Brocade Communications Systems 8 Service manual

53-1001766-01
30 March 2010
®
Fabric OS FCIP
Administrator’s Guide
Supporting Fabric OS v6.4.0

Copyright © 2009-2010 Brocade Communications Systems, Inc. All Rights Reserved.
Brocade, the B-wing symbol, BigIron, DCX, Fabric OS, FastIron, IronPoint, IronShield, IronView, IronWare, JetCore, NetIron,
SecureIron, ServerIron, StorageX, and TurboIron are registered trademarks, and DCFM, Extraordinary Networks, and SAN Health
are trademarks of Brocade Communications Systems, Inc., in the United States and/or in other countries. All other brands,
products, or service names are or may be trademarks or service marks of, and are used to identify, products or services 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.
1745 Technology Drive
San Jose, CA 95110
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: emea-inf[email protected]om
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]

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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

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Contents
Chapter 1 FCIP overview
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
FCIP platforms and supported features . . . . . . . . . . . . . . . . . . . . . . . 1
FCIP concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
VE_Ports and FCIP tunnels on the 7800 switch . . . . . . . . . . . . . 7
FCIP trunking capacity on the 7800 switch . . . . . . . . . . . . . . . . . 7
FX8-24 blade hardware overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
FX8-24 blade licensing options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
VE_Ports and FCIP tunnels on the FX8-24 blade. . . . . . . . . . . . 10
FCIP trunking capacity on the FX8-24 blade . . . . . . . . . . . . . . .10
FCIP trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Design for redundancy and fault tolerance . . . . . . . . . . . . . . . .11
FCIP tunnel restrictions for FCP and FICON
acceleration features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
FCIP circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
FCIP circuit failover capabilities . . . . . . . . . . . . . . . . . . . . . . . . .12
Bandwidth calculation during failover . . . . . . . . . . . . . . . . . . . .13
Adaptive Rate Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FSPF link cost calculation when ARL is used. . . . . . . . . . . . . . .14
QoS SID/DID priorities over an FCIP trunk . . . . . . . . . . . . . . . . . . . .15
QOS, DSCP, and VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
DSCP quality of service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
VLANs and layer two quality of service. . . . . . . . . . . . . . . . . . . . 16
When both DSCP and L2CoS are used. . . . . . . . . . . . . . . . . . . . 16
DSCP and VLAN support on FCIP circuits. . . . . . . . . . . . . . . . . . 17
Managing the VLAN tag table . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Compression options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
IPSec implementation over FCIP tunnels . . . . . . . . . . . . . . . . . . . . .20
Limitations in using IPSec over FCIP tunnels. . . . . . . . . . . . . . .20
IPSec for the 7800 and FX8-24 blade . . . . . . . . . . . . . . . . . . . .21
Enabling IPSec and IKE policies . . . . . . . . . . . . . . . . . . . . . . . . .21

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Open Systems Tape Pipelining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
FCIP Fastwrite and OSTP configurations . . . . . . . . . . . . . . . . . .23
Support for IPv6 Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
IPv6 with Embedded IPv4 Addresses . . . . . . . . . . . . . . . . . . . . .25
Configuration preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Configuration steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Setting VE_ports to persistently disabled state . . . . . . . . . . . . . 27
Configuring VEX_ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Configuring the media type for GbE ports 0 and 1
(7800 switch only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Setting the GbE port operating mode (FX8-24 blade only) . . . .28
Configuring a GbE or XGE port IP address . . . . . . . . . . . . . . . . .29
Configuring an IP route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Validating IP connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Creating an FCIP tunnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Creating additional FCIP circuits . . . . . . . . . . . . . . . . . . . . . . . .35
Verifying the FCIP tunnel configuration . . . . . . . . . . . . . . . . . . .35
Enabling persistently disabled ports . . . . . . . . . . . . . . . . . . . . .36
Modifying an FCIP tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Modifying an FCIP circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Deleting an IP interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Deleting an IP route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Deleting an FCIP tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Deleting an FCIP circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Virtual fabrics and the FX8-24 blade. . . . . . . . . . . . . . . . . . . . . . . . .38
Chapter 3 FCIP on the 7500 Switch and FR4-18i Blade
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
The 7500 switch and FR4-18i blade . . . . . . . . . . . . . . . . . . . . . . . . .40
7500 switch and FR4-18i blade ports . . . . . . . . . . . . . . . . . . . . 41
FCIP Design Considerations for the 7500 switch and
FR4-18i blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Virtual ports and FCIP tunnels . . . . . . . . . . . . . . . . . . . . . . . . . .42
Virtual Port Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Compression on FCIP tunnels. . . . . . . . . . . . . . . . . . . . . . . . . . .43
Traffic shaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FCIP services license . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
QoS implementation over FCIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
DSCP quality of service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
L2CoS quality of service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
When both DSCP and L2CoS are used. . . . . . . . . . . . . . . . . . . .45

