Figure 3-3 Headers Stripped By Some Encapsulation Types; Table 3-1 Summation Of Encapsulation Types - ZyXEL Communications Prestige 724 User Manual

Prestige 724 G.SHDSL CSU/DSU
ENCAP_HDLC_RFC2364
This encapsulation type converts HDLC to ATM and vice-versa. ENCAP_HDLC_RFC2364 maps one
HDLC VC to one ATM VC. Choose this encapsulation type if your LAN router provides PPP over HDLC
service and the remote peer provides PPP over ATM.
Refer to RFC 1662 for more information on PPP over HDLC and RFC 2364 for more information on
ENCAP_HDLC_RFC2364.
PPP
This encapsulation type supports ATM (PPP over ATM). Choose this encapsulation type if you want to set
up a channel for remote management. This channel will be used exclusively for remote management and
cannot be used to transfer data. The Prestige allows you to configure one channel for remote configuration.
PPP over ATM terminates on the Prestige. For more information, refer to section 3.4.

Figure 3-3 Headers Stripped By Some Encapsulation Types

The table shown next is a summative explanation of your encapsulation choices.
ENCAPSULATION
FRF8_
TRANSLATION
FRF8_
TRANSPARENT
FRF.5
ENCAP_
HDLC_RFC2364
PPP
3-4

Table 3-1 Summation of Encapsulation Types

PRESTIGE
CONVERTS
BETWEEN
frame relay & ATM
frame relay & ATM
frame relay & ATM
HDLC & ATM
N/A – This encapsulation terminates on the Prestige (remote management).
FRAME RELAY
HEADERS
STRIPPED
2 one frame relay VC & one ATM VC
1 one frame relay VC & one ATM VC
0 many frame relay VCs & one ATM VC
N/A one HDLC VC & one ATM VC
VC (VIRTUAL CIRCUIT) MAPPING
BETWEEN
Channel Setup