BROCADE IP PRIMER

Chapter 6: The Brocade CLI• show mac-address — Displays the switch's MAC address table• show mac-address stat — Displays a table that shows the number of MACaddresses the switch has learned on each interface• show media — Displays the physical media type of each interface of theswitch; “C” means an integrated copper Ethernet port; “M-SX” means thisinterface has a mini-GBIC that is multimode (SX) fiber; “M-LX” means thisinterface has a mini-GBIC that is single mode (LX) fiber; “M-TX” meansthis interface has a mini-GBIC that is a copper Ethernet interface• show arp — Displays the ARP table; this will show all of the IP address/MAC address matchings that the switch currently knows about; it willmatch each entry with the physical interface it was learned on• show logging — Displays the switches log• show flash — Displays the file contents of primary, secondary, and bootmonitorflash• show vlan — Displays information pertaining to configured VLANs• show telnet — Displays active Telnet sessions into the switch, includingthe source IP address of each session• show trunk — Displays information about configured trunks (seeChapter 7)• show tech-support — Displays most information a Brocade TAC engineerwould need to troubleshoot problems on your switchThis last one deserves a little more discussion. You might remember readingabout it in Chapter 1. It is more commonly referred to as “show tech.” This isactually a combination of several “show” commands. It is a culmination of allrelevant information that a Brocade TAC engineer would need to help you solveyour problem (or at least start the diagnosis). For many troubleshooting cases,you may want to collect the output of this command before you even open thecase with Brocade TAC. Odds are they will request it anyway. To collect the output,you can either save the log of your session (see the documentation of yourterminal program), or you may be able to copy and paste the output into ablank text file. Either way, the end result should be a text file containing theoutput of the command. It is this file that Brocade TAC will be interested in. Youcan upload this file to your case using the Brocade web site (http://www.brocade.com/).132 Brocade IP Primer