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Table 13. DSL Features Specifications
DSL Specifications
Multimode DSL (VDSL2 and ADSL2/2+)
(886VA and 887VA models)
●
Broadcom Chipset
●
Dying gasp
●
IEEE 802.1q VLAN tagging
●
Independent DSL firmware loading
VDSL2
●
ITU G.993.2 (VDSL2)
●
997 and 998 band plans
●
VDSL2 profiles: 8a, 8b, 8c, 8d, 12a, 12b, and 17a
●
U0 band support (25-276 kHz)
●
Ethernet PTM mode only based on IEEE 802.3ah 64/65 octet encapsulation
●
DELT Diagnostics Mode
ADSL2/2+
●
ADSL over basic telephone service with Annex A and Annex B ITU G. 992.1 (ADSL),
G.992.3 (ADSL2), and G.992.5 (ADSL2+)
●
ADSL over basic telephone service with Annex M (extended upstream bandwidth) G.992.3
(ADSL2) and G.992.5 (ADSL2+)
◦
Cisco 887VA-M is optimized for PSD Mask EU-64 M9.
◦
Cisco 887VA-M supports UK Annex M.
●
G.994.1 ITU G.hs
●
Reach-extended ADSL2 (G.922.3) Annex L for increased performance on loop lengths
greater than 16,000 feet from central office
●
T1.413 ANSI ADSL DMT issue 2 compliance
●
DSL Forum TR-067 conformity
●
Inpulse Noise Protection (INP) and extended INP
●
Downstream Power Back-Off (DPBO)
●
ATM mode only
ADSL specifications
(886 and 887 models)
●
ST-Microelectronics 20190 Chipset
●
ADSL over basic telephone service with Annex A and Annex B ITU G. 992.1 (ADSL),
G.992.3 (ADSL2), and G.992.5 (ADSL2+)
●
ADSL over basic telephone service with Annex M (extended upstream bandwidth) G.992.3
(ADSL2) and G.992.5 (ADSL2+)
◦
Cisco 887-M is optimized for PSD Mask EU-64 M9
◦
Cisco 887M supports UK Annex M only with Huawei 5300 DSLAM and its EADB line
card with customer-premises-equipment (CPE) firmware Version 4.0.17
●
G.994.1 ITU G.hs
●
Reach-extended ADSL2 (G.922.3) Annex L for increased performance on loop lengths
greater than 16,000 feet from central office
●
T1.413 ANSI ADSL DMT issue 2 compliance
●
DSL Forum TR-067 conformity
●
Does not provide interoperability with carrierless amplitude modulation/phase modulation
(CAP)-based ADSL lines
●
Dying gasp
●
IEEE 802.1q VLAN tagging with Cisco IOS Software Release 15.1(1)T or later
VDSL2 specifications
(887V models)
●
Broadcom Chipset
●
ITU G.993.2 (VDSL2) over basic telephone service only
●
997 and 998 band plans, over basic telephone service only
●
VDSL2 profiles supported: 8a, 8b, 8c, 8d, 12a, 12b, and 17a
●
U0 band support (25276 kHz)
●
Ethernet PTM mode only based on IEEE 802.3ah 64/65 octet encapsulation
●
DELT Diagnostics Mode
●
IEEE 802.1q VLAN tagging
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