Dell PowerVault 51F Dell PowerVault 51F 8-Port Fibre Channel Switch Insta - Page 50

Two-Switch Sample Topology, Fabric Topology Sample With Three Connections

Get Dell PowerVault 51F PDF manuals and user guides View all Dell PowerVault 51F manuals
Add to My Manuals
Save this manual to your list of manuals

Page 50 highlights

FILE LOCATION: S:\SYSTEMS\Boxer\rev_i&t\English\50UWDa00\50UWDc20.fm Figure 2-1 shows the switch's F_Ports and FL_Ports and the corresponding N_Port and NL_Port connections on the device side. The switch connections are shown as they would be in a physical installation. Functionally, the switch becomes a fabric with every device connected to every other device by the fabric. Each connection is full duplex with transmissions up to 1 Gbps bandwidth simultaneously, in both directions, between the fabric and fabric-connected devices. Two-Switch Sample Topology The two-switch topology increases the number of connectivities and aggregate fabric bandwidth, as shown schematically in Figure 2-2. The switches are shown physically connected although the connections are transparent in the fabric. Functionally, the devices appear to be connected together directly. RAID A E_Port RAID B HOST3 HOST4 Switch A JBOD A HOST5 E_Port HOST1 HOST2 Switch B RAID B RAID A Figure 2-2. Fabric Topology Sample With Three Connections Between Two Switches When a fabric is initiated, or when a new switch is added to the fabric, the switches determine a least-cost path for each destination switch. This is done dynamically each time the fabric configuration changes and the results are stored in the switch's internal routing tables. NOTE: After a path has been determined, it is not rerouted, even though traffic volume may change over time, for each path to maintain in-order delivery. If the link fails, the path is rerouted. DELL CONFIDENTIAL - Preliminary 4/6/00 2-4 Dell PowerVault 51F 8-Port Fibre Channel Switch Installation and Troubleshooting Guide

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
2-4
Dell PowerVault 51F 8-Port Fibre Channel Switch Installation and Troubleshooting Guide
DELL CONFIDENTIAL - Preliminary
4/6/00
FILE LOCATION:
S:\SYSTEMS\Boxer\rev_i&t\English\50UWDa00\50UWDc20.fm
Figure 2-1 shows the switch’s F_Ports and FL_Ports and the corresponding N_Port
and NL_Port connections on the device side. The switch connections are shown as
they would be in a physical installation. Functionally, the switch becomes a fabric with
every device connected to every other device by the fabric.
Each connection is full duplex with transmissions up to 1 Gbps bandwidth simulta-
neously, in both directions, between the fabric and fabric-connected devices.
Two-Switch Sample Topology
The two-switch topology increases the number of connectivities and aggregate fabric
bandwidth, as shown schematically in Figure 2-2. The switches are shown physically
connected although the connections are transparent in the fabric. Functionally, the
devices appear to be connected together directly.
Figure 2-2.
Fabric Topology Sample With Three Connections
Between Two Switches
When a fabric is initiated, or when a new switch is added to the fabric, the switches
determine a least-cost path for each destination switch. This is done dynamically each
time the fabric configuration changes and the results are stored in the switch’s inter-
nal routing tables.
NOTE: After a path has been determined, it is not rerouted, even though traffic vol-
ume may change over time, for each path to maintain in-order delivery. If the link fails,
the path is rerouted.
Switch A
Switch B
E_Port
E_Port
RAID A
RAID B
HOST3
HOST4
HOST1
HOST2
RAID A
RAID B
JBOD A
HOST5