Brocade Communications Systems FastIron SX 800 User manual

53-1002965-01
30 September 2013
®
Brocade FastIron, FCX, ICX,
and TurboIron
Diagnostic Reference
Supporting FastIron Software Release 08.0.01

Copyright © 2013 Brocade Communications Systems, Inc. All Rights Reserved.
ADX, AnyIO, Brocade, Brocade Assurance, the B-wing symbol, DCX, Fabric OS, ICX, MLX, MyBrocade, OpenScript, VCS, VDX, and
Vyatta are registered trademarks, and HyperEdge, The Effortless Network, and The On-Demand Data Center are trademarks of
Brocade Communications Systems, Inc., in the United States and/or in other countries. Other brands, products, or service names
mentioned may be trademarks of their respective owners.
Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning
any equipment, equipment feature, or service offered or to be offered by Brocade. Brocade reserves the right to make changes to
this document at any time, without notice, and assumes no responsibility for its use. This informational document describes
features that may not be currently available. Contact a Brocade sales office for information on feature and product availability.
Export of technical data contained in this document may require an export license from the United States government.
The authors and Brocade Communications Systems, Inc. shall have no liability or responsibility to any person or entity with
respect to any loss, cost, liability, or damages arising from the information contained in this book or the computer programs that
accompany it.
The product described by this document may contain “open source” software covered by the GNU General Public License or other
open source license agreements. To find out which open source software is included in Brocade products, view the licensing
terms applicable to the open source software, and obtain a copy of the programming source code, please visit
http://www.brocade.com/support/oscd.
Brocade Communications Systems, Incorporated
Document History
Corporate and Latin American Headquarters
Brocade Communications Systems, Inc.
130 Holger Way
San Jose, CA 95134
Tel: [phone]
Fax: [phone]
E-mail: inf[email protected]
Asia-Pacific Headquarters
Brocade Communications Systems China HK, Ltd.
No. 1 Guanghua Road
Chao Yang District
Units 2718 and 2818
Beijing 100020, China
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
European Headquarters
Brocade Communications Switzerland Sàrl
Centre Swissair
Tour B - 4ème étage
29, Route de l'Aéroport
Case Postale 105
CH-1215 Genève 15
Switzerland
Tel: [phone]
Fax: [phone]
E-mail: emea-i[email protected]
Asia-Pacific Headquarters
Brocade Communications Systems Co., Ltd. (Shenzhen WFOE)
Citic Plaza
No. 233 Tian He Road North
Unit 1308 – 13th Floor
Guangzhou, China
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Title Publication number Summary of changes Date
Brocade FastIron, FCX, ICX, and
TurboIron Diagnostic Reference
53-1002645-01 Release 07.4.00 document
updated with
enhancements in Release
08.0.00.
April 2013
Brocade FastIron, FCX, ICX, and
TurboIron Diagnostic Reference
53-1002645-02 Release 08.0.00 document
updated for Release
08.0.00a.
June 2013
Brocade FastIron, FCX, ICX, and
TurboIron Diagnostic Reference
53-1002965-01 Release 08.0.00a
document updated for
Release 08.0.01.
September 2013

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53-1002965-01
Contents
About This Guide
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Supported Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Unsupported features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
What’s new in this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Text formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Command syntax conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Notes and caution notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Getting technical help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Document feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Chapter 1 Using Diagnostic Commands
Using debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Brief and detail debug options . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Generic debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Disabling debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2 System Level and Layer 1 Diagnostics
Layer 1 debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Hardware backplane debug command . . . . . . . . . . . . . . . . . . . . 5
Loop detect debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Port debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
System debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Software licensing debug command . . . . . . . . . . . . . . . . . . . . . . . . .12
Chapter 3 Layer 2 Diagnostics
STP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
RSTP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
MSTP debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DHCP debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
GVRP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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MAC address debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
MCT debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
MCT show commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Packet-capture debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Link aggregation debug commands . . . . . . . . . . . . . . . . . . . . . . . . . 47
Chapter 4 IP Diagnostics
ARP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
BGP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
DHCP snooping debug commands . . . . . . . . . . . . . . . . . . . . . . . . . .56
GRE debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
ICMP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
OSPF debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
RIP debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
NTP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Source Guard debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
SSH debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Synchronization debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . 77
TCP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
UDP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
VRRP and VRRP-E debug commands . . . . . . . . . . . . . . . . . . . . . . . . 81
Web debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Chapter 5 IPv6 Diagnostics
General IPv6 debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
IPv6 MLD debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
IPv6 OSPF debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
DHCPv6 debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
DHCPv6 show commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
IPv6 PIM debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
IPv6 RIP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Chapter 6 Multicast Diagnostics
MSDP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
IGMP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
IGMP snooping debug commands. . . . . . . . . . . . . . . . . . . . . . . . . .150
PIM debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
PIM-SM snooping debug commands. . . . . . . . . . . . . . . . . . . . . . . .164

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MLD snooping debug commands . . . . . . . . . . . . . . . . . . . . . . . . . .167
Chapter 7 Security Diagnostics
ACL debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
802.1x debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
MAC authentication debug commands . . . . . . . . . . . . . . . . . . . . . .172
sFlow debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
IP security debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Web events debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Web authentication debug commands . . . . . . . . . . . . . . . . . . . . . . 176
RA guard debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177
Chapter 8 supportsave Diagnostics
supportsave overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179
supportsave commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179
Limitations and pre-requisites . . . . . . . . . . . . . . . . . . . . . . . . .179
Recovery during continuous reload . . . . . . . . . . . . . . . . . . . . .183
Chapter 9 Technical Support Diagnostics
show tech-support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198
Diagnostic Command Index

