Brocade Communications Systems StoreFabric SN6500B Service manual

53-1002748-01
14 December 2012
®
Fabric OS FCIP
Administrator’s Guide
Supporting Fabric OS v7.1.0

Copyright © 2009-2011 Brocade Communications Systems, Inc. All Rights Reserved.
Brocade, the B-wing symbol, BigIron, DCX, Fabric OS, FastIron, NetIron, SAN Health, ServerIron, and TurboIron are registered
trademarks, and Brocade Assurance, Brocade NET Health, Brocade One, CloudPlex, MLX, VCS, VDX, and When the Mission Is
Critical, the Network Is Brocade are trademarks of Brocade Communications Systems, Inc., in the United States and/or in other
countries. Other brands, products, or service names mentioned are or may be trademarks or service marks 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
Corporate and Latin American Headquarters
Brocade Communications Systems, Inc.
130 Holger Way
San Jose, CA 95134
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
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: [e-mail]
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: [e-mail]
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: [e-mail]

Fabric OS FCIP Administrator’s Guide iii
53-1002748-01
Document History
Title Publication number Summary of changes Date
Fabric OS FCIP Administrator’s Guide 53-1001349-01 New document. July 2009
Fabric OS FCIP Administrator’s Guide 53-1001349-02 Various changes and
corrections.
October 2009
Fabric OS FCIP Administrator’s Guide 53-1001755-01 New document for Fabric OS
version 6.3.1.
January 2010
Fabric OS FCIP Administrator’s Guide 53-1001766-01 New document for Fabric OS
version 6.4.0.
March 2010
Fabric OS FCIP Administrator’s Guide 53-1002155-01 Updated document for
Fabric OS version 7.0.0.
April 2011
Fabric OS FCIP Administrator’s Guide 53-1002474-01 Updated document for
Fabric OS version 7.0.1.
December 2011
Fabric OS FCIP Administrator’s Guide 53-1002748-01 Updated document for
Fabric OS version 7.1.0.
December 2012

iv Fabric OS FCIP Administrator’s Guide
53-1002748-01

Fabric OS FCIP Administrator’s Guide v
53-1002748-01
Contents
About This Document
How this document is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Supported hardware and software . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
What’s new in this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Document conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Text formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Command syntax conventions . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Notes, cautions, and warnings . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Key terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Notice to the reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Brocade resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Other industry resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Getting technical help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Document feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Chapter 1 FCIP Overview
FCIP platforms and supported features . . . . . . . . . . . . . . . . . . . . . . . 1
FCIP concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IP WAN network considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 2 FCIP on the 7800 Switch and FX8-24 Blade
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
7800 switch hardware overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7800 switch license options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
VE_Ports and FCIP tunnels on the 7800 switch . . . . . . . . . . . . . 8
FCIP Trunking capacity on the 7800 switch. . . . . . . . . . . . . . . . . 8
FX8-24 blade hardware overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Removing FX8-24 blades. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Firmware downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
FX8-24 blade license options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
VE_Ports and FCIP tunnels on the FX8-24 blade. . . . . . . . . . . . 11
FCIP Trunking capacity on the FX8-24 blade . . . . . . . . . . . . . . . 11
10 GbE port considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

