Cisco N5K-C5010P-BF Troubleshooting Guide - Page 16

Command, Description, Ctrl-C

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Fabric Manager Tools and CLI Commands Chapter 1 Troubleshooting Overview Send document comments to [email protected]. Command Description ethanalyzer local sniff-interface Captures packets sent or received by the supervisor and provides detailed protocol information. ethanalyzer local sniff-interface brief Captures packets sent or received by the supervisor and provides a summary of protocol information. ethanalyzer local sniff-interface limit-captured-frames Limits the number of frames to capture. ethanalyzer local sniff-interface limit-frame-size Limits the length of the frame to capture. ethanalyzer local sniff-interface capture-filter Filters the types of packets to capture. ethanalyzer local sniff-interface display-filter Filters the types of captured packets to display. ethanalyzer local sniff-interface decode-internal Decodes the internal frame header for Cisco NX-OS. Note Do not use this option if you plan to analyze the data using Wireshark instead of NX-OS Ethanalyzer. ethanalyzer local sniff-interface write Saves the captured data to a file. ethanalyzer local sniff-interface read Opens the captured data file and analyzes it. Examples switch# ethanalyzer local sniff-interface No matches in current mode, matching in (exec) mode inbound-hi Inbound(high priority) interface inbound-low Inbound(low priority) interface mgmt Management interface switch# ethanalyzer local sniff-interface mgmt brief Capturing on eth0 2008-08-13 01:34:23.776519 10.116.167.244 -> 172.18.217.80 TCP 1106 > telnet [ACK] Seq=0 Ack=0 Win=64040 Len=0 2008-08-13 01:34:23.777752 172.18.217.80 -> 10.116.167.244 TELNET Telnet Data ... 2008-08-13 01:34:23.966262 00:04:dd:2f:75:10 -> 01:80:c2:00:00:00 STP Conf. Root = 32768/00:04:c1:0f:6e:c0 Cost = 57 Port = 0x801d [snip] The following example is for viewing the Spanning Tree Protocol (STP) and Fibre Channel: Using 0 in the command captures output until you press Ctrl-C. The FCID is a well-known name for switch domain controller. switch# ethanalyzer local sniff-interface inbound-hi brief limit-captured-frames 0 Capturing on eth4 2008-08-13 01:37:16.639896 00:0d:ec:6b:cd:41 -> 01:80:c2:00:00:00 1 0 00:0d:ec:6b:cd:41 -> 01:80:c2:00:00:00 0x0 0x0 STP RST. Root = 32769/00:0d:ec:6b:cd:41 Cost = 0 Port = 0x8093 2008-08-13 01:37:18.639992 00:0d:ec:6b:cd:41 -> 01:80:c2:00:00:00 1 0 00:0d:ec:6b:cd:41 -> 01:80:c2:00:00:00 0x0 0x0 STP RST. Root = 32769/00:0d:ec:6b:cd:41 Cost = 0 Port = 0x8093 [snip] Cisco Nexus 5000 Series Troubleshooting Guide 1-8 OL-25300-01

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Send document comments to [email protected].
1-8
Cisco Nexus 5000 Series Troubleshooting Guide
OL-25300-01
Chapter 1
Troubleshooting Overview
Fabric Manager Tools and CLI Commands
Examples
switch# ethanalyzer local sniff-interface
No matches in current mode, matching in (exec) mode
inbound-hi
Inbound(high priority) interface
inbound-low
Inbound(low priority) interface
mgmt
Management interface
switch# ethanalyzer local sniff-interface mgmt brief
Capturing on eth0
2008-08-13 01:34:23.776519 10.116.167.244 -> 172.18.217.80 TCP 1106 > telnet [ACK] Seq=0
Ack=0 Win=64040 Len=0
2008-08-13 01:34:23.777752 172.18.217.80 -> 10.116.167.244 TELNET Telnet Data ...
2008-08-13 01:34:23.966262 00:04:dd:2f:75:10 -> 01:80:c2:00:00:00 STP Conf. Root =
32768/00:04:c1:0f:6e:c0
Cost = 57
Port = 0x801d
[snip]
The following example is for viewing the Spanning Tree Protocol (STP) and Fibre Channel: Using 0 in
the command captures output until you press
Ctrl-C
. The FCID is a well-known name for switch
domain controller.
switch# ethanalyzer local sniff-interface inbound-hi brief limit-captured-frames 0
Capturing on eth4
2008-08-13 01:37:16.639896 00:0d:ec:6b:cd:41 -> 01:80:c2:00:00:00 1 0 00:0d:ec:6b:cd:41 ->
01:80:c2:00:00:00 0x0 0x0 STP RST. Root = 32769/00:0d:ec:6b:cd:41
Cost = 0
Port = 0x8093
2008-08-13 01:37:18.639992 00:0d:ec:6b:cd:41 -> 01:80:c2:00:00:00 1 0 00:0d:ec:6b:cd:41 ->
01:80:c2:00:00:00 0x0 0x0 STP RST. Root = 32769/00:0d:ec:6b:cd:41
Cost = 0
Port = 0x8093
[snip]
Command
Description
ethanalyzer local sniff-interface
Captures packets sent or received by the
supervisor and provides detailed protocol
information.
ethanalyzer local sniff-interface brief
Captures packets sent or received by the
supervisor and provides a summary of protocol
information.
ethanalyzer local sniff-interface
limit-captured-frames
Limits the number of frames to capture.
ethanalyzer local sniff-interface limit-frame-size
Limits the length of the frame to capture.
ethanalyzer local sniff-interface capture-filter
Filters the types of packets to capture.
ethanalyzer local sniff-interface display-filter
Filters the types of captured packets to display.
ethanalyzer local sniff-interface decode-internal
Decodes the internal frame header for Cisco
NX-OS.
Note
Do not use this option if you plan to
analyze the data using Wireshark instead
of NX-OS Ethanalyzer.
ethanalyzer local sniff-interface write
Saves the captured data to a file.
ethanalyzer local sniff-interface read
Opens the captured data file and analyzes it.