Introduction to n5000-uk9-kickstart.7.1.5.N1.1b.bin
This kickstart image provides the bootstrap environment for Cisco Nexus 5010/5020/5548UP/5596UP switches running NX-OS 7.1(5)N1(1b). Designed as a critical component in firmware upgrade processes, it enables non-disruptive upgrades while maintaining Fibre Channel over Ethernet (FCoE) service continuity. The 7.1.5.N1.1b revision specifically addresses memory leak vulnerabilities identified in earlier 7.1.x releases during SNMP interface counter collection.
Key Features and Improvements
1. Critical Vulnerability Fixes
- Resolves memory leak in SNMP polling of interface statistics (CSCur11599)
- Patches buffer overflow in FCoE NPV port initialization sequences
- Strengthens SSH session encryption with expanded cipher suite support
2. Upgrade Process Optimization
- Reduces ISSU (In-Service Software Upgrade) pre-check time by 30%
- Implements parallel FEX module firmware validation
- Adds automatic rollback mechanism for failed BIOS updates
3. Diagnostic Enhancements
- Includes real-time buffer utilization metrics in “show tech-support” output
- Generates predictive fan failure alerts through enhanced SNMP traps
Compatibility and Requirements
| Supported Hardware | Minimum System Image | Bootflash Requirement |
|---|---|---|
| Nexus 5010 | 7.1(5)N1(1b) | 256MB |
| Nexus 5548UP | 7.1(5)N1(1c) | 512MB |
| Nexus 5596UP | 7.1(5)N1(1d) | 512MB |
Critical Compatibility Notes:
- Requires NX-OS 7.1(4)N1(1a) as baseline for non-disruptive upgrades
- Incompatible with 40G QSFP+ modules using Cisco-FINISAR Rev 2.1 optics
- Mandatory NTP synchronization (±500ms) for certificate validation
Obtain the Software
Authorized users can download n5000-uk9-kickstart.7.1.5.N1.1b.bin through Cisco’s Software Center with valid service contracts. For verified distribution channels, visit https://www.ioshub.net to access the package with SHA-512 checksum verification.
Network administrators must verify dual supervisor module synchronization before installation. For environments requiring assisted deployment, contact Cisco TAC engineers through the service portal for compatibility validation.
n5000-uk9-kickstart.7.3.6.N1.1.bin: Cisco Nexus 5000 Series Kickstart Image 7.3.6.N1.1 Download Link
Introduction to n5000-uk9-kickstart.7.3.6.N1.1.bin
This kickstart image supports Nexus 5596UP/5548UP switches in NX-OS 7.3(6)N1 environments, introducing DDR4 memory controller optimizations and enhanced thermal management protocols. The 7.3.6.N1.1 version specifically targets hyperscale data center deployments requiring <50ms service restoration during firmware rollbacks.
Key Features and Improvements
1. Hardware Optimization
- Implements 6nm process-aware power management for ASIC components
- Adds DDR4 memory error correction improvements (40% reduction in correctable errors)
- Supports 64GB DRAM configurations on Nexus 5596UP-XL platforms
2. Security Enhancements
- Encrypts bootloader configuration files using AES-256-XTS
- Implements secure UEFI boot validation chain
- Patches privilege escalation vulnerabilities in serial console access
3. Upgrade Reliability
- Reduces FEX registration time by 55% during ISSU processes
- Adds automatic vPC role negotiation during parallel supervisor upgrades
- Implements dual-image verification for FPGA firmware updates
Compatibility and Requirements
| Supported Hardware | Minimum System Image | Bootflash Requirement |
|---|---|---|
| Nexus 5596UP | 7.3(6)N1(1a) | 1GB |
| Nexus 5548UP-XL | 7.3(6)N1(1b) | 1GB |
Critical Compatibility Notes:
- Requires SSD firmware 3.6.1+ for secure boot operations
- Incompatible with first-generation 40G copper splitter cables
- Mandatory FabricPath license activation before deployment
Obtain the Software
Cisco partners can download n5000-uk9-kickstart.7.3.6.N1.1.bin through the Commerce Workspace portal. For verified access points, visit https://www.ioshub.net to obtain the firmware with SHA-384 checksum verification.
Data center operators should validate power supply redundancy using “show environment power” commands before installation. For mission-critical environments, schedule maintenance windows through Cisco’s service portal for upgrade supervision.
: References Cisco Nexus 5000 Series upgrade documentation and bug resolution reports
