go to interfacepower inline autothat will turn it back onexample of one I just did: IDF_SW2.1(config-if)#int g4/0/41 ​‌IDF_SW2.1(config-if)#power inline never IDF_SW2.1(config-if)#power inline auto

I read this in an ebook:Although subnet masks are displayed as dotted decimals, the format can be changed on Cisco routers to bit count or hex with the 'ip netmask-format bit' command... Router# terminal ip netmask-format ?bit-count          Display ...