7705 SAR Interfaces
156
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
Within a bonding group, the line used to identify the whole group is referred to as the
primary link. The other lines in the bonding group are referred to as secondary or
slave links. The supported bit rate over the bonding group is the sum of the actual
net bit rates on all lines in the group.
3.2.18.5 Configuration
All DSL ports are considered the functional equivalent of an Ethernet port and
support many of the same features and configuration commands. Data from the
router’s central network processor transmit and receive Ethernet packets to and from
the 7705 SAR-M module slot or 7705 SAR-Wx port.
If xDSL lines train in ATM bonding mode over ADSL2/2+, the VPI/VCI configured on
that port is used by the module or platform to interwork Ethernet packets into AAL5
LLC snap-bridged PDUs without user intervention.
All lines for both the 6-port DSL Combination module and the 8-port xDSL module
are configured from the ISAM via the G.994.1 (G.hs) handshake. All lines operate in
auto-detect mode; therefore, there are no individual line configurations required with
the exception of the configuration of VPI/VCI for ATM bonding and the configuration
of ADSL2/2+ Annex B support if ISDN support is required, on an xDSL interface.
DSL modules and ports automatically detect any existing configuration and will
attempt to bring pairs into service. For PTM bonding, the underlying transport
mechanism is Ethernet. For ADSL2+ ATM bonding, the underlying transport
mechanism is ATM, which requires a configured VPI/VCI. The default VPI/VCI on the
7705 SAR-M is 8/35, and only a single VC can be configured.
The only mode of operation for all SHDSL and xDSL pairs on the 7705 SAR-M is
bonded mode. On the 7705 SAR-Wx, the only mode for xDSL pairs is PTM bonded
mode.
Log files are created to record critical events during xDSL and SHDSL chipset
initialization and for any DSL-related operational events. The log file can be viewed
through the CLI or the NSP NFM-P for debugging and troubleshooting. The event
data can be directed to the default log file or to a specific user-configured log file.
The CLI commands to configure DSL are found under the config>port>dsl context.
To Next Page
Loading...
