IP Routing 3

Basic ARP Configuration

You can use the ARP General configuration menu to specify the timeout for ARP cache entries, or to enable Proxy ARP for specific VLAN interfaces.

Command Usage

•The aging time determines how long dynamic entries remain the cache. If the timeout is too short, the router may tie up resources by repeating ARP requests for addresses recently flushed from the table.

•End stations that require Proxy ARP must view the entire network as a single network. These nodes must therefore use a smaller subnet mask than that used by the router or other relevant network devices.

•Extensive use of Proxy ARP can degrade router performance because it may lead to increased ARP traffic and increased search time for larger ARP address tables.

Command Attributes

•Timeout – Sets the aging time for dynamic entries in the ARP cache. (Range: 300 - 86400 seconds; Default: 1200 seconds or 20 minutes)

•Proxy ARP – Enables or disables Proxy ARP for specified VLAN interfaces.

Web - Click IP, ARP, General. Set the timeout to a suitable value for the ARP cache, enable Proxy ARP for subnetworks that do not have routing or a default gateway, and click Apply.

Figure 3-120 ARP General

CLI - This example sets the ARP cache timeout for 15 minutes (i.e., 900 seconds), and enables Proxy ARP for VLAN 3.

Console(config)#arp-timeout 900

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Console(config)#interface vlan 3

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Console(config-if)#ip proxy-arp

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Console(config-if)#

 

 

 

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ES4649, ES4625 specifications

The Microsoft ES4625 and ES4649 are advanced enterprise-grade servers designed to meet the demands of modern data centers. They blend cutting-edge technology with robust performance, making them an ideal choice for businesses that require reliable processing capabilities, enhanced storage solutions, and improved energy efficiency.

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Overall, the Microsoft ES4625 and ES4649 offer a compelling combination of performance, flexibility, and security. They are engineered to support the increasingly complex demands of modern enterprise environments, making them a valuable investment for organizations seeking reliable, high-performing server solutions. Whether for virtualized workloads, cloud services, or heavy data computations, these servers are designed to deliver exceptional results.
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