My Network Lab

Sharing my learning and personal experience in IT Networking.

Thursday, August 3, 2023

Change Cisco Switch Stack Member Number

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Here's a link in changing the interface name or renumber a Cisco stack member switch. There's a logical correlation between the swi...
Saturday, July 1, 2023

Packet Capture in a Cisco 4000 ISR

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I needed to perform a packet capture in our Cisco 4K Integrated Services Router (ISR) to troubleshoot a Session Initiation Protocol (SIP) pr...
Thursday, June 1, 2023

Cisco Network Convergence System (NCS) 540 Router

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Here's a link regarding the Cisco NCS 540 series routers and a link for the hardware installation guide.  The NCS 540 1RU router have ...
Sunday, May 21, 2023

Cisco ASR1K IOS-XE 17.6.3 Software Upgrade

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My family and I recently visited the Omniverse Museum and it houses a large collection of toys and memorabilia from DC, Marvel, Star Wars, H...
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John Lloyd Lagura
I'm John Lloyd Lagura, a passionate Network Engineer, tech blogger and a lifelong learner. I specialize in routing, switching, security, wireless and cloud technologies. I currently hold CompTIA Network+, Security+, ITIL Foundation, Cisco CCNP Security, CCNP Enterprise, CCNA Cyber Ops, Juniper JNCIA-Junos, JNCIA-SEC, JNCIA-Design, Fortinet Network Security Professional (NSE4).
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