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Fabric OS Administrator’s Guide
53-1002446-01
Fibre Channel routing concepts
24
FIGURE 77
EX_Port phantom switch topology
All EX_Ports or VEX_Ports connected to an edge fabric use the same xlate domain ID for an
imported edge fabric; this value persists across switch reboots and fabric reconfigurations.
If you lose connectivity to the edge fabric because of link failures or the IFL being disabled, xlate
domains remain visible. This prevents unnecessary fabric disruptions caused by xlate domains
repeatedly going offline and online due to corresponding IFL failures. To remove the xlate domain
from the backbone, refer to
“Identifying and deleting stale xlate domains.”
The combination of front domains and xlate domains allows routing around path failures, including
path failures through the routers. The multiple paths to an xlate domain provide additional
bandwidth and redundancy.
There are some differences in how the xlate domain is presented in the backbone fabric. The
backbone xlate domains are topologically connected to FC routers and participate in FC-FC routing
protocol in the backbone fabric. Front domains are not needed in the backbone fabric. As in the
case of an xlate domain in an edge fabric, backbone fabric xlate domains provide additional
bandwidth and redundancy by being able to present themselves as connected to single or multiple
FC routers with each FC router capable of connecting multiple IFLs to edge fabrics.
Use the fcrXlateConfig command to display or assign a preferred domain ID to a translate domain
or, in some scenarios, to prevent the creation of an unnecessary xlate domain. Refer to the
Fabric
OS Command Reference
for more details about this command.
Identifying and deleting stale xlate domains
If a remote edge fabric goes unreachable, the xlate domains created in other edge fabrics for this
remote edge fabric are retained and not removed unless there is any disruption in the local edge
fabric.
You can use the fcrXlateConfig command to identify and remove these stale xlate domains without
disrupting the fabric.
Fabric 1
Target 1'
Target 3'
Target 2'
Front domain 1
(FC router 1)
Front domain 2
(FC router 2)
Xlate domain 1
(Fabric 2)
Xlate domain 2
(Fabric 3)
Host 1
Содержание Fabric OS v7.0.1
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Страница 100: ...62 Fabric OS Administrator s Guide 53 1002446 01 Configuring FLOGI time handling of duplicate PWWN 3 ...
Страница 152: ...114 Fabric OS Administrator s Guide 53 1002446 01 The authentication model using RADIUS and LDAP 5 ...
Страница 214: ...176 Fabric OS Administrator s Guide 53 1002446 01 Management interface security 7 ...
Страница 228: ...190 Fabric OS Administrator s Guide 53 1002446 01 Brocade configuration form 8 ...
Страница 248: ...210 Fabric OS Administrator s Guide 53 1002446 01 Validating a firmware download 9 ...
Страница 334: ...296 Fabric OS Administrator s Guide 53 1002446 01 Setting up TI over FCR sample procedure 12 ...
Страница 360: ...322 Fabric OS Administrator s Guide 53 1002446 01 Encryption and compression example 14 ...
Страница 374: ...336 Fabric OS Administrator s Guide 53 1002446 01 Access Gateway N_Port failover with FA PWWN 16 ...
Страница 404: ...366 Fabric OS Administrator s Guide 53 1002446 01 ...
Страница 430: ...392 Fabric OS Administrator s Guide 53 1002446 01 Ports on Demand 18 ...
Страница 470: ...432 Fabric OS Administrator s Guide 53 1002446 01 Disabling QoS zone based traffic prioritization 21 ...
Страница 502: ...464 Fabric OS Administrator s Guide 53 1002446 01 Buffer credit recovery 23 ...
Страница 544: ...506 Fabric OS Administrator s Guide 53 1002446 01 Displaying the range of output ports connected to xlate domains 24 ...
Страница 554: ...516 Fabric OS Administrator s Guide 53 1002446 01 Fabric configurations for interconnectivity A ...
Страница 572: ...534 Fabric OS Administrator s Guide 53 1002446 01 Hexadecimal overview D ...
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