Please note that the Steelhead xx50 have reached End of Support. These devices are not eligible for a Support Contract renewal and no Support will be provided.
To summarize the model versions and EOS dates:
Dec 31, 2017 : SteelHead 550, 1050
Jun 30, 2018 : SteelHead 2050, 5050, 6050, 7050
Dec 31, 2018 : SteelHead 150,250
If you are interested in refreshing your hardware, please contact your local partner and/or sales team to purchase new, supportable appliances.
Additional information about Riverbed's Hardware & Software End of Life Policy is located on this site EOS/EOL