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IPSec implementation over FCIP . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
IPsec configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
IPsec parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Creating an IKE and IPsec policy . . . . . . . . . . . . . . . . . . . . . . . .48
Displaying IKE and IPsec policy settings . . . . . . . . . . . . . . . . . .49
Deleting an IKE and IPsec policy . . . . . . . . . . . . . . . . . . . . . . . .49
Viewing IPsec information for an FCIP tunnel . . . . . . . . . . . . . .50
Virtual Fabrics and FCIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
TCP Byte Streaming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Supported third party WAN optimizer hardware . . . . . . . . . . . . 51
Options for enhancing tape I/O performance . . . . . . . . . . . . . . . . . .52
FCIP Fastwrite and OSTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
FCIP Fastwrite and OSTP configurations . . . . . . . . . . . . . . . . . .53
Unsupported configurations for Fastwrite and OSTP . . . . . . . .54
FCIP services configuration guidelines . . . . . . . . . . . . . . . . . . . . . . .56
Setting persistently disabled ports . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Configuring VEX_Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Creating IP interfaces and routes . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Creating an FCIP tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Verifying the FCIP tunnel configuration . . . . . . . . . . . . . . . . . . . . . . .63
Enabling persistently disabled ports . . . . . . . . . . . . . . . . . . . . . . . . .65
Managing FCIP tunnels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Modifying and deleting QoS Settings . . . . . . . . . . . . . . . . . . . . .68
Deleting an FCIP tunnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Deleting an IProute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Deleting an IP interface (IPIF) . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Managing the VLAN tag table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Chapter 4 FCIP Management and Troubleshooting
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
WAN performance analysis tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
The tperf option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
The ipperf option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Ipperf performance statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Starting an ipperf session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Ipperf options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Using ping to test a connection. . . . . . . . . . . . . . . . . . . . . . . . . .79
Using Traceroute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

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Portshow command usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Displaying IP interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Displaying IP routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Displaying FCIP tunnel information. . . . . . . . . . . . . . . . . . . . . . . 81
Displaying FCIP tunnel information
(7800 switch and FX8-24 blade) . . . . . . . . . . . . . . . . . . . . . . . .82
Displaying an FCIP tunnel with FCIP circuit information
(7800 switch and FX8-24 blade) . . . . . . . . . . . . . . . . . . . . . . . .82
Displaying FCIP tunnel performance
(7800 switch and FX8-24 blade) . . . . . . . . . . . . . . . . . . . . . . . .84
Displaying FCIP tunnel TCP connections
(7800 switch and FX8-24 blade) . . . . . . . . . . . . . . . . . . . . . . . .84
Displaying FCIP circuits (7800 switch and FX8-24 blade) . . . .86
Displaying a single circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Displaying FCIP circuit performance
(7800 switch and FX8-24 blade) . . . . . . . . . . . . . . . . . . . . . . . . 87
Displaying QoS prioritization for a circuit . . . . . . . . . . . . . . . . . .88
Displaying FCIP tunnel information
(7500 switch/FR4-18i blade) . . . . . . . . . . . . . . . . . . . . . . . . . . .89
FCIP tunnel issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
FCIP links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Gathering additional information . . . . . . . . . . . . . . . . . . . . . . . .95
FTRACE concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Displaying the trace for a tunnel. . . . . . . . . . . . . . . . . . . . . . . . . 97
Deleting an FTRACE configuration for a tunnel . . . . . . . . . . . . .98
Example of capturing an FTRACE on a tunnel . . . . . . . . . . . . . .99

