Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 16

Fabric Manager Tools and CLI Commands
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
Command
ethanalyzer local sniff-interface
ethanalyzer local sniff-interface brief
ethanalyzer local sniff-interface
limit-captured-frames
ethanalyzer local sniff-interface limit-frame-size
ethanalyzer local sniff-interface capture-filter
ethanalyzer local sniff-interface display-filter
ethanalyzer local sniff-interface decode-internal
ethanalyzer local sniff-interface write
ethanalyzer local sniff-interface read
Examples
switch# ethanalyzer local sniff-interface
No matches in current mode, matching in (exec) mode
inbound-hi
inbound-low
mgmt
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
[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
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
[snip]
Cisco Nexus 5000 Series Troubleshooting Guide
1-8
Inbound(high priority) interface
Inbound(low priority) interface
Management interface
Cost = 57 Port = 0x801d
Chapter 1
Description
Captures packets sent or received by the
supervisor and provides detailed protocol
information.
Captures packets sent or received by the
supervisor and provides a summary of protocol
information.
Limits the number of frames to capture.
Limits the length of the frame to capture.
Filters the types of packets to capture.
Filters the types of captured packets to display.
Decodes the internal frame header for Cisco
NX-OS.
Do not use this option if you plan to
Note
analyze the data using Wireshark instead
of NX-OS Ethanalyzer.
Saves the captured data to a file.
Opens the captured data file and analyzes it.
Cost = 0
Cost = 0
Troubleshooting Overview
Port = 0x8093
Port = 0x8093
OL-25300-01