If an Industrial Ethernet switch is required it may be productive to look at Ruggedcom products. Ruggedcom has a published upper operating range of +85 C, which we have deployed in outside non-HVAC enclosures in environments where the outside ambient temperature can reach +49 to +55 C for extended periods. The L2 software is reliable, supporting rapid spanning tree, and IGMP snooping, among other features. Short and Long range SFP optics (up to 80 Km) are available that are also spec'd out at +85 C operating range. -----Original Message----- From: Paul Wall [mailto:pauldotwall@gmail.com] Sent: Monday, January 05, 2009 9:27 PM To: NANOG list Subject: Hirschmann Switches? I'm looking for feedback from users of the Hirschmann (Belden) ethernet switches in a service provider environment. Private or public appreciated. Drive Slow, Paul Wall