Technical Tip: 10G-SR SFP modules supports only multimode fibers for the links to come up

[mrudhramurthi]

Description	This article describes that 10G-SR SFP modules will not come up when using single-mode fiber.
Scope	FortiSwitches.
Solution	10G-SR SFP modules connected to FortiSwitches support, only multimode fibers for the links to come up, and forward traffic is expected. Vice Versa, For single mode fiber, it will use 10G LR SFP. The 10G SFP+SR modules include: FTLX8571D3BCL. FTLX8571D3BCV. FTLX8574D3BCL. FTLX8574D3BCLFTN. Troubleshooting commands: get switch modules summary port# get switch modules limits port# get switch module status port# If the port is still not coming up after using multi-mode fibers, contact the Fortinet TAC Related document: https://fortinetweb.s3.amazonaws.com/docs.fortinet.com/v2/attachments/e867c8f4-202f-11e9-b6f6-f8bc12... Transceiver type and Fiber type reference:  https://www.fortinet.com/content/dam/fortinet/assets/data-sheets/Fortinet_Transceivers.pdf