Dell Networking S6000 Uživatelský manuál stáhnout pdf (Strana 434)

Figure 42. 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 43. 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.

Configuring ARP Retries

In Dell Networking OS versions prior to 8.3.1.0, the number of ARP retries is set to five and is not

configurable. After five retries, Dell Networking OS backs off for 20 seconds before it sends a new

request. Beginning with Dell Networking OS version 8.3.1.0, the number of ARP retries is configurable.

The default backoff interval remains at 20 seconds.

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.

IPv4 Routing

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Dell Networking S6000 Uživatelský manuál Strana 434