This is a brand name requirement and the Government requires 180 Cisco 1000Mbps Multi-Mode Rugged SFPs GLC-SX-MM-RGD.This post is pending an attachment update on 21 September, which will update Attach... This is a brand name requirement and the Government requires 180 Cisco 1000Mbps Multi-Mode Rugged SFPs GLC-SX-MM-RGD.This post is pending an attachment update on 21 September, which will update Attachment 4: Provisions and Clauses.