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Chun Fung Wong
Nov 7, 20242 min read
Tweaking the Cisco Nexus 9000 TCAM
In a recent project, I had the opportunity to work with something "new" yet familiar. During a customer data center (DC) refresh project,...
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Chun Fung Wong
Oct 8, 20244 min read
Continue the Network Automation Journey using AWX
I have been working on a project recently to assist a customer in upgrading thousands of devices in their network. Managing such a...
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Chun Fung Wong
Sep 22, 20244 min read
Automating Cisco Device Upgrades with Ansible: A Playbook Journey
As networks scale and new software updates become available, keeping Cisco devices up-to-date is crucial for maintaining optimal...
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Chun Fung Wong
Dec 19, 20232 min read
DHCP Relay in EVPN-VXLAN
In the previous posts, I have discussed the construction of an EVPN VXLAN fabric using Cisco NDFC. A critical aspect often overlooked,...
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Chun Fung Wong
Dec 15, 20236 min read
Building a simple Arista MPLS L2/L3 VPN lab with Segment Routing - Part 2
Configurations Ok, as I mentioned in part 1, this is a reminder for myself so I will just dive into the configurations of the core...
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Chun Fung Wong
Dec 2, 20232 min read
Building an L2TP/IPSec RAS server with Cisco C1111 Router
Embarking on a home project can often lead to unexpected challenges, especially when troubleshooting resources are limited. In this post,...
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Chun Fung Wong
Nov 23, 20233 min read
Building a Cisco NX-OS EVPN-VXLAN Multisite Fabric with Cisco NDFC - Part 4
Finishing the Multisite Fabric By now, you should be able to navigate through the multisite fabric hierarchy. If you haven't completed...
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Chun Fung Wong
Nov 21, 20232 min read
Building a simple Arista MPLS L2/L3 VPN lab with Segment Routing - Part 1
The Driver As an enterprise network architect, I have discovered a hidden tool through my early years of experience in service provider...
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Chun Fung Wong
Nov 18, 20235 min read
Building a Cisco NX-OS EVPN-VXLAN Multisite Fabric with Cisco NDFC - Part 3
Configuring NDFC for Multisite Fabric The first time opening up NDFC service after installation, you will be asked to decide which mode...
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Chun Fung Wong
Nov 18, 20234 min read
Building a Cisco NX-OS EVPN-VXLAN Multisite Fabric with Cisco NDFC - Part 2
Bringing up the ND cluster with NDFC service Installing ND (Nexus Dashboard) VM Installing and configuring NDFC is pretty...
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Chun Fung Wong
Nov 18, 20232 min read
Building a Cisco NX-OS EVPN-VXLAN Multisite Fabric with Cisco NDFC - Part 1
The Intention Cisco is positioning NDFC (which is under ND, a.k.a. Nexus Dashboard) as the replacement for DCNM - Data Center Network...
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