SFP validation failed on Nexus

If you come across to an issue like this you are about to fix before that you think. After plug in SFP (1 gig copper) on a SFP+ port i got an error saying “SFP validation failed”. N3K# sh int e1/45 Ethernet1/45 is down (SFP validation failed) Dedicated Interface Hardware: 100/1000/10000/40000 Ethernet, address: 00d7.8fa9.34b4 (bia Continue Reading »

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Next-Gen SAN reaching 32Gbps

Cisco MDS still evolving as a platform, and Cisco announced technology innovations for next-generation storage networking, giving 32Gb fibre channel performance across a unified MDS storage director and UCS. Cisco storage solutions can help the network adapt to new storage trends such as flash, NVMe, and converged infrastructure workloads. You can see here the full Continue Reading »

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F5 TMOS v13 is out!

F5 launched TMOS v13, What’s new? New Built-in TCP Profiles TCP Nagle “Auto mode” Diameter High Availability SIP and Diameter Connection Auto-Initialization Diameter Election Process Support Diameter In-Band Monitor ECDH and ECDSA DAG v2 Enhanced platform diagnostics for iSeries platforms Global VLAN based SYN flood protection You can read the full release notes here Tags: Continue Reading »

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