Everything tagged network-configuration, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
The post argues that although Layer 7 protocols are often difficult to parse, enforcing Layer 7 policies is usually simple enough that Beeline can remove the service proxy from the critical path for 89% of real-world policies.
Simplifying network configurations with IPv6 /64 prefixes reduces address waste and hardware requirements, but OSPFv3 mandates advertising loopback prefixes as /128s.
Ali Bahadır Coşkun advanced his EVPN/VXLAN skills using free netlab-powered labs, completing both basic and advanced VXLAN/IRB/anycast configurations.
Leo Fleskes inquired about the potential of using netlab for live network device configuration, which, while theoretically possible, may encounter practical challenges.
After updating the SR Linux LDP configuration template, MPLS/VPN was added to the netlab SR Linux MPLS features, but unexpected complexities arose despite the seemingly straightforward process.
Naveen Kumar Devaraj highlights that Arista's EOS default ARP timeout is 4 hours and MAC aging is 5 minutes, a configuration not unique to Arista, prompting curiosity about the origin of these defaults.
The netlab release 26.04 introduces support for Extreme Networks EXOS, new BGP attributes, and static route support on various platforms, enhancing network configuration and management capabilities.
Petr Ankudinov suggests using containerlab's startup-config option for initial lab deployments, but historical concerns with Cisco IOS configurations lead to using startup configurations as a last resort.
The author shares their experience with configuring EVPN MAC-VRFs on Cisco IOS/XE and successfully implementing IP-VRFs with transit VXLAN segments, highlighting the challenges faced with the configuration process.
Cisco IOS layer-2 images change interface MAC addresses when altering switchport status, requiring a normalization script to ensure proper configuration, despite a bug in the IOLL2 template.
In this Cisco Tech Talk episode, the setup of a voice VLAN on Catalyst 1200 and 1300 series switches is demonstrated, highlighting differences from the Catalyst 1000, including configuration steps, security recommendations, and verification commands.
Configuring voice VLANs on Cisco Catalyst switches enhances call quality by separating voice data from other traffic, with differences in setup between Catalyst 1000 and newer 1200/1300 series due to their distinct operating systems and functionalities.
The netlab release 25.12 introduces enhanced Cisco IOS/XR support, VXLAN-over-IPv6 on Arista EOS, new BGP community lists, and improved validation features for network configuration and testing.
Dmitry Klepcha's document guides users through building data center fabric labs with netlab, from basic IP networks to advanced EVPN/VXLAN setups, with accessible GitHub resources.
Irish software developer rConfig has launched Version 8 of its network configuration platform, featuring a new distributed architecture, enhanced security, broader vendor support, and scalability for over 20,000 devices.
This episode delves into advanced DNS topics, including security measures, reverse DNS, and various DNS record types, along with discussions on Raspberry Pi and Happy Eyeballs.
The video provides a step-by-step guide on configuring Central Web Authentication (CWA) on the Cisco 9800 Wireless LAN Controller, focusing on setup, key configurations, and common troubleshooting tips.
Germaine McLoud from Cisco demonstrates upgrading Catalyst 8000 routers to a new Cisco iOS XE image, detailing steps from downloading to verifying the upgrade.
Fernando Dinino, a Cisco technical consultant, discusses troubleshooting PBST simulation failures in networks running MST and PBST, emphasizing the importance of consistent spanning tree configurations to prevent network disruptions.
This guide explains configuring NLS LDP on Cisco NCS 540 using the ISIS protocol, detailing both manual and automatic methods for enabling LDP on interfaces.
At AutoCon2, Daniel Wade emphasized the importance of various testing methods to safely implement network configuration changes, reducing associated risks.
The recommendation for easy IS-IS deployments is to use only level-2 routing, which is explained in the Optimize Simple IS-IS Deployments lab exercise.
This video tutorial by Diva from Zot explains configuring passive ID using an agent as a provider to map user and IP data via Active Directory, specifically using I version 3.3 and Windows Active Directory 2022.
Sometimes using suboptimal BGP practices, like disaggregated prefixes, is necessary when dealing with ISPs unfamiliar with BGP communities.
FRRouting does not automatically select the correct IBGP source interface without explicit configuration; any success is coincidental.
This video by Hyro Bandia from Cisco's TAR team explains configuring route leaks between global routing tables and VRFs on Cisco ASR routers to enhance connectivity, optimize resources, and improve security.
Today's IPv6 Buzz discusses the operational model differences and similarities between DHCP and DHCPv6, emphasizing the importance of proper configuration and thorough testing.
This video by Rajendran Ramasami from Cisco demonstrates configuring Wi-Fi 6E on the 9800 Wireless LAN Controller in transition mode, highlighting key settings and security requirements for optimal performance across multiple frequency bands.
OSPF and IS-IS routing protocols require configuration adjustments for optimal performance in modern Ethernet networks due to their original design for older network architectures.
The first IS-IS lab exercise involves configuring IS-IS routing for IPv4, correcting vendor defaults, and learning about OSI addresses.
A year after launching BGP labs, the creator introduces online IS-IS configuration labs with versatile platform support.
This demonstration outlines configuring a RADIUS server on a Cisco 9800 controller, focusing on server setup and group configuration.
Combining BGP confederations and AS override may lead to a BGP routing loop, causing an endlessly growing AS-PATH.
A proposed modification to OSPFv3 could eliminate the need for IPv4 point-to-point transit networks.
This video guides users through configuring and monitoring REP Rings in Cisco Catalyst Center, assuming devices are pre-discovered.
Setting up GitHub codespaces for netlab examples simplifies testing IPv4 next-hop details for EBGP sessions, streamlining the process significantly.
RFC 4264 describes BGP wedgies as configurations with multiple stable outcomes, where non-deterministic BGP convergence can occur.
