Installation manual

3-19
SIGNAMAX LLC • www.signamax.eu
CLI – Specify the management interface, and set the IP address mode to DHCP or
BOOTP, and then enter the “ip dhcp restart” command.
Renewing DCHP – DHCP may lease addresses to clients indefinitely or for a specific
period of time. If the address expires or the switch is moved to another network segment,
you will lose management access to the switch. In this case, you can reboot the switch or
submit a client request to restart DHCP service via the CLI.
Web – If the address assigned by DHCP is no longer functioning, you will not be able to
renew the IP settings via the web interface. You can only restart DHCP service via the
web interface if the current address is still available.
CLI – Enter the following command to restart DHCP service.
Enabling Jumbo Frames
The switch provides more efficient throughput for large sequential data transfers by
supporting jumbo frames up to 10 KB for the Gigabit Ethernet ports. Compared to
standard Ethernet frames that run only up to 1.5 KB, using jumbo frames significantly
reduces the per-packet overhead required to process protocol encapsulation fields.
Command Usage
To use jumbo frames, both the source and destination end nodes (such as a computer or
server) must support this feature. Also, when the connection is operating at full duplex, all
switches in the network between the two end nodes must be able to accept the extended
frame size. And for half-duplex connections, all devices in the collision domain would
need to support jumbo frames.
Console#config
Console(config)#interface vlan 1 4-186
Console(config-if)#ip address dhcp 4-338
Console(config-if)#end
Console#ip dhcp restart 4-340
Console#show ip interface 4-340
IP address and netmask: 192.168.1.254 255.255.255.0 on VLAN 1,
and address mode: DHCP
Console#
Console#ip dhcp restart 4-340
Console#