vi Fabric OS FCIP Administrator’s Guide
53-1002748-01
FCIP Trunking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Design for redundancy and fault tolerance . . . . . . . . . . . . . . . . 17
FCIP tunnel restrictions for FCP and FICON acceleration
features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FCIP circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FCIP circuit failover capabilities . . . . . . . . . . . . . . . . . . . . . . . . . 19
Failover in TI zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Bandwidth calculation during failover . . . . . . . . . . . . . . . . . . . . 22
Adaptive Rate Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
FSPF link cost calculation when ARL is used. . . . . . . . . . . . . . .23
PP-TCP-QoS priorities over an FCIP trunk . . . . . . . . . . . . . . . . . . . . .23
QoS, DSCP, and VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
DSCP Quality of Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
VLANs and Layer 2 Quality of Service. . . . . . . . . . . . . . . . . . . . .26
When both DSCP and L2CoS are used. . . . . . . . . . . . . . . . . . . . 26
DSCP and VLAN support on FCIP circuits. . . . . . . . . . . . . . . . . . 27
Managing the VLAN tag table . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Compression options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
IPsec implementation over FCIP tunnels. . . . . . . . . . . . . . . . . . . . . . 30
Limitations using IPsec over FCIP tunnels . . . . . . . . . . . . . . . . .30
IPsec for the 7800 switch and FX8-24 blade. . . . . . . . . . . . . . . 30
Enabling IPsec and IKE policies . . . . . . . . . . . . . . . . . . . . . . . . . 31
Open Systems Tape Pipelining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
FCIP Fastwrite and OSTP configurations . . . . . . . . . . . . . . . . . . 32
Support for IPv6 addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
IPv6 with embedded IPv4 addresses . . . . . . . . . . . . . . . . . . . . .35
Memory use limitations for large-device tunnel configurations. . . .35
Control blocks created during FCP traffic flow. . . . . . . . . . . . . . 35
Control blocks created during FCP traffic flow. . . . . . . . . . . . . . 36
Determining how a configuration affects FCIP tunnel control
block memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Configuration preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Configuration steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Setting VE_Ports to persistently disabled state. . . . . . . . . . . . .38
Configuring VEX_Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Enabling XISL for VE_Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Configuring the media type for GbE ports 0 and 1 (7800
switch only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Setting the GbE port operating mode (FX8-24 blade only) . . . .40
Configuring a GbE or XGE port IP address . . . . . . . . . . . . . . . . . 40
Configuring an IP route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Validating IP connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Creating an FCIP tunnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Creating additional FCIP circuits . . . . . . . . . . . . . . . . . . . . . . . .49
Verifying the FCIP tunnel configuration . . . . . . . . . . . . . . . . . . . 49
Enabling persistently disabled ports . . . . . . . . . . . . . . . . . . . . .50
Creating a multicircuit tunnel (example) . . . . . . . . . . . . . . . . . . . . . .50

Fabric OS FCIP Administrator’s Guide vii
53-1002748-01
Modifying an FCIP tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Modifying an FCIP circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Deleting an IP interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Deleting an IP route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Deleting an FCIP tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Deleting an FCIP circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Virtual Fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Brocade 7800 Switch considerations and limitations . . . . . . .56
Port sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Chapter 3 FCIP Management and Troubleshooting
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Inband management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
IP routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Configuring IP addresses and routes . . . . . . . . . . . . . . . . . . . . .60
VLAN tagging support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
IP forwarding support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
WAN performance analysis tools . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
The tperf option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Using ping to test a connection. . . . . . . . . . . . . . . . . . . . . . . . . .68
Using traceroute. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Portshow command usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Displaying IP interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Displaying IP routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Displaying FCIP tunnel information. . . . . . . . . . . . . . . . . . . . . . . 69
Displaying IP addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Displaying performance statistics. . . . . . . . . . . . . . . . . . . . . . . .70
Displaying FCIP tunnel information. . . . . . . . . . . . . . . . . . . . . . . 70
Displaying an FCIP tunnel with FCIP circuit information . . . . . . 70
Displaying FCIP tunnel performance . . . . . . . . . . . . . . . . . . . . . 71
Displaying FCIP tunnel TCP statistics . . . . . . . . . . . . . . . . . . . . . 71
Displaying FCIP circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Displaying a single circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Displaying TCP statistics for circuits . . . . . . . . . . . . . . . . . . . . . . 72
Displaying FCIP circuit performance. . . . . . . . . . . . . . . . . . . . . . 72
Displaying QoS prioritization for a circuit . . . . . . . . . . . . . . . . . .72
Displaying FCIP tunnel information (FX8-24 blade). . . . . . . . . .72
FCIP tunnel issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
FCIP links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Gathering additional information . . . . . . . . . . . . . . . . . . . . . . . . 75
FTRACE concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Index

