: Denotes the "feature set." In Cisco terminology, w7 signifies Autonomous (胖, "Fat") software, which allows the access point to operate independently without a wireless controller. This is contrasted with k9w8 , which is for Lightweight (瘦, "Thin") mode.
Here’s why this keyword is problematic for a legitimate article: C1130-k9w7-tar.124-3g.JA1.tar
To understand the function of this archive, one must deconstruct the file naming convention used by Cisco: : Denotes the "feature set
The k9w7 designation indicates the Autonomous IOS . In contrast, k9w8 or rcvk9w8 images are used for "Lightweight" mode, which requires a controller for management. w7 signifies Autonomous (胖