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Dell S3048-ON User Manual

Dell S3048-ON
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Figure 40. ARP Learning via ARP Request
Beginning with Dell Networking OS version 8.3.1.0, when you enable ARP learning via gratuitous ARP, the system installs a new ARP entry,
or updates an existing entry for all received ARP requests.
Figure 41. ARP Learning via ARP Request with ARP Learning via Gratuitous ARP Enabled
Whether you enable or disable ARP learning via gratuitous ARP, the system does not look up the target IP. It only updates the ARP entry
for the Layer 3 interface with the source IP of the request.
Conguring ARP Retries
You can congure the number of ARP retries.
The default backo interval remains at 20 seconds. On the device, the time between ARP resend is congurable. This timer is an
exponential backo timer. Over the specied period, the time between ARP requests increases. This time increase reduces the potential for
the system to slow down while waiting for a multitude of ARP responses.
To set and display ARP retries, use the following commands.
Set the number of ARP retries.
CONFIGURATION mode
arp retries number
The default is 5.
The range is from 1 to 20.
Set the exponential timer for resending unresolved ARPs.
370
IPv4 Routing

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Dell S3048-ON Specifications

General IconGeneral
Rack Units1U
Form FactorRack-mountable
Input Voltage100-240V AC
Power Supply2 hot-swappable power supplies
ManagementCLI, Web, SNMP
Product TypeSwitch
MAC Address Table Size32K entries
Jumbo Frame SupportYes
Latency< 3 microseconds
Ports48 x 1GbE RJ45, 4 x 10GbE SFP+

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