viii Fabric OS FCIP Administrator’s Guide
53-1002748-01

Fabric OS FCIP Administrator’s Guide ix
53-1002748-01
About This Document
•How this document is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
•Supported hardware and software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
•What’s new in this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
•Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
•Notice to the reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
•Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
•Getting technical help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
•Document feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
How this document is organized
.This document is organized to help you find the information that you want as quickly and easily as
possible. It contains the following components:
•Chapter 1, “FCIP Overview” describes FCIP concepts and features.
•Chapter 2, “FCIP on the 7800 Switch and FX8-24 Blade” describes FCIP tunnel and trunking
configuration options for the 7800 switch and FX8-24 blade.
•Chapter 3, “FCIP Management and Troubleshooting” describes FCIP management and
troubleshooting operations.
Supported hardware and software
The following hardware platforms support FCIP as described in this manual:
•Brocade DCX, DCX 8510-8, DCX-4S, and DCX 8510-4 with one or more FX8-24 blades
•Brocade 7800 switch

xFabric OS FCIP Administrator’s Guide
53-1002748-01
What’s new in this document
Major new additions or deletions in this document support the following:
•General
-Removed all mention of FR4-18i blade since it is not supported as of this release.
•Preface.
-Removed FR4-18i from “Supported hardware and software” on page ix.
•Chapter 1
-Removed FR4-18i from “FCIP platforms and supported features” on page 1
•Chapter 2
-Added note under “7800 switch license options” on page 7 that FCR is not supported on a
7800 switch that has been partitioned for virtual fabrics. Removed requirement that 7800
upgrade license is required to enable Advanced FICON Acceleration License or CUP.
-Under “Creating an FCIP tunnel” on page 42, modified arguments in “Tunnel Options”
table for the following:
•QoS priority percentages
•Committed rate
•Adaptive rate limiting
•Keep-alive timeout
-Added “Firmware downloads” on page 10 under “FX8-24 blade hardware overview” on
page 8 to include this statement: “If FCIP Fibre Channel traffic is active on Fibre Channel
ports, the traffic will be impacted during a firmware download. “
-Under “Limitations using IPsec over FCIP tunnels” on page 30, modified bullet about IPsec
only being supported on VE group 12-21 on FX8-24 blade to say that “Older versions of the
FX8-24 blade do not support IPsec on group 22-31. For these blades, a RASLOG warning
message will display that blade is not at correct version to support IPsec enabled tunnels
on VEs 22-31.”
-Under “Enabling XISL for VE_Ports” on page 39, added note “Although you can create up
to four logical switches on the Brocade 7800, you cannot use these for XISLs because a
base switch cannot be created.”
-Under “Virtual Fabrics” on page 56, added support for virtual switches and fabrics on
7800 switch. Also added considerations and limitations for virtual fabrics for 7800 switch.
-Under “Limitations of port sharing” on page 57“, added paragraph about effect of
disabling default switch on shared GbE interfaces between the default switch and other
logical switches.
-Removed note that there are no addressing restrictions when using switches or blades
operating with Fabric OS v7.0.0 or later since. This was confusing since IP address limits
are defined for GbE, 10 GbE, and cross ports when in 10 Gbps mode.
-Under “Creating a multicircuit tunnel (example)” on page 50, modified paragraph following
figure titled “FCIP tunnel example with six circuits” describing circuits per tunnel
configured in example and requirements for maximum circuits per port on 7800 switch
and FX8-24 blade.

