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Timeout/Sluggishness 6 Start What are the specifics regarding timeout symptoms? Congestion Marginal Link 1 Insufficient BB-Credit 2 Use Marginal Link Troubleshooting Flowchart © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 6 © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 6
Timeout/Sluggishness – (cont’d) Label Analysis Commands with an “A” and Solve Commands with an “S”: 1 2 7 Congestion Related Commands/Tools portperfshow topologyshow urouteshow linkcost/lsdbshow porterrshow errshow/mqshow portstatsshow PerfMon & Scripts/API Fabric Watch spinfab BB-Credit Related Commands/Tools FC Analyzer portstatsshow portlogdump portcfgshow √ distance Check HBA configuration from its utility How can we solve these types of problems? © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 7 Localize Trunk Add ISLs Footnote 1: Look at TX/RX counters in porterrshow Footnote 2: Execute Performance Monitor (PM) commands at the command line and write scripts to chronologically capture this output. Footnote 3: Web Tools port stats can also be used to monitor Footnote 4: Look in portlogdump for LINK FAILURES (LF’s), LINK RESET’s (LR’s), and Timeouts (TMO’s) Footnote 5: BB_Credits can be changed using the configure command but all switches in the Fabric need to have the same BB_credit value Additionally check for long distance SAN implementations – Are long distance SAN’s (over 10km) being implemented without the Extended Fabric License? Check portcfgshow output for BB credit allocations related to long distance SAN implementations. © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 7
Page 1 and 2: Brocade ® 1 Product Training Diagn
Page 3 and 4: Troubleshooting - Divide and Conque
Page 5: Generic SAN Problem Possible Causes
Page 9 and 10: Segmented Fabric 9 Start What are t
Page 11 and 12: Port Configuration 11 Start What ar
Page 13 and 14: Missing Device Start 13 Does device
Page 15 and 16: Start at the Switch... Divide and C
Page 17 and 18: Brocade Support Department Procedur
Page 19 and 20: v3.1 supportshow 19 OS Fabric m
Page 21 and 22: v4.1 supportshow 21 OS Fabric m
Page 23 and 24: v4.1 supportshow (Cont’d) 23 Sys
Page 25 and 26: v3.x sw1:admin> diagshow Note: v4.x
Page 27 and 28: v3.x sw1:admin> portshow Note: v4.x
Page 29 and 30: portlog Entry Example 29 Port 6 D_I
Page 31 and 32: Telnet Interface Error Message Form
Page 33 and 34: v3.x Power-On Self-Test (POST) 33
Page 35 and 36: Hardware Diagnostic Tests For the F
Page 37 and 38: crossporttest Modes 37 With the s
Page 39 and 40: spinsilk 39 Full speed functi
Page 41 and 42: spinfab 41 Exercises E_Port connec
Page 43 and 44: loopporttest 43 Used to test NL_Po
Page 45 and 46: fporttest 45 Functional test of F
Page 47 and 48: porttest 47 Used to isolate proble
Page 49 and 50: v4.1:admin> porttest Command Exampl
Page 51 and 52: Probably Failing Modules, Cont. 51
Page 53 and 54: Review Questions 1. Trunking proble

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