: This is a "universal" image that contains all features. Access to specific feature sets (like Security, Data, or Unified Communications) is typically enabled via software licenses (PAK keys). The "k9" indicates it supports strong payload encryption (3DES/AES). mz : This means the image runs from RAM and is compressed.
: Support for SNMPv3, SSH, and Cisco Prime Infrastructure. c1900universalk9mzspa1583m7bin hot
for the Cisco 1900 series Integrated Services Routers (ISR). Google Play Image Specifications : Cisco 1900 Series Routers (e.g., 1921, 1941) Feature Set universalk9 : This is a "universal" image that contains all features
: Designed specifically for the Cisco 1900 Series routers. c1900universalk9mzspa1583m7bin hot