tonegotiation status, and the port type. In the first edition of this book, I wrote the following bit of know- it-all goodness: IOS has nothing that directly compares to this command. Instead, the user must piece together the information from multiple sources. Chapter 17: Cisco 6500 Multilayer Switches Of all the errata, comments, and feedback I got, this line triggered the biggest response. Readers pointed out that the show interface status IOS command looked a whole lot like the CatOS show port command. When I got the first such comment, I fired up my lab and typed out the command. Imagine my surprise when, after 25 years of hard time in the industry, I learned of this wonderful command. The better lesson is to never write in absolutes, for they will surely come back to haunt you. Thank you to all of you who pointed this out to me: 3750-IOS#sho int status Status Duplex Speed Type Gi1/0/1 Cozy-Server notconnect auto auto 10/100/1000BaseTX Gi1/0/2 Daisy-Server notconnect auto auto 10/100/1000BaseTX Gi1/0/3 Annie-Server notconnect auto auto 10/100/1000BaseTX Gi1/0/4 Guinness-Server disabled auto 10/100/1000BaseTX Gi1/0/5 notconnect auto 10/100/1000BaseTX Gi1/0/6 notconnect auto 10/100/1000BaseTX Gi1/0/7 notconnect auto 10/100/1000BaseTX Gi1/0/8 notconnect auto 10/100/1000BaseTX Gi1/0/9 notconnect 1 auto 10/100/1000BaseTX Gi1/0/10 notconnect auto 10/100/1000BaseTX Gi1/0/11 notconnect 1 auto 10/100/1000BaseTX --More-- I'll still include one of my most-used commands for gathering information, though, since it includes IP addresses: Switch-IOS#sho ip int brief Interface IP-Address OK? Method Status Protocol Vlan1 unassigned YES NVRAM administratively down down Vlan20 10.10.20.2 YES manual up Vlan40 10.10.40.2 YES manual up Vlan50 10.10.50.2 YES manual up GigabitEthernet1/1 unassigned YES unset up GigabitEthernet1/2 unassigned YES unset up GigabitEthernet1/3 unassigned YES unset up GigabitEthernet1/4 unassigned YES unset IOS tends to be a bit wordy. For example, the output of the IOS show interface inter face# command,