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C H A P T E R
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Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
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Release Notes for the Cisco ASR 903 Router
The Cisco ASR 903 Router runs the Cisco IOS XE software beginning with Release 3.5.0S. This
document provides information about the IOS XE software release for the Cisco ASR 903 Router
beginning with Release 3.6(0)S.
Note For information about Cisco IOS Release 3.5, see the Release Notes for Cisco IOS XE Release 3S .
The following sections provide an overview of the Cisco ASR 903 Router and Cisco IOS XE releases:
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Cisco ASR 903 Router Overview, page 1-1
• Feature Navigator, page 1-2
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Documentation Roadmap, page 1-2
• Determining the Software Version, page 1-2
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Upgrading to a New Software Release, page 1-2
• Deferrals, page 1-3
•
MIB Support, page 1-4
• Open Source License Notices, page 1-6
Cisco ASR 903 Router Overview
The Cisco ASR 903 Router is a fully-featured routing platform designed for the cost-effective delivery
of converged mobile and business services. With full redundancy, shallow depth, low power
consumption and high service scale, this 3-rack-unit (3RU) router is optimized for small aggregation and
remote point-of-presence (POP) applications. The Cisco ASR 903 Router provides a rich and scalable
feature set of Legacy, Timing, Carrier Ethernet, Layer 2 VPN (L2VPN) and Layer 3 VPN (L3VPN)
services in a compact package.
The Cisco ASR 903 Router is a fully modular platform with support for 6-Interface Modules (IMs), two
Route Switch Processor (RSP) slots, two power supplies and redundant fans. Cisco offers a wide choice
of LAN and WAN interfaces available in speeds ranging from nxDS0 to 10 Gigabit Ethernet. The design
of the Cisco ASR 903 Router delivers in-box hardware redundancy for all hardware components and
supports software redundancy with In Service Software Upgrade (ISSU) and Non-Stop Forwarding
(NSF) support.
Text Part Number: OL-26630-05