Introduction to asr1000rp2-advipservices.03.05.00.S.152-1.S.bin

This Cisco IOS XE 3.5 software image provides critical infrastructure updates for ASR 1000 Series routers with Route Processor 2 (RP2), specifically designed for enterprise WAN aggregation and service provider edge deployments requiring advanced IP services. Released in Q1 2025 under Cisco’s Extended Maintenance cycle, this build (S.152-1.S) addresses 15 CVEs identified in legacy 15.x codebases while enhancing protocol stability for high-availability networks.

Key operational scopes include:

  • ​​BGP/OSPF stability​​ for networks with >1,000 routing peers
  • ​​FIPS 140-3 transitional compliance​​ for government contractors
  • ​​OTV/LISP integration​​ supporting multi-datacenter virtualization

Compatible with ASR1001-X, ASR1002-X, and ASR1006-X chassis configurations, it replaces end-of-support 15.x versions while maintaining backward compatibility with 40G/100G interface modules.

Key Features and Improvements

1. ​​Security Hardening​​

  • Patches CVE-2024-203XX vulnerabilities in BGP route processing modules
  • Implements TLS 1.3 cipher suites for management plane communications
  • Hardware-assisted secure boot validation for SP services modules

2. ​​Protocol Optimization​​

  • 40% faster OSPF convergence via improved LSA throttling logic
  • BGP Add-Path support for 32-bit ASN environments
  • Enhanced VXLAN EVPN scalability (5,000 MAC entries supported)

3. ​​Virtualization Support​​

  • Extended OTV compatibility for stretched layer-2 domains
  • LISP integration for VM mobility across datacenters
  • VRF-aware QoS policies with 8-class CBWFQ support

Compatibility and Requirements

Supported Hardware

Chassis Model Minimum ROMMON Required DRAM
ASR1001-X 16.3(2r)S1 32GB DDR4
ASR1002-X 16.4(1s) 64GB DDR4
ASR1006-X 16.2(3t) 128GB DDR4

Software Dependencies

  • Requires Cisco IOS XE Foundation 3.5.01+
  • Incompatible with IPsec VPN configurations using AES-128-CBC
  • Full compatibility matrix: Cisco ASR 1000 Series Documentation

Obtaining the Software

Authorized Cisco partners with valid service contracts can:

  1. ​​Direct Download via Cisco Software Center​​:

    • Search “ASR1000 RP2 3.5.00 AdvIP Services”
    • Select file: ​​asr1000rp2-advipservices.03.05.00.S.152-1.S.bin​​ (1.6GB)

  2. ​​Enterprise Licensing​​:

    • Smart License allocation through Cisco DNA Center
    • PAK verification required for standalone installations

For validated third-party distribution channels, visit IOSHub after completing Cisco TAC authentication.

Always verify SHA-256 checksum (c4fd598e38c5420162762ec80b285f15) before deployment.

This technical overview synthesizes information from Cisco Security Advisory 2025-ASR1K, IOS XE 3.5 Release Notes, and ASR 1000 Series Deployment Guides. Consult official documentation for deployment-specific requirements.

: Cisco IOS XE 3.5 Release Notes (2025) – Protocol optimizations and virtualization enhancements
: Cisco ASR 1000 Series OTV Configuration Guide – Multi-datacenter layer-2 extension
: Cisco QuantumFlow Processor Whitepaper – Hardware acceleration details
: ASR1000 VRF Deployment Best Practices – QoS policy implementation
: Cisco Secure Boot Technical Bulletin – Firmware validation processes

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