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SRX-MP-1SFP and SRX-MP-1SFP-GE mPIMs are both 1-port SFP GE mPIMs for SRX2xx platforms. What are the differences between them?

This applies to the following models/part numbers.

• SRX-MP-1SFP / 750-029145
• SRX-MP-1SFP-GE / 750-032730

SRX mPIMs are applicable to the following platforms.

• SRX210
• SRX220
• SRX240

The SRX-MP-1SFP-GE is meant to replace the original SRX-MP-1SFP mPIMs. Both can support the same SFP optic modules. Below are some of the differences between the two models.

• Supported since Junos OS 9.5
• Supported on SRX210 and SRX240, not supported on SRX220
• Cannot be used as member of reth interface in a chassis cluster
• No jumbo frame support
• Limited to 100Mbps due to limitation of port connection to backplane
• Cannot be used for fabric link in a chassis cluster

• Supported since Junos OS 10.4
• Supported on SRX210, SRX220 and SRX240
• Can be used as member of reth interface in a Chassis Cluster
• Supports jumbo frames up to MTU 9010 bytes
• GE backplane connection to allow near 1GB line rate
• For SRX Series Chassis Clusters made up of SRX100, SRX210, SRX220, SRX240 devices, SFP interfaces on Mini-PIMs cannot be used as the fabric link.