Fabric OS FCIP Administrator’s Guide xi
53-1002748-01
•Chapter 3
-Removed chapter 3 from previous release, titled “FCIP on the FR4-18i blade.” Chapter 3
now becomes “FCIP Management and Troubleshooting.”
-Removed “portCmd --ipperf” under “WAN performance analysis tools” on page 66 since
this is a tool specific to FR4-18i blade. Also, the command in last bullet in this section was
changed to portShow fcipTunnel --perf.
-Added additional general information about tperf under “The tperf option” on page 66 and
details about establishing a telnet/ssh sessions for the source, sink, to display statistics.
-Removed “The ipperf option,” “ipperf performance statistics,” “Starting an ipperf,” and
“ipperf options” sections since these only apply to the FR4-18i blade.
-Modified “Displaying FCIP tunnel information on FR4-18i blade” for FX8-24 blade and
renamed section to “Displaying FCIP tunnel information (FX8-24 blade)” on page 72.
Modified information on using the portShow fciptunnel command.
-Under “FCIP tunnel issues” on page 73, modified step on using portShow fciptunnel
command to remove FR-14i blade options.
-Under “Displaying FCIP tunnel TCP statistics” on page 71, explained --reset and --lifetime
options for portshow fciptunnel slot/ve_port -tcp command.
-Added “Displaying TCP statistics for circuits” on page 72“and explained --reset and
--lifetime options for portshow fcipcircuit slot/ve_port -tcp command
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:
bold text Identifies command names
Identifies the names of user-manipulated GUI elements
Identifies keywords and operands
Identifies text to enter at the GUI or CLI
italic text Provides emphasis
Identifies variables
Identifies paths and Internet addresses
Identifies document titles
code text Identifies CLI output
Identifies command syntax examples
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 often all
lowercase. Otherwise, this manual specifically notes those cases in which a command is
case-sensitive.

xii Fabric OS FCIP Administrator’s Guide
53-1002748-01
Command syntax conventions
Command syntax in this manual follows these conventions:
Notes, cautions, and warnings
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.
CAUTION
A Caution statement alerts you to situations that can cause damage to hardware, firmware,
software, or data.
DANGER
A Danger statement indicates conditions or situations that can be potentially lethal or extremely
hazardous to you. Safety labels are also attached directly to products to warn of these conditions
or situations.
command Commands are printed in bold.
--option, option Command options are printed in bold.
-argument, arg Arguments.
[ ] Optional element.
variable Variables are printed in italics. In the help pages, variables are underlined or
enclosed in angled brackets < >.
... Repeat the previous element, for example “member[;member...]”
value Fixed values following arguments are printed in plain font. For example,
--show WWN
| Boolean. Elements are exclusive. Example: --show -mode egress | ingress
\ Backslash. Indicates that the line continues through the line break. For
command line input, type the entire line without the backslash.

Fabric OS FCIP Administrator’s Guide xiii
53-1002748-01
Key terms
For definitions specific to Brocade and Fibre Channel, see the technical glossaries on MyBrocade.
See “Brocade resources” on page xiii for instructions on accessing MyBrocade.
For definitions of SAN-specific terms, visit the Storage Networking Industry Association online
dictionary at:
http://www.snia.org/education/dictionary
Notice to the reader
This document may contain references to the trademarks of the following corporations. These
trademarks are the properties of their respective companies and corporations.
These references are made for informational purposes only.
Additional information
This section lists additional Brocade and industry-specific documentation that you might find
helpful.
Brocade resources
To get up-to-the-minute information, go to http://my.brocade.com and register at no cost for a user
ID and password.
For additional Brocade documentation, visit the Brocade SAN Info Center and click the Resource
Library location:
http://www.brocade.com
Release notes are available on the MyBrocade website and are also bundled with the Fabric OS
firmware.
Other industry resources
•White papers, online demos, and data sheets are available through the Brocade website at
http://www.brocade.com/products-solutions/products/index.page.
•Best practice guides, white papers, data sheets, and other documentation is available through
the Brocade Partner website.
For additional resource information, visit the Technical Committee T11 website. This website
provides interface standards for high-performance and mass storage applications for Fibre
Channel, storage management, and other applications:
Corporation Referenced Trademarks and Products
Microsoft Corporation Windows, Windows NT, Internet Explorer

