Cisco Cisco IOS Software Release 12.0(19)S

In the concatenated versions of the ISE line cards, each physical port is assigned a single connection 
utilizing the entire bandwidth of that port. 

For information regarding hardware installation and features, refer to the appropriate hardware 
installation publication listed in 

The following concatenated line cards are supported for the Cisco 12000 series Internet routers:

The 4-port POS OC-12/STM-4 line card provides the Cisco 12000 series Internet router with four 
622-Mbps concatenated Packet-over-SONET (POS) interfaces on a single card. 

The 16-port POS OC-3/STM-1 line card provides the Cisco 12000 series Internet router with 16 
155-Mbps concatenated POS interfaces on a single card. 

In channelized line cards, each physical port can be configured to support multiple interfaces, or 
channels. Each channel is treated as a physical interface by the Cisco IOS software. Most of the 
functionality available on standard interfaces is also available on channelized interfaces. For example, it 
is possible to run different encapsulations on each of the different channels. Advanced functionality such 
as extended Access Control Lists (ACLs) and Committed Access Rate (CAR) can also be applied to 
connections using channelized interfaces.

For information regarding hardware installation and features, refer to the appropriate Cisco Systems 
publications listed in 

.

The following channelized line cards are supported for the Cisco 12000 series Internet routers:

The channelized 4-port OC-12/STM-4 to DS-3/E3 line card supports both SONET and SDH framing and 
provides DS-3/E3 aggregation for the Cisco 12000 series Internet router. For SDH, both AU-3 and AU-4 
mappings are supported. The line card interfaces with the Cisco 12000 series Internet router switch 
fabric and provides four OC-12/STM-4 duplex SC single-mode intermediate reach optical ports. Each 
of these ports can be configured with up to 12 channelized interfaces.