Cisco IOS image naming convention

The IOS image names include the following components:-

platform-featureset-tar.version.tar platform- the access point hardware model or family supported by the image

ap1g2 - 1600 series ap3g2 - 3600/2600 series ap3g1 - 3500/1260 series ap802 - AP embedded in 819, 812, 886VA-W/887VA-W, C88x and C88x routers ap801 - AP embedded in 861W, most 88xW, and 1911W routers c1520 - 1550 and 1520 series mesh APs c1310 - BR1310 c1250 - 1250 series APs c1240 - 1240 series APs c1200 - 1200 series (1200/1210/1220/1230) c1140 - 1140 and 1040 series APs c1130 - 1130 series APs c1100 - 1100 series APs (i.e. the AP1121) c520 - 521 AP c350 - 350 series APs featureset- the set of software features supported by the image - one of: k9w7 - autonomous (or "site survey") IOS k9w8 - full lightweight IOS (this is what is bundled in the WLC .aes image, and is factory installed on "mesh" APs) rcvk9w8 - lightweight recovery image - this is factory installed on lightweight APs, unless a "mesh" image is specified; it lacks radio firmware boot - bootloader image (not IOS) - normally installed by manufacturing and not updated in the field version- the IOS version There is a 1:1 mapping between the lightweight IOS software version (such as 12.4(23c)JA) and the CUWN version (such as 7.0.98.0) see the Wireless Solutions Software Compatibility Matrix on CCO

Example:-

c1240-k9w7-tar.124-25d.JA1.tar Platform: c1240: 1240 series AP Featureset: k9w7: autonomous IOS Version: 124-25d.JA1: 12.4(25d)JA1