Cisco Cisco IOS Software Release 12.0(19)S

The ISE line cards provide the Layer 3 functionality of the Cisco 7500 edge routers at the high speeds 
of the Cisco 12000 series Internet router. 

The ISE line cards provide enhanced functionality in the backbone, such extended access control lists 
(ACLs) and committed access rate (CAR).

E3 interfaces do not support DSU subrate bandwidth.

CAR supports up to five “continue” actions on the same CAR rule tree. If there are more than five 
continue actions, the ISE line card CPU is involved.

Refer to the following Cisco Systems publications for additional information on the topics and 
technologies discussed in this document.

Access Control Lists: Overview and Guidelines, Cisco Release 12.0

Configuring IP Services, Cisco IOS Release 12.0. This is a chapter in the Network Protocols 
Configuration Guide, Part 1. See the section “Filter IP Packets”.

Configuring Committed Access Rate, Cisco IOS Release 12.0

Troubleshooting Guides, Cisco IOS Release 11.2

Cisco Remote Connection Management Feature Module: contains information on configuring DSU 
modes.

Internetworking Primer, for descriptions of encapsulation methods, connectivity and the use of 
DSU.

The following documents are part of the Internetworking Technology Overview:

Synchronous Data Link Control and Derivatives, for information on HDLC.