Alcatel-Lucent 7710 SR OS, Руководство по настройке интерфейса

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Interface Configuration
7710 SR OS Interface Configuration Guide Page 285
framing (E-1)
Syntax framing { no-crc-g704 | g704 | e1-unframed }
Context config>port>tdm>e1
Description
This command specifies the E-1 framing to be used with the associated channel.
Default
g704
Parameters
g704 — Configure the E-1 port for G.704 framing.
no-crc-g70 — Configures the E-1 for G.704 with no CRC4.
e1-unframed — Specifies E-1 unframed (G.703) mode for E-1 interfaces. This parameter also allows
the configuration of an unstructured E-1 channel on an ASAP or CES MDA. In G.704, timeslot 0
is used to carry timing information by a service provider, thus, only 31 slots are made available to
the end user. In G.703, all 32 time slots are available to the end user. Timing is provided by the
end user. When an e1-unframed channel is shutdown, it sends the AIS pattern to the far-end E-1
which does not react. The operational status remains up and no alarms are generated while the
near-end (shutdown) is operationally down. This is normal behavior since the G.703 option does
not have framing. G.703 framing is only applicable for FR, PPP, and CHDLC and CEM
encapsulations.
framing (DS3)
Syntax framing { c-bit | m23 }
Context config>port>tdm>ds3
Description
This command specifies DS-3 framing for the associated DS-3 port or channel.
Default
c-bit
Parameters
c-bit — Configures the DS-3 port/channels for C-Bit framing.
m23 — Configures the DS-3 port/channel for M23 framing.
framing (E-3)
Syntax framing { g751 | g832 }
Context config>port>tdm>e3
Description
This command specifies E-3 framing for the associated E-3 port or channel.
Default
E-3 non-ATM: g751 and cannot be changed.
E-3 ATM: g832 and cannot be changed.
Parameters
g751 — Configures the E-3 port/channel for g751 framing.
g832 — Configures the E-3 port/channel for g832 framing.