Cisco Cisco IOS Software Release 12.4(6)T
ADSL HWICs
Contents
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Cisco IOS Release 12.4(6)T
Contents
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Restrictions for ADSL HWICs
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ADSL HWICs can be inserted only into onboard HWIC-enabled slots on Cisco routers. Initially,
these routers are the Cisco 1800 series (modular), the Cisco 2800 series, and the Cisco 3800 series
integrated services routers.
these routers are the Cisco 1800 series (modular), the Cisco 2800 series, and the Cisco 3800 series
integrated services routers.
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The ISDN interfaces on HWIC-ADSL-B/ST and HWIC-ADSLI-B/ST are data only.
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ATM adaption layer 2 (AAL2) is not supported.
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ADSL HWICs do not support dual latency. When the ADSL link is intended to support both voice
and data traffic simultaneously, the link should be configured for either all fast-path data or all
interleave data with an interleave depth of zero to insure that latency is minimized. In addition, the
total supported data rate must be reduced to adjust for the reduced coding gain, which is usually
present with high-latency traffic.
and data traffic simultaneously, the link should be configured for either all fast-path data or all
interleave data with an interleave depth of zero to insure that latency is minimized. In addition, the
total supported data rate must be reduced to adjust for the reduced coding gain, which is usually
present with high-latency traffic.
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The following command is not supported by ADSL HWICs:
–
clock rate
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The following ISDN command is not supported by HWIC-ADSL-B/ST or HWIC-ADSLI-B/ST:
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leased-line
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Loop back functionality is not supported.
Information about ADSL HWICs
This section provides information about the ADSL HWICs feature.
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ADSL Features
Supported ADSL features are as follows:
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Provides ADSL high-speed digital data transmissions between the customer premises equipment
(CPE) and the central office (CO).
(CPE) and the central office (CO).