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Stack Cabling Managing OmniSwitch 6850 Series Stacks
page 4-16 OmniSwitch 6850 Series Hardware Users Guide April 2010
Stack Cabling
Switches in a stack are connected to each other by stacking cables. The stacking cables come in various
sizes as listed below and provide high-speed, dual-redundant links between switches in a stack.
OS-6850 Stacking Cables
Stacking cables for OmniSwitch 6850 Series switches can be connected in any pattern. In other words, the
cable connected to stacking port A of one switch can be connected to either stacking port A or stacking
port B of the adjacent switch. However, it is strongly recommended that the cabling pattern remains
consistent across the stack. In addition, for a stack to have effective redundancy, a redundant stacking
cable must be installed between the upper-most and bottom-most switch at all times. This provides effec-
tive failover in the event of a stacking link or module failure within the stack.
The diagram below shows two recommended stacking cable patterns. For detailed information on assem-
bling a stack and connecting the cables, refer to Chapter 2, “OmniSwitch 6850 Series Chassis and Hard-
ware Components.”
Cable Description
OS6850-CBL-30 30 centimeters long stacking cable.
OS6850-CBL-60 60 centimeters long stacking cable.
OS6850-CBL-150 150 centimeters long stacking cable.
OS6850-CBL-300 300 centimeters long stacking cable. (Supported on the 24 port models only.)
- OmniSwitch 6850 Series 1
- Hardware Users Guide 1
- Contents 3
- About This Guide 9
- Unsupported Platforms 10
- Who Should Read this Manual? 11
- What is in this Manual? 11
- What is Not in this Manual? 11
- Documentation Roadmap 12
- Related Documentation 14
- Technical Support 15
- 1 OmniSwitch 6850 Series 17
- Availability Features 19
- Hot Swapping 20
- Hardware Monitoring 20
- • Server aggregation 21
- • Small Enterprise core 21
- Server Aggregation 22
- OmniSwitch 6850 23
- Small Enterprise Core 24
- 2 OmniSwitch 6850 Series 25
- Chassis and Hardware 25
- Components 25
- OmniSwitch 6850-24L 28
- steps for 29
- Maximum cable distance 31
- 100 meters 31
- OS6850-24L Specifications 31
- OmniSwitch 6850-48L 32
- OmniSwitch 6850-P24L 35
- OmniSwitch 6850-P48L 39
- OmniSwitch 6850-U24X 43
- OmniSwitch 6850-24 47
- Network Configuration 48
- OS6850-24 Specifications 50
- OmniSwitch 6850-48 51
- OS6850-48 Specifications 54
- OmniSwitch 6850-24X 55
- OmniSwitch 6850-48X 59
- OmniSwitch 6850-P24 62
- OmniSwitch 6850-P48 66
- OmniSwitch 6850-P24X 70
- “Configuring Ethernet” 71
- OmniSwitch 6850-P48X 74
- (RJ-45) RJ-45 77
- OS6850-P48X Specifications 77
- Status LEDs 78
- 10/100/1000 LEDs 79
- 100/1000 SFP LEDs 79
- 10000 XFP1 LEDs 79
- 10000 XFP2 LEDs 79
- Rear Panel 80
- Mounting the Switch 81
- Chassis Airflow 82
- Blank Cover Panels 83
- Installation Options 84
- Rack-Mounting the Switch 85
- Supported Cabling Patterns 87
- Booting a Stand-Alone Switch 90
- Power Cords 92
- Console Port 93
- Console Port Pinouts 95
- Power Supply Shelf 98
- PS-510W-AC Power Supply 99
- PS-510W-AC-E Power Supply 100
- PS-360W-AC Power Supply 101
- PS-360W-AC-E Power Supply 102
- PS-126W-AC Power Supply 103
- PS-120W-DC Power Supply 104
- Installing Power Supplies 105
- Tighten these screws 107
- 13.5 inches 109
- 17.6 inches 110
- MIN 1 TURN PER 1.5 110
- HALF TURN PER .75 110
- Connecting a DC Power Source 111
- DC Power Source 113
- OS6855 Power Supply 113
- Monitoring the Chassis 115
- Checking the Fan Status 116
- • Ethernet Port LEDs 117
- • Slot Indicator LED 117
- • System Status LEDs 117
- • Combo Port Status LEDs 117
- 3 Installing and Managing 119
- Power over Ethernet (PoE) 119
- In This Chapter 120
- Power over Ethernet Defaults 123
- Disabling PoE 124
- Setting Port Priority Levels 125
- Disabling Priority Disconnect 127
- Enabling Priority Disconnect 127
- 4 Managing OmniSwitch 133
- 6850 Series Stacks 133
- Roles Within the Stack 135
- Using the Chassis MAC Address 138
- Using Saved Slot Information 139
- Using Switch Uptime 140
- • Saved slot number 141
- Idle Module Role 143
- Pass-Through Mode 144
- Stack Cabling 148
- Slot Numbering 152
- Manual Slot Number Assignment 155
- Merging Stacks 158
- Reloading Switches 159
- -> reload primary 160
- -> reload secondary 161
- -> reload ni 3 163
- -> reload all 164
- Avoiding Split Stacks 166
- -> takeover 167
- Monitoring the Stack 170
- Management Modules 171
- A Regulatory Compliance 173
- 产品说明书附件 174
- Standards Compliance 176
- FCC Class A, Part 15 177
- Canada Class A Statement 177
- CISPR22 Class A warning 178
- Translated Safety Warnings 180
- Installation Warning 181
- Lithium Battery Warning 182
- Operating Voltage Warning 182
- Power Disconnection Warning 183
- Wrist Strap Warning 185
- Clase de seguridad 187
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