Fabric OS 5.2.x administrator guide 411
D
Using Remote Switch
This appendix describes the concepts and procedures for using the Remote Switch feature and contains the
following topics:
About Remote Switch
The Remote Switch feature, which aids in ensuring gateway compatibility, was formerly a licensed feature.
Its functionality is now available as part of the Fabric OS standard feature set through the use of the
portCfgIslMode
command. For those who use Remote Switch as part of their legacy set of tools, this
appendix contains a description and procedure for the feature.
Remote Switch, enables you to connect two remote switches over an IP network, enabling communication
of IP or ATM protocols as well as Fibre Channel traffic.
The Remote Switch feature functions with the aid of a “bridging device” or Fibre Channel gateway. The
gateway supports both a Fibre Channel physical interface and a secondary, non-Fibre Channel physical
interface, such as IP, SONET, or ATM. Remote Switch functions over E_Port connections. With Remote
Switch on both fabrics, the gateway accepts Fibre Channel frames from one fabric, tunnels them across the
network, and passes them to the other fabric. From the viewpoint of the connected hosts and storage
devices, fabrics using Remote Switch interact the same as locally connected switches.
Remote switch capabilities
Remote Switch provides many of the same capabilities of normal ISL links including,
•
Coordinated fabric services
The Remote Switch fabric configuration fully supports all fabric services, including distributed name
service, registered state change notification, and alias service.
•
Distributed management
Management tools such as Advanced Web Tools, Fabric OS, and SNMP are available from both the
local switch and the remote switch. Switch management is routed through the Fibre Channel
connection; thus, no additional network connection is required between sites.
•
Support for interswitch links (ISLs)
Sites requiring redundant configurations can connect multiple E_Ports to remote sites by using multiple
gateways. Standard Fabric OS routing facilities automatically maximize throughput and provide
automatic failover during interruption on the WAN connection.
Using Remote Switch with a gateway
The Remote Switch feature operates in conjunction with a gateway. The gateway provides an E_Port
interface that links to the E_Port. After the link between the two E_Ports has been negotiated, the gateway
E_Port moves to passthrough mode and passes Fibre Channel traffic from the E_Port to the WAN.
The gateway accepts Fibre Channel frames from one side of a Remote Switch fabric, transfers them across
a WAN, and passes them to the other side of the Remote Switch fabric.
Remote Switch can be used for these types of gateway devices:
•
Fibre Channel over ATM
•
Fibre Channel over IP
•
Fibre Channel over SONET
•
Fibre Channel over DWDM
Most of these gateway devices have enough buffers to cover data transfer over a wide area
network (WAN). The switches on each side of the gateway must have identical configurations. Only
qualified SFPs should be used.
You must connect the fabrics through the gateway device, and make sure that the
configure
parameters
are compatible with the gateway device.
Summary of Contents for AE370A - Brocade 4Gb SAN Switch 4/12
Page 18: ...18 ...
Page 82: ...82 Managing user accounts ...
Page 102: ...102 Configuring standard security features ...
Page 126: ...126 Maintaining configurations ...
Page 198: ...198 Routing traffic ...
Page 238: ...238 Using the FC FC routing service ...
Page 260: ...260 Administering FICON fabrics ...
Page 280: ...280 Working with diagnostic features ...
Page 332: ...332 Administering Extended Fabrics ...
Page 414: ...398 Configuring the PID format ...
Page 420: ...404 Configuring interoperability mode ...
Page 426: ...410 Understanding legacy password behaviour ...
Page 442: ...426 ...
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Page 447: ......