HP 8/40 Fabric OS Administrator's Guide v6.4.0 (53-1001763-01, June 2010) - Page 434
Adding a Top Talker monitor on an F_Port
View all HP 8/40 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 434 highlights
17 Top Talker monitors The Top Talker monitor is based on SID/DID and not WWNs. Once Top Talker is installed on a switch or port, it remains installed across power cycles. Top Talkers supports two modes, port mode and fabric mode: • Port mode Top Talker A Top Talker monitor can be installed on an F_Port to measure the traffic originating from the F_Port and flowing to different destinations. • Fabric mode Top Talker In fabric mode, Top Talker monitors are installed on E_Ports in the fabric and measure the data rate of all the possible flows in the fabric (ingress E_Port traffic only). In fabric mode, Top Talker monitors can determine the top n bandwidth users on a given switch. You can install Top Talker monitors either in port mode or fabric mode, but not both. NOTE A fabric mode Top Talker monitor and an end-to-end monitor cannot be configured on the same fabric. You must delete the end-to-end monitor before you configure the fabric mode Top Talker. How do Top Talker monitors differ from end-to-end monitors? End-to-end monitors provide counter statistics for traffic flowing between a given SID-DID pair. Top Talker monitors identify all possible SID-DID flow combinations that are possible on a given port and provides a sorted output of the top talking flows. Also, if the number of flows exceeds the hardware resources, existing end-to-end monitors fail to get real time data for all of them; however, Top Talker monitors can monitor all flows for a given E_Port or F_Port. Virtual Fabric considerations: All logical switches in the same chassis can use either fabric mode Top Talker monitors or port mode Top Talker and end-to-end monitors. You cannot use fabric mode Top Talker monitors and end-to-end monitors together on the same logical switch. Admin Domain considerations: Top Talker monitors are always installed in AD255. NPIV considerations: Top Talker takes NPIV devices into consideration when calculating the top talking flows. Adding a Top Talker monitor on an F_Port 1. Connect to the switch and log in as admin. 2. Enter the perfTTmon --add command. perfttmon --add [egress | ingress] [slotnumber/]port For example, to monitor the incoming traffic on port 7: perfttmon --add ingress 7 To monitor the outgoing traffic on slot 2, port 4 on the Brocade 48000, Brocade DCX, or DCX-4S: perfttmon --add egress 2/4 Adding Top Talker monitors on all switches in the fabric (fabric mode) When fabric mode is enabled, you can no longer install Top Talker monitors on an F_Port unless you delete fabric mode. 394 Fabric OS Administrator's Guide 53-1001763-01