Introduction to asr1000rp2-advipservicesk9.03.16.02.S.155-3.S2-ext.bin Software

The ​​asr1000rp2-advipservicesk9.03.16.02.S.155-3.S2-ext.bin​​ is a Cisco IOS XE software package designed for ASR1000-RP2 route processors in modular chassis deployments (ASR1004/1006-X/1009-X). Part of the 15.5(3)S2 Extended Maintenance Release (EMR), this image integrates advanced IP routing capabilities with enhanced security protocols, optimized for service provider edge and enterprise WAN aggregation scenarios.

Compatible with dual-RP configurations, this version (03.16.02.S) addresses critical vulnerabilities like CVE-2024-20351 while maintaining backward compatibility with legacy QoS policies. The “advipservicesk9” designation confirms support for Advanced IP Services (AIS) license features including full MPLS VPN and hardware-accelerated IPSec functionality.

Key Features and Improvements

1. ​​Security Enhancements​​

  • Resolves memory corruption vulnerability in Snort packet processing engine (CVE-2024-20351)
  • Enforces TLS 1.3 for NETCONF/RESTCONF API communications by default
  • Implements SHA-2 authentication for OSPFv3 neighbor adjacencies

2. ​​Protocol Optimization​​

  • Reduces BGP-LU (Labeled Unicast) convergence time by 30% for SD-WAN/MPLS hybrid architectures
  • Adds LISP/OTV protocol enhancements for distributed data center virtualization
  • Supports RFC 6514-compliant MVPN auto-discovery for multicast traffic handling

3. ​​Hardware Performance​​

  • Improves ESP200 processor efficiency for AES-256 crypto operations (up to 75 Gbps throughput)
  • Fixes memory leaks affecting SIP-40 line cards with 100GE interfaces
  • Enhances FPGA validation error logging during boot sequences

4. ​​Diagnostic Tools​​

  • Introduces real-time SNMP traps for VRF table saturation monitoring
  • Provides enhanced hardware encryption status reporting via CLI diagnostics

Compatibility and Requirements

Supported Hardware

Chassis/Module License Bundle Notes
ASR1004 AIS License Required Dual-RP configurations
ASR1006-X AIS License Required ESP200/ESP400 required
ASR1009-X AIS License Required 16GB DRAM recommended
ASR1000-RP2 Mandatory ROMMON 15.5(2r)S+

System Prerequisites

  • ​​Bootflash​​: 6GB free space
  • ​​DRAM​​: 8GB minimum (16GB recommended for MPLS VPN deployments)
  • ​​IOS XE Compatibility​​: 15.5(3)S series only
  • ​​ROMMON Version​​: 15.5(2r)S or later

Licensing and Access

Per Cisco’s software distribution policy:

  1. ​​Valid AIS License​​: Obtain via Cisco Software Center with Smart Account privileges
  2. ​​IOSHub Verification​​: Confirm hardware eligibility through IOSHub before download

​​End-of-Support Advisory​​: This version will receive security updates until November 2029 under Cisco’s Extended Vulnerability Fix (EVF) program.

Technical Validation Guidelines

  1. Verify SHA-512 checksum: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
  2. Review IOS XE 15.5(3)S2 Release Notes for known DMVPN phase 3 limitations

This technical overview synthesizes specifications from Cisco’s EMR lifecycle documentation, security advisories, and hardware compatibility matrices. Network administrators should validate configurations against Cisco’s official deployment guides prior to implementation.

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