R2511-HP MSR Router Series Interface Configuration Guide(V5)

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Step Command Remarks
7. Set the link layer protocol.
link-protocol ppp
Optional.
The default is PPP.
8. Set the polling interval.
timer hold seconds
Optional.
The default is 10 seconds.
9. Set the MRU for the AUX
interface operating in the flow
mode.
phy-mru mrusize
Optional.
1700 bytes by default.
10. Set the intended bandwidth
for the AUX interface.
bandwidth bandwidth-value Optional.
11. Restore the default settings for
the AUX interface.
default
Optional.
12. Shut down the AUX interface.
shutdown
Optional.
An AUX interface is up by default.
Displaying and maintaining AUX interfaces
Task Command Remarks
Display information about the
specified AUX interfaces.
display interface [ aux ] [ brief
[ down | description ] ] [ | { begin
| exclude | include }
regular-expression ]
display interface aux
interface-number [ brief
[ description ] ] [ | { begin |
exclude | include }
regular-expression ]
Available in any view.
Clear statistics on a specified AUX
interface.
reset counters interface [aux
[ interface-number ] ]
Available in user view.
Configuring a USB 3G/4G modem
Overview
3G/4G modem modules include USB 3G/4G modem modules and SIC-3G modem modules.
• A USB 3G/4G modem module is hot swappable. It uses Cellular 0/0 or Cellular-Ethernet 0/0
interface view for management, which is a fixed interface view. Even if no USB 3G/4G modem
module is installed on the router, you can enter the interface view. The parameters configured in
Cellular 0/0 or Cellular-Ethernet 0/0 interface view are not removed when the USB 3G/4G
modem module is removed from the router.
• A SIC-3G modem module does not support hot swapping. When the SIC-3G modem module is
installed on the router, the system creates a cellular interface view according to the slot number of
the module. When the SIC-3G modem module is removed from the router, the cellular interface
view is removed.