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About This Document
In this chapter
•How this document is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
•Supported hardware and software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
•What’s new in this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
•Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
•Notice to the reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
•Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
•Getting technical help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
•Document feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
How this document is organized
.The document 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 on the 7500 Switch and FR4-18i Blade” describes FCIP tunnel configuration
options for the 7500 switch and FR4-18i blade.
•Chapter 4, “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 and DCX-4S with one or more FX8-24 blades.
•Brocade 7800 Switch.
•Brocade DCX and DCX-4S or 48000 with one or more FR4-18i blades
•Brocade 7500 Switch.
•Brocade 7500E Switch.

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What’s new in this document
This manual applies to FCIP support in Fabric OS version 6.4.0 and later releases. New features
include support for IPSec, support for VLAN and DSCP tagging, and support for VEX ports on the
FX8-24 blade.
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.

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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.
Key terms
For definitions specific to Brocade and Fibre Channel, see the technical glossaries on Brocade
Connect. See “Brocade resources” on page xii for instructions on accessing Brocade Connect.
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.

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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 web site 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:
http://www.t11.org
For information about the Fibre Channel industry, visit the Fibre Channel Industry Association
website:
http://www.fibrechannel.org
Corporation Referenced Trademarks and Products
Microsoft Corporation Windows, Windows NT, Internet Explorer

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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 7500 and 7800 switch—On the switch ID pull-out tab located inside the chassis
on the port side on the left
•Brocade DCX—On the bottom right on the port side of the chassis
•Brocade DCX and DCX-4S—On the bottom right on the port side of the chassis, directly
above the cable management comb
3. World Wide Name (WWN)
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

xiv Fabric OS FCIP Administrator’s Guide
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Fabric OS FCIP Administrator’s Guide 1
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Chapter
1FCIP overview
In this chapter
•FCIP platforms and supported features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
•FCIP concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
•IP WAN network considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FCIP platforms and supported features
There are five Brocade platforms that support FCIP:
• The Brocade 7800 switch.
• The FX8-24 blade (DCX, DCX4S chassis).
• The 7500E switch.
• The 7500 switch.
• The FR4-18i blade (DCX, DCX4S, 48000 chassis).
There are differences in platform capabilities. For example, the 7500/7500E switch and FR4-18i
blade cannot support FCIP trunking.
Table 1 summarizes FCIP capabilities per platform.
TABLE 1 FCIP capabilities by platform
Capabilities 7800 switch FX8-24 blade 7500/7500E
switch
FR4-18i blade
FCIP trunking Yes Yes, but not
across 10GbE
ports.
No No
Adaptive Rate Limiting Yes Yes, but not on
10 GbE ports.
No No
10GbE ports No Yes No No
FC ports up to 8 Gbps Yes (1, 2, 4, 8
Gbps)
Yes (1, 2, 4, 8
Gbps)
No (1, 2, 4 Gbps) No (1, 2, 4 Gbps)
Compression Yes
LZ and Deflate
Yes
LZ and Deflate
Yes
LZ only
Yes
LZ only
Protocol acceleration
•FCIP Fastwrite
•Open Systems Tape
Pipelining
•OSTP read
•OSTP write
Yes Yes Yes Yes

