R2511-HP MSR Router Series Layer 2 - WAN Command Reference(V5)

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<Sysname> system-view
[Sysname] interface serial2/0.2 p2p
[Sysname-Serial2/0.2]
link-protocol fr
Use link-protocol fr to enable frame relay on the interface.
Syntax
link-protocol fr [ ietf | nonstandard ]
Default
PPP is enabled.
Views
Interface view
Default command level
2: System level
Parameters
ietf: Specifies the default encapsulation format according to the IETF standard.
nonstandard: Specifies the nonstandard compatible encapsulation format.
Usage guidelines
If neither ietf nor nonstandard is specified, the command enables IETF frame relay.
The frame relay encapsulation can be either ietf or nonstandard. IETF frame relay encapsulation
conforms to RFC 1490. IETF frame relay encapsulation supports the IETF standard and is compatible with
dedicated encapsulation format of mainstream routers.
If you enable frame relay encapsulation in a certain format on a frame relay interface, the interface
encapsulates packets in the frame relay format before forwarding them. If the interfaces at both sides of
a link can recognize packets in both of the formats, they can communicate with each other even if they
configured with different frame relay encapsulation formats. Otherwise, you must enable frame relay
encapsulation in the same format on the two interfaces for the two interfaces to communicate.
Examples
# Enable frame relay on interface Serial 2/0 and select the nonstandard encapsulation compatible
format.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] link-protocol fr nonstandard
remark fr-de
Use remark fr-de to configure the DE bit marking action for FR frames.
Use undo remark fr-de to remove the action.
Syntax
remark fr-de fr-de-value
undo remark fr-de