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674 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Using FDP
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PowerConnect(config)# fdp run
Syntax: [no] fdp run
The feature is disabled by default.
Enabling FDP at the interface level
You can enable FDP at the interface level by entering commands such as the following.
PowerConnect(config)# int e 2/1
PowerConnect(config-if-2/1)# fdp enable
Syntax: [no] fdp enable
By default, the feature is enabled on an interface once FDP is enabled on the device.
Specifying the IP management address to advertise
When FDP is enabled, by default, the device advertises one IPv4 address and one IPv6 address to
its FDP neighbors. If desired, you can configure the device to advertise only the IPv4 management
address or only the IPv6 management address. You can set the configuration globally on a Layer 2
switch, or on an interface on a Layer 3 switch.
For example, to configure a Layer 2 switch to advertise the IPv4 address, enter the following
command at the Global CONFIG level of the CLI:
PowerConnect(config)# fdp advertise ipv4
To configure a Layer 3 switch to advertise the IPv6 address, enter the following command at the
Interface level of the CLI:
PowerConnect(config-if-2/1)# fdp advertise ipv6
Syntax: fdp advertise ipv4 | ipv6
Changing the FDP update timer
By default, a Dell PowerConnect device enabled for FDP sends an FDP update every 60 seconds.
You can change the update timer to a value from 5 – 900 seconds.
To change the FDP update timer, enter a command such as the following at the global CONFIG level
of the CLI.
PowerConnect(config)# fdp timer 120
Syntax: [no] fdp timer <secs>
The <secs> parameter specifies the number of seconds between updates and can be from 5 –
900 seconds. The default is 60 seconds.
Changing the FDP hold time
By default, a Dell PowerConnect device that receives an FDP update holds the information until one
of the following events occurs:
• The device receives a new update.
• 180 seconds have passed since receipt of the last update. This is the hold time.
Once either of these events occurs, the device discards the update.