Introduction to nxos.7.0.3.I7.8.bin Software
The nxos.7.0.3.I7.8.bin is a critical maintenance release for Cisco Nexus 3000 and 3500 Series switches running NX-OS 7.0(3)I7 software. Designed specifically for non-XL hardware platforms with constrained storage, this August 2020 build addresses operational stability issues while maintaining compatibility with space-optimized network deployments.
As part of the 7.0(3)I7 Extended Maintenance Release (EMR) train, this version provides extended security updates until 2023 for Nexus 3172PQ/3172TQ switches and other non-XL models. The software package implements Cisco’s compact image technology, reducing bootflash consumption by 40% compared to standard NX-OS images.
Key Features and Improvements
-
Storage Optimization
Implements advanced file compression to maintain dual-image redundancy in 2GB bootflash environments, enabling safer in-service upgrades. -
VXLAN Enhancements
- Adds QoS policy support for VXLAN tunnel egress on 9300-EX/FX/FX2 switches
- Improves multicast handling in EVPN configurations
- Bug Resolution
- Fixes false-positive configuration incompatibility warnings during upgrades from 7.0(3)I2 releases (CSCuz23930)
- Addresses IPv6 neighbor discovery protocol stability issues
-
Security Updates
Includes PSIRT-validated patches for critical CVEs disclosed in Q2 2020 -
Hardware Compatibility
Extends support for 40G QSFP+ to 10G SFP+ cable breakout configurations
Compatibility and Requirements
| Supported Hardware | Minimum Bootflash | NX-OS Prerequisite |
|---|---|---|
| Nexus 3172PQ (non-XL) | 2GB | 6.0(2)A8(7b)+ |
| Nexus 3172TQ (non-XL) | 2GB | 6.0(2)A8(7b)+ |
| Nexus 3548-XL | 16GB | 7.0(3)I7(2)+ |
Critical Compatibility Notes:
- Requires full system reboot for activation (non-ISSU compliant)
- Incompatible with FEX configurations using 2348UPQ modules
- Smart Licensing must be pre-configured before upgrade
Obtain the Software Package
Certified partners can download nxos.7.0.3.I7.8.bin through authorized channels at https://www.ioshub.net. The platform provides:
- MD5/SHA-512 checksum verification aligned with Cisco PSIRT standards
- Compact image conversion tools for legacy deployments
- Cisco TAC-validated upgrade path analysis
For volume licensing or technical validation, contact our network solutions team through the portal’s service request system. All downloads include original Cisco cryptographic signatures for authenticity verification.
Note: This EMR release reaches end-of-security-support in Q4 2023. Verify bootflash capacity using dir | include bin command before installation, and always retain one working image for recovery purposes.
