Table of Contents
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Initial Configuration
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Configuration overview....................................................................................................65
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Establishing a serial connection......................................................................................65
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Assigning permanent passwords ................................................................................... 66
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Configuring the device IP address.................................................................................. 67
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Changing the RBridge ID................................................................................................ 68
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Changing the VCS ID......................................................................................................69
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Setting the date and time ............................................................................................... 70
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Network device connections........................................................................................... 71
Configuration overview
This device can be configured in VCS mode, which is enabled by default.
In VCS mode, the device is part of an Ethernet fabric involving two or more VCS-enabled devices. VCS
technology embodies the concepts of distributed intelligence and logical chassis. Distributed intelligence
means that all configuration and destination information is automatically distributed to each member in
the fabric. Distributed intelligence has three major characteristics:
• The fabric is self-forming. When two VCS-enabled devices are connected, the fabric is automatically
created and the devices discover the common fabric configuration.
• The fabric is masterless. No single device stores configuration information or controls fabric
operations. Any device can fail or be removed without causing disruptive fabric downtime or delayed
traffic.
• The fabric is aware of all members, devices, and Virtual Machines (VMs). Automatic Migration of Port
Profiles (AMPP) supports VM migration to another physical server. If the VM moves, it is
automatically reconnected to all of its original resources.
Logical chassis means that the entire VCS fabric appears and can be managed as a single Layer 2
device. There are three major characteristics to logical chassis:
• Each physical device in the fabric can be managed as if it were a blade in a chassis. When a VCS-
enabled device is connected to the fabric, it inherits the configuration of the fabric and the new ports
become available immediately.
• You can manage the entire fabric from any device.
• You can manage the edge devices in the fabric as if they were a single device.
Establishing a serial connection
Perform all configuration tasks in this guide using a serial connection from a workstation or terminal.
The serial port can be used to connect to a workstation to configure the IP address for the device before
connecting it to a fabric or IP network.
Complete the following steps to create a serial connection to the device.
Brocade VDX 6940 Hardware Installation Guide
53-1003495-02
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