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- Table of Contents
-
- 05-Network Connectivity
- 00-Preface
- 01-About the network connectivity configuration guide
- 02-MAC address table configuration
- 03-Ethernet link aggregation configuration
- 04-Port isolation configuration
- 05-VLAN configuration
- 06-Loop detection configuration
- 07-Spanning tree configuration
- 08-LLDP configuration
- 09-Layer 2 forwarding configuration
- 10-VLAN termination configuration
- 11-PPP configuration
- 12-L2TP configuration
- 13-Modem management configuration
- 14-3G and 4G modem management configuration
- 15-ARP configuration
- 16-IP addressing configuration
- 17-DHCP configuration
- 18-DHCPv6 configuration
- 19-DNS configuration
- 20-NAT configuration
- 21-IP performance optimization configuration
- 22-IPv6 basics configuration
- 23-GRE configuration
- 24-Tunneling configuration
- 25-IP forwarding basics configuration
- 26-Basic IP routing configuration
- 27-Static routing configuration
- 28-IPv6 static routing configuration
- 29-Policy-based routing configuration
- 30-IPv6 policy-based routing configuration
- 31-RIP configuration
- 32-RIPng configuration
- 33-Multicast overview
- 34-IGMP snooping configuration
- 35-MLD snooping configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 13-Modem management configuration | 56.96 KB |
Restrictions: Hardware compatibility with modem management
Modem management tasks at a glance
Managing a modem
About modem management
Modem is a widely used networking device. This chapter describes how to manage and control the modems connected to the device.
Restrictions: Hardware compatibility with modem management
|
Hardware series |
Model |
Product code |
Modem management compatibility |
|
WX1800H series |
WX1804H-PWR |
EWP-WX1804H-PWR-CN |
No |
|
WX2500H series |
WX2508H-PWR-LTE WX2510H-PWR WX2510H-F-PWR WX2540H WX2540H-F WX2560H |
EWP-WX2508H-PWR-LTE EWP-WX2510H-PWR EWP-WX2510H-F-PWR EWP-WX2540H EWP-WX2540H-F EWP-WX2560H |
Yes: EWP-WX2508H-PWR-LTE No: · EWP-WX2510H-PWR · EWP-WX2510H-F-PWR · EWP-WX2540H · EWP-WX2540H-F · EWP-WX2560H |
|
MAK series |
MAK204 MAK206 |
EWP-MAK204 EWP-MAK206 |
No |
|
WX3000H series |
WX3010H WX3010H-X-PWR WX3010H-L-PWR WX3024H WX3024H-L-PWR WX3024H-F |
EWP-WX3010H EWP-WX3010H-X-PWR EWP-WX3010H-L-PWR EWP-WX3024H EWP-WX3024H-L-PWR EWP-WX3024H-F |
No |
|
WX3500H series |
WX3508H WX3508H WX3510H WX3510H WX3520H WX3520H-F WX3540H WX3540H |
EWP-WX3508H EWP-WX3508H-F EWP-WX3510H EWP-WX3510H-F EWP-WX3520H EWP-WX3520H-F EWP-WX3540H EWP-WX3540H-F |
No |
|
WX5500E series |
WX5540E |
EWP-WX5510E EWP-WX5540E |
No |
|
WX5500H series |
WX5540H WX5560H WX5580H |
EWP-WX5540H EWP-WX5560H EWP-WX5580H |
No |
|
Access controller modules |
LSUM1WCME0 EWPXM1WCME0 LSQM1WCMX20 LSUM1WCMX20RT LSQM1WCMX40 LSUM1WCMX40RT EWPXM2WCMD0F EWPXM1MAC0F |
LSUM1WCME0 EWPXM1WCME0 LSQM1WCMX20 LSUM1WCMX20RT LSQM1WCMX40 LSUM1WCMX40RT EWPXM2WCMD0F EWPXM1MAC0F |
No |
|
Hardware series |
Model |
Product code |
Modem management compatibility |
|
WX1800H series |
WX1804H-PWR WX1810H-PWR WX1820H WX1840H |
EWP-WX1804H-PWR EWP-WX1810H-PWR EWP-WX1820H EWP-WX1840H-GL |
No |
|
WX3800H series |
WX3820H WX3840H |
EWP-WX3820H-GL EWP-WX3840H-GL |
No |
|
WX5800H series |
WX5860H |
EWP-WX5860H-GL |
No |
Modem management tasks at a glance
To manage a modem, perform the following tasks:
1. (Optional.) Enabling modem callback
Enable modem callback if the remote end connected to the modem requires a callback.
2. (Optional.) Issuing an AT command to a modem
Enabling modem callback
About this task
The callback function enables a modem to disconnect an incoming call and calls back the calling party on request.
Procedure
1. Enter system view.
system-view
2. Enable the callback function.
modem callback
By default, the callback function is disabled.
Issuing an AT command to a modem
Restrictions and guidelines
This task changes the modem operating state. Incorrect configuration can cause problems such as dial-up failure. When you perform this task, make sure you understand its impact on the modem access service.
To send AT commands to a modem, you must first place the modem in AT command mode. To confirm that you can send AT commands, enter sendat at. The modem will return OK or 0 if it is ready to accept AT commands. For more information about commonly used AT commands, see Layer 3—WAN Configuration Guide.
Procedure
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
3. Issue an AT command to a modem.
sendat at-string
One sendat command can issue one AT command. To send multiple AT commands to a modem, repeat the sendat command.
Troubleshooting modem faults
Symptom
An external modem is in an abnormal state. For example, the dial tone or busy tone keeps humming.
Solution
To resolve the issue:
1. Execute the shutdown and undo shutdown commands on the physical interface connected to the modem.
2. Power-cycle the modem.
3. If the issue persists, contact H3C Support.
