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298 CHAPTER 19: ATM CONFIGURATION COMMANDS
encapsulation
Syntax encapsulation aal5-encap
undo encapsulation
View PVC view/ATM Class view
Parameter aal5-encap: AAL5 encapsulation type; its possible values are as follows:
■ aal5mux: MUX encapsulation type
■ aal5nlpid: RFC1490 encapsulation type
■ aal5snap: LLC/SNAP (logical link control/subnet access protocol) encapsulation
type
Description Use the encapsulation command to specify ATM AAL5 encapsulation type for
PVC.
Use the
undo encapsulation command to restore the default.
By default, aal5snap encapsulation is adopted.
Note that:
■ Among aal5snap, aal5mux and aal5nlpid, only aal5snap encapsulation
supports InARP.
■ If InARP is enabled, you need to disable it before change AAL5 encapsulation
to aal5mux or aal5nlpid.
■ An ATM PVC can carry multiple protocols simultaneously, but certain types of
encapsulations may not support some applications (one or more of IPoA,
IPoEoA, PPPoA and PPPoEoA). When such cases occur, the system gives a
prompt.
Example # Specify the AAL5 encapsulation of PVC 1/32 on ATM 1/0 interface to aal5snap.
<Sysname>system-view
[Sysname] interface atm 1/0
[Sysname-Atm1/0] pvc 1/32
[Sysname-atm-pvc-Atm1/0-1/32] encapsulation aal5snap
PVC-NAME PVC name
INDEX Internal index of the PVC
ENCAP AAL5 encapsulation type of the PVC
PROT Upper protocol running on the PVC
INTERFACE Interface to which the PVC belongs
Table 27 Description on the fields of the display atm pvc-info command
Field Description