LabPractise

Browser-based networking labs for hands-on practice.

Contact us:
[email protected]

[LabPractise @LabPractise]

@SuhasDasari We generally recommend keeping rd auto and verifying the generated RDs during pre-change checks, ensuring each leaf has a unique BGP router ID.

Different RDs across MLAG peers are expected, even with a shared VTEP IP. The key is to catch unintended or duplicate RD values.

[LabPractise @LabPractise]

#EVPN sessions are up. But did rd auto generate the RD you expected?

On Arista MLAG peers, the VTEP IP is shared, but the auto-generated RD depends on the BGP router ID.

Check the actual RD on both leaves:

show bgp evpn instance

Ever run into this?

#Arista #Networking

[LabPractise @LabPractise]

Welcome to LabPractise!

Get 20% off All-Access with code WELCOME

Subscribe within 10 days and keep the $19.99/month rate.

With LabPractise,open a pre-built topology in your browser and get straight to the CLI.

#Networkengineer #datacenter #networking

https://t.co/ODJdviWbFg

[LabPractise @LabPractise]

Topology from our free ECMP lab if you'd like to try it yourself:

https://t.co/XwNPyUjT1U

[LabPractise @LabPractise]

LACP on the access side. BGP ECMP on the uplinks.

Same topology, two different forwarding decisions.

maximum-paths 2 ecmp 2 doesn't mean both next hops are installed.

Check the #BGP paths, then the routing table. Configuration alone isn't verification. #Networking

[LabPractise @LabPractise]

Question for Network Engineer

Two ECMP next hops are installed in the FIB.

You run iperf3 -P 16 between the same two hosts, but almost all traffic uses one uplink.

Both links are healthy.

What would you check first?

#Networking #Networkengineer

[LabPractise @LabPractise]

show ip route shows two equal-cost next hops, but one uplink is doing most of the work.

#ECMP uses flow-based hashing, so a few heavy flows can skew utilization. Equal paths don’t always mean equal traffic.

Want to practice ECMP on #Arista EOS?

Free lab:https://t.co/XwNPyUjT1U

[LabPractise @LabPractise]

#MLAG + #EVPN-#VXLAN on Arista EOS.

2 spines, 4 leaves, two MLAG pairs.

eBGP underlay, EVPN overlay, Type-2 and Type-5 routes.

The topology is ready. You handle the configuration directly in the CLI, without building the lab environment first. #Networking #Networkengineering

[LabPractise @LabPractise]

https://t.co/f4OZi3z38n

[LabPractise @LabPractise]

Ever wanted to test EVPN ESI multihoming without spending hours setting up the lab?

2 spines, 4 leaves, dual-homed hosts.

Configure LACP, work through Ethernet segments, and see what’s happening in the Arista EOS CLI.

We’ve already built the topology. #Networking #EVPN #Arista

[LabPractise @LabPractise]

Two eBGP peers advertise 0.0.0.0/0. Both paths are valid, but EOS selects only one.

maximum-paths 2 is already configured.

What are we missing? #Networking #Networkengineer

[LabPractise @LabPractise]

Two spines, two ASNs, both advertising a default route to the leaf.

Would you expect both paths to be installed for ECMP?

What would you check first?

Explore #ECMP in our free browser lab: https://t.co/XwNPyUjlcm

#NetworkEngineering #LabPractise

[LabPractise @LabPractise]

Try your first networking lab directly from your browser.

The VLANs & Trunking lab is free to start.

Practice VLANs, SVIs, PortChannels, and 802.1Q trunking without local setup.

https://t.co/a6ltI7LGJx

#VLAN #NetworkEngineering

[LabPractise @LabPractise]

BGP route missing?

Don’t just check the command.

Check the neighbor state, received routes, policy behavior, and why the prefix is not in the BGP table.

https://t.co/Rxj2xEGlU2

#BGP #NetworkEngineering #Networking #Arista

[LabPractise @LabPractise]

LabPractise is now live.

Browser-based networking labs for hands-on configuration, validation, and troubleshooting.

Practice BGP, MLAG, MPLS, EVPN-VXLAN, VLANs, OSPF, and enterprise routing without local setup.

https://t.co/emA1Ny8O17

#Networkengineer #Networking

[LabPractise @LabPractise]

@LabPractise is built to make hands-on networking practice easier to access from the browser.

Skip setup. Start practicing.

Coming soon.

#NetworkEngineer #Networking