xiv Fabric OS FCIP Administrator’s Guide
53-1002748-01
http://www.t11.org
For information about the Fibre Channel industry, visit the Fibre Channel Industry Association
website:
http://www.fibrechannel.org
Getting technical help
Contact your switch support supplier for hardware, firmware, and software support, including
product repairs and part ordering. To expedite your call, have the following information available:
1. General Information
•Switch model
•Switch operating system version
•Error numbers and messages received
•supportSave command output
•Detailed description of the problem, including the switch or fabric behavior immediately
following the problem, and specific questions
•Description of any troubleshooting steps already performed and the results
•Serial console and Telnet session logs
•syslog message logs
2. Switch Serial Number
The switch serial number and corresponding bar code are provided on the serial number label,
as illustrated below:
The serial number label is located as follows:
•Brocade 300, 5100, 5300, 7800, 8000, VA-40FC, 6505, 6510, and Brocade Encryption
Switch—On the switch ID pull-out tab located inside the chassis on the port side on the left
•Brocade 5410, M5424, 5450, 5460, 5470, 5480—Serial number label attached to the
module
•DCX 8510-8 and DCX—On the port side of the chassis, on the lower right side and directly
above the cable management comb.
•DCX 8510-4 and DCX-4S—On the nonport side of the chassis, on the lower left side.
3. World Wide Name (WWN)
4. Use the licenseIdShow command to display the switch WWN.
If you cannot use the licenseIdShow command because the switch is inoperable, you can get
the WWN from the same place as the serial number, except for the Brocade DCX and DCX-4S.
For the Brocade DCX and DCX-4S, access the numbers on the WWN cards by removing the
Brocade logo plate at the top of the non-port side of the chassis.
*FT00X0054E9*
FT00X0054E9

Fabric OS FCIP Administrator’s Guide xv
53-1002748-01
Document feedback
Quality is our first concern at Brocade and we have made every effort to ensure the accuracy and
completeness of this document. However, if you find an error or an omission, or you think that a
topic needs further development, we want to hear from you. Forward your feedback to:
[e-mail]
Provide the title and version number of the document and as much detail as possible about your
comment, including the topic heading and page number and your suggestions for improvement.

xvi Fabric OS FCIP Administrator’s Guide
53-1002748-01

Fabric OS FCIP Administrator’s Guide 1
53-1002748-01
Chapter
1
FCIP Overview
•FCIP platforms and supported features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
•FCIP concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
•IP WAN network considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FCIP platforms and supported features
There are two Brocade platforms that support FCIP:
•The Brocade 7800 switch
•The Brocade FX8-24 blade (DCX, DCX-4S, DCX 8510-8, and DCX 8510-4 chassis)
NOTE
FCIP connections are not supported between 7800 switch or FX8-24 blades and previous
generation products such as Brocade 7500 switches or FR4-18i blades.
Note there are differences in platform capabilities. For example, the 7800 switch does not support
10GbE ports.
Table 1 summarizes FCIP capabilities per platform.
TABLE 1 FCIP capabilities by platform
Capabilities 7800 switch FX8-24 blade
FCIP Trunking Yes Yes
Adaptive Rate Limiting Yes Yes
10GbE ports No Yes
FC ports up to 8 Gbps Yes (1, 2, 4, 8
Gbps)
Yes (1, 2, 4, 8
Gbps)
Compression Yes
LZ and Deflate
Yes
LZ and Deflate
Protocol acceleration
•FCIP Fastwrite
•Open Systems Tape
Pipelining
-OSTP read
-OSTP write
Yes Yes
QoS
•Marking DSCP Yes Yes
•Marking 802.1P - VLAN
tagging
Yes Yes

