Adaptec 5325301507 Administration Guide - Page 43

Make Sure the Switch is Set to Autonegotiate Speed/Duplex Settings

Page 43 highlights

Configuring TCP/IP Settings Connect the SnapServer to the Network via a Switch While it is possible to connect a SnapServer to the network via a hub, this configuration unduly restricts the performance of the server for the following reasons: • Hubs do not support full-duplex. You can employ full-duplex only when the SnapServer is connected to a switch. • Hubs do not support Gigabit speeds. Attempting to force a Gigabit setting when the SnapServer is cabled to a hub will produce unintended consequences. 100 Mps/half duplex is the best performance possible when connected to a hub. Make Sure the Switch is Set to Autonegotiate Speed/Duplex Settings When the server is shipped from the factory, both ports are set to autonegotiate. This setting allows the SnapServer to base speed and duplex settings on the physical port connection to a switch. Thus, the switch/hub to which the SnapServer is cabled must be set to autonegotiate to initially connect to the server; otherwise, network throughput or connectivity to the server may be seriously impacted. To use fixed duplex settings (not applicable to gigabit), the same fixed setting must be set on the server and switch. Configure the Switch for Load Balancing If you select either the Switch Trunking or Link Aggregation network bonding configuration, be sure the switch is configured correctly for that bonding method. No switch configuration is required for Adaptive Load Balancing (ALB). Changing from Auto to a Fixed Setting You can configure a fixed setting on the Network > TCP/IP screen in the browserbased Administration Tool. If you change this setting, be sure to: • Configure the fixed setting in the Administration Tool first; and • Configure the switch to the same fixed setting. If you change the switch setting before you change the setting in the Administration Tool, the SnapServer may not connect to the network. The Link LED on the SnapServer front panel will be off or amber if the server is not connected to the network. Note AppleTalk (disabled by default) cannot be enabled when one or more Switch Trunking of Link Aggregation configurations exist. Chapter 2 Network Access to the Server 27

  • 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
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250

Configuring TCP/IP Settings
Chapter 2
Network Access to the Server
27
Connect the SnapServer to the Network via a Switch
While it is possible to connect a SnapServer to the network via a hub, this
configuration unduly restricts the performance of the server for the following
reasons:
Hubs do not support full-duplex. You can employ full-duplex only when the
SnapServer is connected to a switch.
Hubs do not support Gigabit speeds. Attempting to force a Gigabit setting when
the SnapServer is cabled to a hub will produce unintended consequences.
100 Mps/half duplex is the best performance possible when connected to a hub.
Make Sure the Switch is Set to Autonegotiate Speed/Duplex Settings
When the server is shipped from the factory, both ports are set to autonegotiate.
This setting allows the SnapServer to base speed and duplex settings on the
physical port connection to a switch. Thus, the switch/hub to which the SnapServer
is cabled
must
be set to autonegotiate to initially connect to the server; otherwise,
network throughput or connectivity to the server may be seriously impacted.
To use fixed duplex settings (not applicable to gigabit), the same fixed setting must
be set on the server and switch.
Configure the Switch for Load Balancing
If you select either the Switch Trunking or Link Aggregation network bonding
configuration, be sure the switch is configured correctly for that bonding method.
No switch configuration is required for Adaptive Load Balancing (ALB).
Changing from Auto to a Fixed Setting
You can configure a fixed setting on the
Network > TCP/IP
screen in the browser-
based Administration Tool. If you change this setting, be sure to:
Configure the fixed setting in the Administration Tool first; and
Configure the switch to the same fixed setting.
If you change the switch setting before you change the setting in the Administration
Tool, the SnapServer may not connect to the network. The
Link
LED on the
SnapServer front panel will be off or amber if the server is not connected to the
network.
Note
AppleTalk (disabled by default) cannot be enabled when one or more
Switch Trunking of Link Aggregation configurations exist.