Brocade Communications Systems Gateway Manual de servicio descargar pdf (Pagina 91)

Target aggregation

Access Gateway mode is normally used as host aggregation. In other words, a switch in AG mode

aggregates traffic from a number of host systems onto a single uplink N_Port. Similarly, many targets

can be aggregated onto to a single uplink N_Port, as shown in the figure below. Target aggregation has

many applications. As one example, you can consolidate targets with various lower Fibre Channel

speeds (such as 1, 2, or 4 Gbps) onto a single high-speed uplink port to the core fabric. This reduces

the number of core fabric ports used by target devices and allows higher scalability.

FIGURE 15 Target aggregation

Target aggregation

Access Gateway Administrator's Guide 91

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1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 103 104

Access Gateway 1
Contents 3
Document conventions 7
Notes, cautions, and warnings 8
Brocade resources 9
Document feedback 10
About This Document 11
Key terms for Access Gateway 12
Access Gateway Basic Concepts 15
Virtual Fabrics support 21
Device authentication support 21
Supported Fabric OS commands 22
Password distribution support 23
Access Gateway port types 24
Port state description 28
Access Gateway mapping 29
Default port mapping 30
Adding F_Ports to an N_Port 35
F_Port Static Mapping 36
Device mapping 37
Static versus dynamic mapping 40
Device mapping to N_Ports 42
Disabling device mapping 42
Enabling device mapping 43
Pre-provisioning 43
Configuring device mapping 44
Mapping priority 45
Device mapping considerations 45
N_Port configurations 46
Unlocking N_Ports 47
Persisting port online state 47
D_Port support 48
Saving port mappings 49
Displaying current policies 51
How the ADS policy works 52
Allow lists 53
ADS policy considerations 55
How the APC policy works 55
Port Grouping policy 56
How port groups work 57
Removing a port group 58
Renaming a port group 59
Port Grouping policy modes 59
Rebalancing F_Ports 60
Enabling MFNM mode 61
Disabling MFNM mode 61
Device Load Balancing policy 62
Persistent ALPA policy 63
Persistent ALPA device data 64
Failover policy 65
Failover with port mapping 66
FIGURE 11 Failover behavior 67
Failover with device mapping 69
Failback policy 71
Failback example 72
FIGURE 12 Failback behavior 73
How trunking works 75
Trunk group creation 76
Setting up trunking 76
Trunk area assignment example 76
Assigning a trunk area 76
Enabling trunking 77
Disabling F_Port trunking 78
Monitoring trunking 78
QoS: Ingress rate limiting 82
Per-Port NPIV login limit 84
Performance Monitoring 85
End-to-end monitors 86
Frame monitors 86
Direct target attachment 89
Target aggregation 91
Access Gateway cascading 92
Verifying the switch mode 93
Connectivity to Cisco fabrics 94
Troubleshooting 97
53-1003126-02 100

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