Damien Arnodo Damien
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  • Joined on 2025-08-22
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Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:25:29 +00:00
417b3fc245 Add comprehensive host interface configuration documentation
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:24:56 +00:00
383a631d92 Update topology to use binds for host interface configuration
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:24:01 +00:00
3eedb0786c Add host4 network interfaces config with LACP bonding for VLAN 78
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:23:56 +00:00
25cc7a4dae Add host3 network interfaces config with LACP bonding for VLAN 40
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:23:47 +00:00
7c5d65558b Add host2 network interfaces config with LACP bonding for VLAN 34
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:20:39 +00:00
9ddf594862 Add host1 network interfaces config with LACP bonding
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 17:04:34 +00:00
31b52d2417 Fix host bonding: use mode 4 instead of mode 802.3ad for Alpine Linux
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 16:53:11 +00:00
34b6b7bdd6 Fix command syntax - remove invalid 'show mlag interfaces Port-Channel1'
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 16:39:23 +00:00
c3aef36a8e Update troubleshooting guide
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-29 12:42:55 +00:00
fb682fdb19 Add comprehensive EVPN-VXLAN troubleshooting guide
Damien commented on issue Damien/arista-evpn-vxlan-clab#11 2025-11-28 16:20:59 +00:00
Host LACP bonding - Hybrid approach: ifupdown for bond + ip commands for VLAN

LACP Fallback - Explanation

What Problem Does It Solve?

Without LACP Fallback:

  • Port-Channel waits for full LACP negotiation before forwarding ANY traffic
  • If LACP PDUs are delayed…
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-28 16:20:38 +00:00
ba3ed79363 Add LACP fallback configuration to leaf configs
Damien commented on issue Damien/arista-evpn-vxlan-clab#11 2025-11-28 16:17:57 +00:00
Host LACP bonding - Hybrid approach: ifupdown for bond + ip commands for VLAN

Status Update - Partial Fix Applied

Completed:

  • ✅ leaf1.cfg - LACP fallback added
  • ✅ leaf2.cfg - LACP fallback added

Remaining (need same 2-line addition to Port-Channel1): -…

Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-28 16:17:41 +00:00
413960b8e0 Fix leaf2: Add LACP fallback to Port-Channel1 for dual-homing
Damien commented on issue Damien/arista-evpn-vxlan-clab#11 2025-11-28 16:16:51 +00:00
Host LACP bonding - Hybrid approach: ifupdown for bond + ip commands for VLAN

Fix Applied - Adding LACP Fallback to All Leafs

Fix: Add LACP fallback configuration to Port-Channel1 on all 8 leaf switches.

interface Port-Channel1
   port-channel lacp fallback…
Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-28 16:16:28 +00:00
50434e7cc7 Fix leaf1: Add LACP fallback to Port-Channel1 for dual-homing
Damien commented on issue Damien/arista-evpn-vxlan-clab#11 2025-11-28 16:15:45 +00:00
Host LACP bonding - Hybrid approach: ifupdown for bond + ip commands for VLAN

SOLUTION FOUND - LACP Fallback Configuration

After reviewing Arista MLAG best practices, the issue is that Port-Channel1 needs LACP fallback or the port-channel needs to allow the link to…

Damien commented on issue Damien/arista-evpn-vxlan-clab#11 2025-11-28 16:15:30 +00:00
Host LACP bonding - Hybrid approach: ifupdown for bond + ip commands for VLAN

NEW THEORY - Check LACP System Priority

Comparing with the working srl-evpn-mh-lab example, there might be missing LACP configuration on the switch side.

On Arista switches with MLAG,…

Damien commented on issue Damien/arista-evpn-vxlan-clab#11 2025-11-28 16:13:35 +00:00
Host LACP bonding - Hybrid approach: ifupdown for bond + ip commands for VLAN

Root Cause Confirmed

Checking the configs and topology:

Topology (evpn-lab.clab.yml): Hosts are STILL configured for dual-homing with LACP bonding (mode 802.3ad) Leaf configs: All…

Damien pushed to fix-bgp-and-mlag at Damien/arista-evpn-vxlan-clab 2025-11-28 16:01:15 +00:00
bcf76e4cac Add 'no shutdown' to Port-Channel1 on leaf8 - ALL CONFIGS COMPLETE