Cisco Cisco IOS Software Release 12.2(4)XL Release Notes

No new hardware and software features are supported by the Cisco 2600 series for Cisco IOS 
Release 12.2(4) XL1 to Cisco IOS Release 12.2(4) XL5.

The following new hardware feature is supported by the Cisco 2600 series for Cisco IOS 
Release 12.2(4) XL:

G.SHDSL is ATM-based, multirate, high-speed (up to 2.3 MB), symmetrical digital subscriber line 
digital data transfer between a single customer premises equipment (CPE) subscriber and a central 
office. 

G.SHDSL is supported on the G.SHDSL WAN interface card, a 1-port WAN interface card (WIC) for 
Cisco 2600 series routers. 

The G.SHDSL WIC is compatible with the Cisco 6015, Cisco 6130, Cisco 6160, and Cisco 6260 Digital 
Subscriber Line Access Multiplexers (DSLAMs). The DSLAM must be equipped with G.SHDSL line 
cards that are compatible with the DSL service to be configured.

The G.SHDSL WIC supports ATM Adaptation Layer 2 (AAL2), ATM Adaptation Layer 5 (AAL5), and 
various classes of quality of service (QoS) for both voice and data service. 

Refer to the following document for further information:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xl/122x
l4/ft_gdsl4.htm

1 Port G.SHDSL WAN Interface Card

Yes

Yes

Yes

Yes

Voice and IP Quality of Service Features on the ADSL 
and G.SHDSL WAN Interface Cards

Yes

Yes

Yes

Yes