assembly ID: 0x0971 Assembly Version: 01.08Date: 255-255-65535 Assembly Flags: 0x00Version: REV 08ID: SRX5k RE-13-20 FRU Model Number: SRX5K-RE-13-20-A
2. Second Generation: SRX5K RE-1800X4 (Commonly Known as RE2) - The second-generation Routing Engine, referred to as RE2, brings significant performance improvements over RE1, including better scalability and higher control plane capacity.The enhanced Routing Engine is an Intel-based PC platform that runs Junos OS. Software processes that run on the Routing Engine maintain the routing tables, manage the routing protocols used on the device, control the device interfaces, control some chassis components, and provide the interface for system management and user access to the device.The Routing Engine must be installed directly into the SRX5K-SCBE.
root@jtac-srx5400-RE2> show chassis hardware extensive..............Routing Engine 0 REV 07 740-056658 9016338784 SRX5k RE-1800X4Jedec Code: 0x7fb0 EEPROM Version: 0x02P/N: 740-056658 S/N: 9016338784Assembly ID: 0x0c1a Assembly Version: 01.07Date: 10-30-2020 Assembly Flags: 0x00Version: REV 07 CLEI Code: COUCATTBAEID: SRX5k RE-1800X4 FRU Model Number: SRX5K-RE-1800X4
3. Third Generation: SRX5K-RE3-128G (Commonly Known as RE3) - This is the latest and most advanced Routing Engine for SRX5000 series devices
SRX5K-RE3-128GSRX5K-RE3-128G is Routing Engine for SRX5400, SRX5600, and SRX5800 Services Gateways, based on Intel’s Haswell-EP CPU with 6 cores, and 128G of DDR4 memory. It provides increased control plane performance and scalability along with virtualization features in SRX5K chassis
root@jtac-srx5400-RE3> show chassis hardware extensive
Routing Engine 0 REV 08 750-095568 EAAG9154 SRX5k RE-2000x6Jedec Code: 0x7fb0 EEPROM Version: 0x02P/N: 750-095568 S/N: EAAG9154Assembly ID: 0x0c94 Assembly Version: 01.08Date: 12-14-2022 Assembly Flags: 0x00Version: REV 08 CLEI Code: CMUCAMHCABID: SRX5k RE-2000x6 FRU Model Number: SRX5K-RE3-128G