General Configuration Using Local ManagementCSX400 and CSX400-DC User’s Guide 1573. Use the arrow keys to highlight the SAVE command field at the bottom of the screen and thenpress ENTER. The message “SAVED OK” displays.Setting the Maximum Transmission Unit (MTU)The Maximum Transmission Unit specifies the maximum packet size for all IP packets that aretransmitted.To select the MTU for a port, complete the following steps:1. Use the arrow keys to highlight the MTU option under Port Level Setup.2. ENTER an MTU value for the media used.3. Use the arrow keys to highlight the SAVE command field at the bottom of the screen, then pressENTER. The message “SAVED OK” displays.Enabling IP Routing Services on a PortThe ability to switch IP Routing Services on and off on a port-by-port basis, provides greatflexibility. On the same device, some ports can be routing IP traffic while other ports are bridgingit. As you are in transition from a bridged network to a routed network, this flexibility allows youto implement IP routing and test your routing configuration on a port-by-port basis. If necessary,you can temporarily disable the IP routing on any port without losing your configuration, or youcan temporarily switch from IP routing back to bridging.To enable IP Routing Services on a router port, complete the following steps:1. Use the arrow keys to highlight the IP Routing option under Port Level Setup.2. Use the ENTER key to toggle the entry to ENABLED.3. Use the arrow keys to highlight the SAVE command field at the bottom of the screen, and thenpress ENTER. The message “SAVED OK” displays.Enabling IP Forwarding on a PortBy default, IP Forwarding is disabled on each router port. Your device cannot begin forwarding IPdata packets on any router port until you enable IP Forwarding on that port.To enable IP Forwarding on a router port, complete the following steps:1. Use the arrow keys to highlight the IP Forwarding option.2. Use the ENTER key to toggle the entry to ENABLED.
