NEXPEED NR304G-4W User’s Manual
NexComm Systems, Inc. 40 PAGE
Configuring Link Encapsulation and Keepalive
SHDSL Link Encapsulation
The NR304G-4W and the remote device must agree upon the type of link encapsulation
used. The NR304G-4W unit must encapsulate all outbound packets before sending them
across the WAN, and the remote device must decapsulate them before forwarding the
packets to the local network.
The NR304G-4W supports various encapsulation types such as HDLC, PPP, Frame-
Relay, ETHDLC and NTNHDLC(a protocol for communicating with Net-to-Net
technologies products. It supports interoperability for both base-level layers 1 and 2 and
Net-to-Net technologies’s innovative feature sets.).
Related Commands : interface <ifname> encap / show interface
The default encapsulation type is HDLC (High-Level Data Link Control), which
provides the synchronous framing and error detection functions of HDLC without
windowing or retransmission.
You can define the encapsulation method by using the following command:
Note:
If the interface is not enabled, this command is ignored. First, you must enable
routing or bridging on the interface.
COMMAND
(conf)# interface <ifname> encap hdlc|ppp|frelay|ethdlc|ntnhdlc
Parameters
<ifname> - interface name
hdlc : HDLC protocol
ppp : PPP protocol
frelay: Frame-Relay protocol
ethdlc : ETHDLC protocol, it is used to connect a modem
ntnhdlc: NTNHDCL protocol, it is used to connect the Net-to-Net
technologies’s products.
To verify your changes, use the following command.
COMMAND
(conf)# show interface [<ifname>]
Note:
If you omit the interface name, all interfaces are listed.