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About This Guide
This chapter contains the following sections:
•Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
•Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
•Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
•What’s new in this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
•Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
•Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
•Getting technical help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
•Document feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Introduction
This guide describes many common diagnostic processes for the Brocade FastIron devices. Each
chapter contains diagnostic information about a specific segment of your network configuration.
Supported Hardware
•FastIron X Series devices (chassis models):
•Brocade FastIron SX 800
•FastIron SX 1600
•Brocade FCX Series (Brocade FCX) Stackable Switch
•Brocade ICX 6610 (ICX 6610) Stackable Switch
•Brocade ICX 6430 Series (ICX 6430)
•Brocade ICX 6450 Series (ICX 6450)
•Brocade ICX 6650 Series (ICX 6650)
•Brocade TurboIron 24X Series
For information about the specific models and modules supported in a product family, refer to the
hardware installation guide for that product family. “Related publications” on page x lists the
hardware installation guides and software configuration guides.
NOTE
The Brocade ICX 6430-C switch supports the same feature set as the Brocade ICX 6430 switch
unless otherwise noted.

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NOTE
The Brocade ICX 6450-C12-PD switch supports the same feature set as the Brocade ICX 6450
switch unless otherwise noted.
NOTE
Some debug commands report information about internal hardware settings and registers that is
relevant primarily to the Brocade engineering staff. Consequently, this information is not described
in this document.
Unsupported features
Features that are not documented in “Related publications” on page x are not supported.
Audience
This document is designed for network engineers with a working knowledge of Layer 2 and Layer 3
switching and routing.
If you are using a Brocade Layer 3 switch, you should be familiar with the following protocols if
applicable to your network – IP, RIP, OSPF, BGP, ISIS, IGMP, PIM, DVMRP, and VRRP.
Disclaimer
This manual is provided without any warranty of any kind, expressed or implied. When using this
manual to troubleshoot Brocade products, you assume all risk as to the quality and performance of
the debug procedures. Brocade assumes no liability for any damages, including general, special,
incidental, or consequential damages arising from the use of the procedures in this manual
(including, but not limited to any loss of profit or savings, loss of data, or failure to successfully
troubleshoot network problems).
Debug information may be changed or updated without notice. You are responsible for obtaining
newer versions of this manual when they are made available. The procedures in this document are
not intended as a substitute for the expertise of qualified technicians.
Enabling debug commands can seriously degrade system performance. Debug commands are
generally intended for use when troubleshooting specific problems while working with qualified
service technicians, or in conjunction with calls to Brocade Technical Support. Whenever possible,
troubleshoot your system during periods of low network traffic and user activity to preserve system
performance.
If you have any questions regarding this disclaimer please contact us at
http://www.brocade.com/products/all/routers/index.page.
What’s new in this document
There are no enhancements for FastIron release 08.0.01.

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Document conventions
This section describes text formatting conventions and important notice formats used in this
document.
Text formatting
The narrative-text formatting conventions that are used are as follows:
For readability, command names in the narrative portions of this guide are presented in mixed
lettercase: for example, switchShow. In actual examples, command lettercase is all lowercase.
Command syntax conventions
Command syntax in this manual follows these conventions:
Notes and caution notices
The following notices and statements are used in this manual. They are listed below in order of
increasing severity of potential hazards.
NOTE
A note provides a tip, guidance, or advice, emphasizes important information, or provides a
reference to related information.
ATTENTION
An Attention statement indicates potential damage to hardware or data.
bold text Identifies command names
Identifies the names of user-manipulated GUI elements
Identifies keywords
Identifies text to enter at the GUI or CLI
italic text Provides emphasis
Identifies variables
Identifies document titles
code text Identifies CLI output
command and
parameters
Commands and parameters are printed in bold.
[ ] Optional parameter.
variable Variables are printed in italics.
... Repeat the previous element, for example “member[;member...]”
| Choose from one of the parameters.

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53-1002965-01
CAUTION
A Caution statement alerts you to situations that can be potentially hazardous to you or cause
damage to hardware, firmware, software, or data.
Related publications
The following Brocade documents supplement the information in this guide and can be located at
http://www.brocade.com/ethernetproducts.
•FastIron Ethernet Switch Administration Guide, 08.0.01
•FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide, 08.0.01
•FastIron Ethernet Switch Layer 3 Routing Configuration Guide, 08.0.01
•FastIron Ethernet Switch IP Multicast Configuration Guide, 08.0.01
•FastIron Ethernet Switch Security Configuration Guide, 08.0.01
•FastIron Ethernet Switch Software Upgrade Guide, 08.0.01
•FastIron Switch Stacking Configuration Guide, 08.0.01
•FastIron Ethernet Switch Traffic Management Guide, 08.0.01
•FastIron Ethernet Switch Software Licensing Guide, 08.0.01
•FastIron Feature Support Matrix, 08.0.01
•Brocade TurboIron 24X Series Configuration Guide, 08.0.01
•Brocade ICX 6430-C Switch Installation Guide, 08.0.01
•Brocade ICX 6430 and ICX 6450 Stackable Switches Hardware Installation Guide, 08.0.01
•Brocade FCX Series Hardware Installation Guide, 08.0.01
•Brocade FastIron ICX 6610 Stackable Switch Hardware Installation Guide, 08.0.01
•Brocade ICX 6650 Ethernet Switch Installation Guide, 08.0.01
•Brocade FastIron SX Series Chassis Hardware Installation Guide, 08.0.01
•Brocade TurboIron 24X Series Hardware Installation Guide, 08.0.01
•Brocade ICX 6450-C12-PD Switch Installation Guide, 08.0.01
•Unified IP MIB Reference, 08.0.01
Getting technical help
To contact Technical Support, go to http://www.brocade.com/services-support/index.page for the
latest e-mail and telephone contact information.