11.2P is not a superset of 11.1CC. Check out the IOS roadmap for a depiction of the evolution of IOS: http://www.cisco.com/warp/customer/620/roadmap.shtml The first place 11.2 and 11.1CC come together is 12.0. Since the commands you're looking for appear to be added in 11.1CC, your downstream probably needs to run 12.0. S | | Stephen Sprunk, K5SSS, CCIE #3723 :|: :|: NSA, Network Consulting Engineer :|||: :|||: 14875 Landmark Blvd #400; Dallas, TX .:|||||||:..:|||||||:. Pager: 800-365-4578 / 800-901-6078 C I S C O S Y S T E M S Email: ssprunk@cisco.com ----- Original Message ----- From: John M. Brown To: nanog@merit.edu Sent: Sunday, February 20, 2000 14:11 Subject: missing commands in Cisco IOS So I am trying to help a downstream ISP get BGP up and running. It seems that prefix-list and peer shutdown functions don't exist on there rev. The strange thing is that their rev is newer than mine. me 7206 IOS 11.1-19(CC) them 3640 c3640-i-mz.112-18.P is the flash image So what ver should they tell there vendor to get them ??