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FCIP platforms and supported features
1
*Not supported in Fabric OS version 6.4.0, but will be supported in a later version.
** IPv6 addressing is not supported in conjunction with IPsec in Fabric OS version 6.4.0, but will
be supported in a later version.
QoS
•Marking DSCP Yes Yes Yes Yes
•Marking 802.1P - VLAN
tagging
Yes Yes Yes Yes
•Enforcement 802.1P - VLAN
tagging
Yes Yes No No
FICON extension
•FICON emulation
•XRC acceleration
•Tape read acceleration
•Tape write acceleration
Yes Yes Yes Yes
IPsec
•AES encryption algorithm
Yes
Transport mode
Yes
Transport mode
Yes
Tunnel mode
Yes
Tunnel mode
VEX_Ports Yes Yes Yes Yes
Support for third party WAN
optimization hardware
No* No* Yes Yes
IPv6 addresses for FCIP
tunnels**
Yes Yes Yes Yes
Support for jumbo frames No*
MTU of 1500 is
maximum
No*
MTU of 1500 is
maximum
Yes Yes
TABLE 1 FCIP capabilities by platform
Capabilities 7800 switch FX8-24 blade 7500/7500E
switch
FR4-18i blade

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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 TCP layer connections. The TCP connections insure 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 shows the relationship of FC and
TCP/IP layers, and the general concept of FCIP tunneling.
FIGURE 1 FCIP tunnel concept and TCP/IP layers
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 be sure that the network hardware and software equipment
operating in the data path can properly support the TCP connections. When consulting, keep the
following 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). TCP port 3226 must be
configured for the 7500/FR4-18i only.
•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.
TCP
IP
LINK
PHY

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IP WAN network considerations
1

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Chapter
2FCIP on the 7800 Switch and FX8-24 Blade
In this chapter
•7800 switch hardware overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
•7800 switch license options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
•FX8-24 blade hardware overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
•FX8-24 blade licensing options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
•FCIP trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
•Adaptive Rate Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
•QoS SID/DID priorities over an FCIP trunk. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
•QOS, DSCP, and VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
•IPSec implementation over FCIP tunnels. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
•Support for IPv6 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
•Configuration preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
•Configuration steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
•Virtual fabrics and the FX8-24 blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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7800 switch hardware overview
2
7800 switch hardware overview
Figure 2 shows the FC ports and GbE ports on the 7800 switch. There are sixteen FC ports,
numbered 0 through 15. The FC ports can operate at 1, 2, 4, or 8 Gbps. There are six GbE ports.
Ports 0 and 1 are available as either RJ-45 ports or SFP ports. Only six total GbE ports may be used.
The GbE ports provide up to 6 Gbps of bandwidth.
FIGURE 2 7800 switch FC and GbE ports
The 7800 switch comes in two models:
•The 7800 4/2 base model uses FC ports 0 through 3, and GbE ports 0 and 1. The GbE ports
may be either copper or optical. The RJ-45 copper ports are the default.
•The 7800 16/6 uses FC ports 0 through 15 and GbE ports 0 through 5. The 7800 upgrade
license is required. A 7800 upgrade license may be purchased for a 7800 4/2, which enables
twelve more Fibre Channel ports for a total of sixteen, and enables the use of four more optical
GbE ports for a total of six.
7800 switch license options
Some of the capabilities of the 7800 switch require feature licenses. These include the following:
•The 7800 upgrade license to enable full hardware capabilities, full FCIP tunnel capabilities,
support of advanced capabilities like open systems tape pipelining (OSTP), FICON CUP support,
and separately licensed advanced FICON acceleration capabilities.
•The Advanced Extension License to enable FCIP trunking and Adaptive Rate Limiting (ARL).
•The Advanced FICON acceleration license to enable accelerated tape read/write and
accelerated data mirroring over distance in FICON environments.
•The IR is required for FCR. The IR license is required to configure VEX_ports.
Please refer to Chapter 16 of the Brocade Fabric OS Administrator’s Guide for complete
information about licensing requirements.
1FC ports 0 through 3.
2FC ports 4 through 15.
3Copper GbE ports 0 and 1. These ports are RJ-45 copper alternatives for GbE ports 0 and 1.
4GbE ports 0 though 5.
2 4
1 3