2Fabric OS FCIP Administrator’s Guide
53-1002748-01
FCIP concepts
1
FCIP concepts
Fibre Channel over IP (FCIP) enables you to use existing IP wide area network (WAN) infrastructure
to connect Fibre Channel SANs. FCIP supports applications such as remote data replication (RDR),
centralized SAN backup, and data migration over very long distances that are impractical or very
costly using native Fibre Channel connections. FCIP tunnels are used to pass Fibre Channel I/O
through an IP network. FCIP tunnels are built on a physical connection between two peer switches
or blades. Fibre Channel frames enter FCIP through virtual E_Ports (VE_Ports or VEX_Ports) and are
encapsulated and passed to Transmission Control Protocol (TCP) layer connections. The TCP
connections ensure in-order delivery of FC frames and lossless transmission. The Fibre Channel
fabric and all Fibre Channel targets and initiators are unaware of the presence of the IP network.
Figure 1 on page 3 shows the relationship of FC and TCP/IP layers, and the general concept of FCIP
tunneling.
•Enforcement 802.1P - VLAN
tagging
Yes Yes
FICON extension
•FICON emulation
•IBM z/OS Global Mirror
(formerly eXtended Remote
Copy or XRC) acceleration
•Tape read acceleration
•Tape write acceleration
•Teradata emulation
•Printer emulation1
Yes Yes
IPsec
•AES encryption algorithm
Yes
Transpor t mode
Yes
Transpor t mode
VEX_Ports Yes Yes
Support for third-party WAN
optimization hardware
No1No
IPv6 addresses for FCIP
tunnels2
Yes Yes
Support for jumbo frames No
MTU of 1500 is
maximum
No
MTU of 1500 is
maximum
1. Not supported in Fabric OS version v7.0 and later.
2. IPv6 addressing is not supported in conjunction with IPsec in Fabric
OS version v7.0.1 and later.
TABLE 1 FCIP capabilities by platform (Continued)
Capabilities 7800 switch FX8-24 blade

Fabric OS FCIP Administrator’s Guide 3
53-1002748-01
IP WAN network considerations 1
FIGURE 1 FCIP tunnel concept and TCP/IP layers
Each FCIP tunnel is assigned to a single VE_Port and supports a single circuit. The circuit provides
the link for traffic between the source and destination IP addresses on either end of the tunnel.
Since a switch can support multiple VE_Ports, multiple FCIP tunnels can be created.
FCIP Trunking is a method for managing the use of WAN bandwidth and providing redundant paths
over the WAN that can protect against transmission loss due to WAN failure. A trunk is enabled by
creating multiple logical circuits within an FCIP tunnel to carry traffic between multiple source and
destination addresses.
For more information on FCIP tunnel, and trunking concepts for Brocade products, refer to Chapter
2, “FCIP on the 7800 Switch and FX8-24 Blade”.
IP WAN network considerations
Because FCIP uses TCP connections over an existing wide area network, consult with the WAN
carrier and IP network administrator to ensure that the network hardware and software equipment
operating in the data path can properly support the TCP connections. Keep the following
considerations in mind:
•Routers and firewalls that are in the data path must be configured to pass FCIP traffic (TCP
port 3225) and IPsec traffic, if IPsec is used (UDP port 500).
•To enable recovery from a WAN failure or outage, be sure that diverse, redundant network
paths are available across the WAN.
•Be sure the underlying WAN infrastructure is capable of supporting the redundancy and
performance expected in your implementation.
To Fibre Channel To Fibre Channel
FCIP Tunnel
WAN
FC-IP
FC-2
FC-1
FC-0
FC-2
FC-1
FC-0
FC-IP
TCP
IP
LINK
PHY
TCP
IP
LINK
PHY

4Fabric OS FCIP Administrator’s Guide
53-1002748-01
IP WAN network considerations
1