3
Configuring the 4G modem cellular interface
1. Enter system view.
system-view
2. Enter cellular interface view.
controller cellular cellular-number
3. Configure a description for the cellular interface.
description text
By default, the description for a cellular interface is interface name Interface, for example,
Cellular 2/4/0 Interface.
4. Channelize the cellular interface into an Eth-channel interface.
eth-channel channel-number
This command names the Eth-channel interface as eth-channel
cellular-number:channel-number.
Configure DDR and specify an IP address for the Eth-channel interface channelized from the
cellular interface of a 4G modem as needed.
5. Bring up the cellular interface.
undo shutdown
By default, a cellular interface is up.
Configuring an Eth-channel interface for a 4G
modem
Configuring basic parameters for an Eth-channel interface
1. Enter system view.
system-view
2. Enter Eth-channel interface view.
interface eth-channel interface-number
3. Configure a description of the Eth-channel interface.
description text
By default, the description for an Eth-channel interface is interface name Interface, for example,
Echannel 2/4/0:0 Interface.
4. Set the MTU for the Eth-channel interface.
mtu size
By default, the MTU for an Eth-channel interface is 1500 bytes.
5. Set the expected bandwidth of the Eth-channel interface.
bandwidth bandwidth-value
By default, the expected bandwidth (in kbps) of an Eth-channel is the interface baud rate
divided by 1000.
The baud rate of an Eth-channel interface is 100 Mbps.
6. Bring up the Eth-channel interface.
undo shutdown
By default, the Eth-channel interface is up.