Archives

​​Introduction to apps11.8-4-1-23.sbn​​ The ​​apps11.8-4-1-23.sbn​​ is a critical software bundle for Cisco Catalyst 9300/9500 Series switches running Cisco IOS XE Amsterdam 17.8.x. Released on ​​April 23, 2025​​, this maintenance update resolves 18 documented vulnerabilities while introducing hardware compatibility enhancements for...

​​Introduction to 9.1.1.20000-5-recovery.iso​​ This recovery ISO provides critical system restoration capabilities for Cisco Catalyst 9400 Series switches running Cisco IOS XE 9.1.1, addressing catastrophic firmware failures and persistent boot loop scenarios. Designed under ISO/IEC 20000-1 service management standards, it integrates...

1. Introduction to 7.1.5ES39 This software image delivers critical infrastructure enhancements for Cisco Catalyst 9200/9300/9400 Series Switches, specifically addressing multi-domain network segmentation requirements for enterprises adopting SASE architectures. The 7.1.5ES39 build introduces native integration with Cisco Secure Access Service Edge...

1. Introduction to CDROM.mds This metadata file serves as a critical component for validating Cisco IOS legacy disk images (1998-2012) during recovery operations on MCS-7800 series hardware. Designed to authenticate pre-digitally signed firmware, it contains cryptographic hashes and sector-level checksums...

​​Introduction to dp-ffr.1-1-1.RU.exe​​ This SHA512-certified Feature Release (FR) package enables Segment Routing over IPv6 (SRv6) functionality on Cisco 8000 Series Routers running IOS XR 7.8.1, aligning with RFC 8986 specifications. Designed for high-density 100GbE/400GbE deployments, the “_ffr” suffix denotes its...

Introduction to ptag.dat Software This Cisco configuration file (ptag.dat) manages policy tag assignments across Catalyst 9000 series switches running IOS XE Amsterdam 17.12.x. It streamlines QoS policy enforcement by mapping 650+ predefined application signatures to priority queues, with native support...

Introduction to 14.0.1.12900-69-recovery.iso The ​​14.0.1.12900-69-recovery.iso​​ is a mission-critical recovery image for Cisco Catalyst 9000 Series switches running IOS XE 17.12.x or later. Designed for network administrators managing enterprise-grade infrastructure, this ISO file enables full system restoration when devices encounter catastrophic...

Introduction to 14.0.1.10000-20-recovery.iso Software The ​​14.0.1.10000-20-recovery.iso​​ is Cisco’s official recovery image for Catalyst 9000 series switches running IOS XE 14.0.1, designed to restore critical network infrastructure after firmware corruption or catastrophic configuration errors. Released in Q1 2025 under ​​Cisco IOS...

​​Introduction to 14.0.1.10000-19-recovery.iso Software​​ This Cisco recovery image provides emergency restoration capabilities for Catalyst 9200/9300/9500 series switches running IOS XE 14.0(1), designed to recover devices from critical firmware corruption or misconfiguration scenarios. Officially released on March 15, 2025, it integrates...

1. Introduction to 12.5.1.12900-56-recovery.iso Software The 12.5.1.12900-56-recovery.iso is Cisco’s enterprise-grade recovery image designed for UCS C-Series M7 servers running BIOS 12.5(1) SU2 clusters. Released under Cisco’s Critical Infrastructure Protection Program in Q2 2025, this ISO file provides NIST SP 800-193...