Cisco MDS-9124 Troubleshooting Guide - Page 542

Using Cisco Network Management Products Appendix B Troubleshooting Tools and Methodology Send documentation comments to [email protected] The Ethereal application allows remote access to Fibre Channel control traffic and does not require a Fibre Channel connection on the remote workstation. The Cisco Fabric Analyzer lets you capture and decode Fibre Channel traffic remotely over Ethernet. It captures Fibre Channel traffic, encapsulates it in TCP/IP, and transports it over an Ethernet network to the remote client. The remote client then deencapsulates and fully decodes the Fibre Channel frames. This capability provides flexibility for troubleshooting problems in remote locations. The Cisco Fabric Analyzer captures and analyzes control traffic coming to the Supervisor Card. This tool is much more effective than the debug facility for packet trace and traffic analysis, because it is not very CPU intensive and it provides a graphic interface for easy analysis and decoding of the captured traffic. switch# config terminal switch(config)# fcanalyzer local brief Capturing on eth2 0.000000 ff.ff.fd -> ff.ff.fd SW_ILS 1 0.000089 ff.ff.fd -> ff.ff.fd FC 1 1.991615 ff.ff.fd -> ff.ff.fd SW_ILS 1 1.992024 ff.ff.fd -> ff.ff.fd FC 1 0x59b7 0xffff 0x7 -> 0x59b7 0x59c9 0xff -> 0x59ca 0xffff 0xff -> 0x59ca 0x59b8 0x7 -> 0xf HLO 0x0 Link Ctl, ACK1 0x0 HLO 0xf Link Ctl, ACK1 fcanalyer example of fully decoded frame. switch2(config)# fcanalyzer local Capturing on eth2 Frame 1 (96 bytes on wire, 96 bytes captured) Arrival Time Jan 13, 2003 135038.787671000 Time delta from previous packet 0.000000000 seconds Time relative to first packet 0.000000000 seconds Frame Number 1 Packet Length 96 bytes Capture Length 96 bytes Ethernet II, Src 00000000000a, Dst 00000000ee00 Destination 00000000ee00 (00000000ee00) Source 00000000000a (00000000000a) Type Vegas FC Frame Transport (0xfcfc) MDS Header(SOFf/EOFn) MDS Header Packet Len 66 .... 0000 0001 11.. = Dst Index 0x0007 .... ..00 1111 1111 = Src Index 0x00ff .... 0000 0000 0001 = VSAN 1 MDS Trailer EOF EOFn (3) Fibre Channel R_CTL 0x02 Dest Addr ff.fc.7e CS_CTL 0x00 Src Addr ff.fc.7f Type SW_ILS (0x22) F_CTL 0x290000 (Exchange Originator, Seq Initiator, Exchg First, Seq Last, CS_CTL, Transfer Seq Initiative, Last Data Frame - No Info, ABTS - Abort/MS, ) SEQ_ID 0x11 DF_CTL 0x00 SEQ_CNT 0 OX_ID 0x5a06 RX_ID 0x0000 Parameter 0x00000000 SW_ILS Cmd Code SW_RSCN (0x1b) 0010 .... = Event Type Port is offline (2) .... 0000 = Address Format Port Addr Format (0) Affected Port ID 7f.00.01 Detection Function Fabric Detected (0x00000001) Num Entries 1 B-26 Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x OL-9285-05