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Fabric OS Administrator’s Guide
53-1001763-02
Fibre Channel routing concepts
21
•
Edge fabric
An edge fabric is a Fibre Channel fabric with targets and initiators connected through the
supported platforms by using an EX_Port or VEX_Port.
•
Backbone fabric
A backbone fabric is an intermediate network that connects one or more edge fabrics. In a
SAN, the backbone fabric consists of at least one FC router and possibly a number of
Fabric OS-based Fibre Channel switches (see
Figure 70
on page 460).
•
Inter-fabric link (IFL)
The link between an E_Port and EX_Port, or VE_Port and VEX_Port, is called an
inter-fabric link
(IFL). You can configure multiple IFLs from an FC router to an edge fabric.
Figure 68
shows a metaSAN consisting of three edge fabrics connected through a Brocade
DCX with inter-fabric links.
FIGURE 68
A metaSAN with inter-fabric links
•
Logical SANs (LSANs)
An LSAN is defined by zones in two or more edge or backbone fabrics that contain the same
devices. You can create LSANs that span fabrics. These LSANs enable Fibre Channel zones to
cross physical SAN boundaries without merging the fabrics while maintaining the access
controls of zones.
An LSAN device can be a
physical device
, meaning that it physically exists in the fabric, or it can
be a
proxy device
.
Figure 69
on page 459 shows a metaSAN with a backbone consisting of one FC router
connecting hosts in edge fabrics 1 and 3 with storage in edge fabric 2 and the backbone fabric
through the use of LSANs. Three LSAN zones allow device sharing between the backbone
fabric and Edge Fabric 1, between Edge Fabric 1 and Edge Fabric 2, and between Edge Fabric
2 and Edge Fabric 3.
Edge
fabric 2
Host
Target
Target
Edge
fabric 1
Edge
fabric 3
Fibre
Channel
switch
E_Port
E_Port
E_Port
EX_Ports
IFL
IFL
FC router
Long distance IFL
Fibre
Channel
switch
Edge
fabric 2
Host
Target
Target
Edge
fabric 1
Edge
fabric 3
Fibre
Channel
switch
E_Port
E_Port
E_Port
EX_Ports
IFL
IFL
FC router
Long distance IFL
Fibre
Channel
switch
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Страница 54: ...14 Fabric OS Administrator s Guide 53 1001763 02 High availability of daemon processes 1 ...
Страница 74: ...34 Fabric OS Administrator s Guide 53 1001763 02 Basic connections 2 ...
Страница 102: ...62 Fabric OS Administrator s Guide 53 1001763 02 Audit log configuration 3 ...
Страница 156: ...116 Fabric OS Administrator s Guide 53 1001763 02 The authentication model using RADIUS and LDAP 5 ...
Страница 214: ...174 Fabric OS Administrator s Guide 53 1001763 02 Management interface security 7 ...
Страница 228: ...188 Fabric OS Administrator s Guide 53 1001763 02 Brocade configuration form 8 ...
Страница 276: ...236 Fabric OS Administrator s Guide 53 1001763 02 Creating a logical fabric using XISLs 10 ...
Страница 404: ...364 Fabric OS Administrator s Guide 53 1001763 02 ...
Страница 440: ...400 Fabric OS Administrator s Guide 53 1001763 02 Performance data collection 17 ...
Страница 464: ...424 Fabric OS Administrator s Guide 53 1001763 02 Disabling bottleneck detection on a switch 18 ...
Страница 480: ...440 Fabric OS Administrator s Guide 53 1001763 02 F_Port masterless trunking 19 ...
Страница 494: ...454 Fabric OS Administrator s Guide 53 1001763 02 Buffer credit recovery 20 ...
Страница 560: ...520 Fabric OS Administrator s Guide 53 1001763 02 Port indexing on the Brocade DCX 4S backbone C ...
Страница 574: ...534 Fabric OS Administrator s Guide 53 1001763 02 Hexadecimal overview E ...