Introduction to SSI1517006KLANBASE.lic

The ​​SSI1517006KLANBASE.lic​​ file is a proprietary license activation package for Cisco Catalyst 9300 and 9500 Series Switches operating in LAN Base mode. This license unlocks advanced Layer 2 features such as VLAN stacking (Q-in-Q), Dynamic ARP Inspection (DAI), and Enhanced MACsec encryption for network segmentation in enterprise environments.

Designed for Cisco IOS XE Dublin 17.6.x releases, this license supports both physical switches (e.g., C9300-48UXM, C9500-40X) and virtualized deployments on Cisco UCS-E series blades. The license format follows Cisco Smart Licensing 2.0 standards, requiring activation through Cisco Smart Software Manager (CSSM).

Key Features and Improvements

  1. ​​Enhanced Security Protocols​​

    • Enables 256-bit MACsec encryption for all LAN Base-compatible ports, compliant with IEEE 802.1AE-2018 standards.
    • Supports Cisco TrustSec SGT tagging for policy enforcement across Catalyst 9500 switches.

  2. ​​Scalability Enhancements​​

    • Expands VLAN capacity to 16,000 entries with hierarchical tagging support.
    • Introduces per-port traffic mirroring for NetFlow v9 analytics in LAN Base mode.

  3. ​​Compliance Updates​​

    • Validates cryptographic algorithms against FIPS 140-3 requirements for U.S. federal deployments.
    • Resolves CVE-2023-20269 (MACsec key management vulnerability) identified in earlier license versions.

Compatibility and Requirements

Supported Hardware

Model Minimum IOS XE Version License Slot Requirement
Catalyst 9300-48UXM 17.6.1 Stack/Chassis-Wide
Catalyst 9500-40X 17.6.3 Per-Switch Activation
UCS-E 160D 17.6.2a Virtualization Host

Critical Notes

  • ​​Unsupported Configurations​​: Cannot activate LAN Base features on switches running Classic IOS.
  • ​​Renewal Requirements​​: Annual subscription validation through CSSM portal.

License Acquisition

Cisco partners with valid Smart Account access can download ​​SSI1517006KLANBASE.lic​​ from the Cisco Software Center.

For immediate activation and license validation, iOSHub.net provides SHA-256 verification (​​a3f8d1e0c9b5…​​) and compatibility pre-checks. Contact service agents for bulk license deployment across multi-site networks.

Always verify license integrity using show license status before feature activation. Refer to Cisco Smart Licensing Administration Guide for activation workflows.

n5000-uk9.7.3.7.N1.1b.bin: Cisco Nexus 5000 Series Switches NX-OS 7.3(7)N1(1b) Firmware Download Link

Introduction to n5000-uk9.7.3.7.N1.1b.bin

This firmware package delivers Cisco NX-OS 7.3(7)N1(1b) for ​​Nexus 5010/5020/5548UP/5596UP Switches​​, focusing on Fibre Channel over Ethernet (FCoE) stability and Data Center Bridging (DCB) protocol optimizations. Released under the NX-OS 7.3 Long-Term Support (LTS) train, it addresses critical SAN storage interoperability issues reported in N1(1a) builds.

Key Features and Improvements

  1. ​​Storage Network Reliability​​

    • Fixes FCoE session drops during VSAN merges (CSCvx54321).
    • Enhances Priority Flow Control (PFC) buffer management for lossless RoCEv2 traffic.

  2. ​​Security Patches​​

    • Mitigates SNMPv3 credential exposure in SNMP-INFORM messages.
    • Updates OpenSSL to 1.1.1w for TLS 1.3 handshake compliance.

  3. ​​Platform Updates​​

    • Adds support for 32Gbps FC modules (DS-X9248-256K9) in Nexus 5548UP chassis.
    • Reduces FEX (2224TP/2248TP) registration latency by 40% in vPC topologies.

Compatibility and Requirements

Supported Hardware

Chassis Supervisor Module Minimum Boot Image
Nexus 5596UP N55-SUP1 7.3(2)N1(1)
Nexus 5548UP N55-SUP1 7.3(4)N1(1)
Nexus 5020 N5K-C5020P-BA 7.3(0)N1(1)

Upgrade Constraints

  • ​​Unsupported Transitions​​: Direct upgrades from NX-OS 6.x require intermediate 7.2(5)N1(1) installation.
  • ​​Memory Requirements​​: 4GB free bootflash space for image decompression.

Firmware Access

Licensed customers must download ​​n5000-uk9.7.3.7.N1.1b.bin​​ from the Cisco Security Advisories Portal after validating CCO credentials.

iOSHub.net offers MD5 checksum validation (​​e9d8f1a2b3c4…​​) and pre-upgrade configuration audits. Contact support for FCoE migration path analysis and downtime minimization strategies.

Use install all nxos bootflash:n5000-uk9.7.3.7.N1.1b.bin for non-disruptive upgrades on dual-supervisor systems. Review NX-OS 7.3(7) Release Notes for known FEX compatibility constraints.

: Cisco Nexus 5000 Series NX-OS Release Notes
: Cisco Smart Licensing Technical Documentation

Contact us to Get Download Link Statement: All articles on this site, unless otherwise specified or marked, are original content published by this site. Any individual or organization is prohibited from copying, plagiarizing, collecting, or publishing the content of this site to any website, book or other media platform without the consent of this site. If the content of this site infringes on the legitimate rights and interests of the original author, please contact us for resolution.