Dell FCX624-E Laptop User Manual


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120 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Managing your IronStack
5
PowerConnect# rconsole 2
Connecting to unit 2... (Press Ctrl-O X to exit)
rconsole-2@PowerConnect#show stack
ID Type Role Mac Address Prio State Comment
2 S FCX624P standby 0012.f2e2.ba40 0 local Ready
rconsole-2@PowerConnect# exit
rconsole-2@PowerConnect> exit
Disconnected. Returning to local session...
Establish a remote console session with stack unit 3.
PowerConnect# rconsole 3
Connecting to unit 3... (Press Ctrl-O X to exit)
rconsole-3@PowerConnect# show stack
ID Type Role Mac Address Prio State Comment
3 S FCX624P member 001b.ed7a.22c0 0 local Ready
rconsole-3@PowerConnect# logout
Disconnected. Returning to local session...
PowerConnect#
IronStack management MAC address
The IronStack is identified in the network by a single MAC address, usually the MAC address of the
Active Controller (the default). If a new Active Controller is elected, the MAC address of the new
Active Controller (by default) becomes the MAC address for the entire stack. However, you can
manually configure your stack to use a specified MAC address. Refer to “Manual allocation of the
IronStack MAC address” on page 120.
In an IronStack, the management MAC address is generated by the software, and is always the
MAC address of the first port of the Active Controller. This ensures that the management MAC
address remains consistent across stack reboots, and helps prevent frequent topology changes as
a result of protocol enable, disable, and configuration changes.
When you are configuring Layer 2 protocols on stack units, such as STP, RSTP, and MSTP, the
management MAC address of the Active Controller acts as the Bridge ID.
You can also configure the IronStack to retain its original MAC address, or wait for a specified
amount of time before assuming the address of a new Active Controller, using the Persistent MAC
Address feature (refer to “Persistent MAC address” on page 128).
NOTE
All physical IP interfaces on IronStack devices share the same MAC address. It is not recommended
to connect two or more physical IP interfaces between two routers.
Manual allocation of the IronStack MAC address
You can manually configure your IronStack to use a specific MAC address. This overrides the
default condition where the stack uses the MAC address of whatever unit is currently serving as
Active Controller.
NOTE
This command is useful for administration purposes, however it should be used with caution to
prevent duplication of MAC addresses.