Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX[1] ↑ https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-0_2_EX/security/configuration_guide/b_sec_152ex_2960-x_cg/b_sec_152ex_2960-x_cg_chapter_0110.html