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4.3.2.7 MTU
Route Management > IPv6 Interface Configuration > MTU page is used to display the maximum transmission unit (MTU) cache
for destinations that have returned an ICMP packet-too-big message along with an acceptable MTU to this switch.
4.3.3 ARP
4.3.3.1 Global Configuration
Route Management > ARP > Global Configuration page is used to set the timeout for ARP entry.
–
◆Age time
Sets the aging time for dynamic entries in the ARP cache. (Range: 300 - 86400 seconds; Default: 1200 seconds or
20 minutes) The ARP aging timeout can be set for any configured VLAN. The aging time determines how long dynamic entries
remain in 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. When a ARP entry expires, it is deleted from the cache and an ARP request packet is sent to
re-establish the MAC address.
4.3.3.2 Proxy ARP
Route Management > ARP > Proxy ARP page is used to enable Proxy ARP for specific VLAN interfaces.
–
◆Proxy ARP
Enables or disables Proxy ARP for specified VLAN interfaces, allowing a non-routing device to determine the
MAC address of a host on another subnet or network. (Default: Disabled) 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.
User's Manual of SGS-5240 Series Managed Switch
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