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Arista EOS MLAG Dual-Primary Detection & Split-Brain

Arista EOS MLAG Dual-Primary Detection & Split-Brain

Configure Arista EOS MLAG, understand why peer-link failure causes dual-primary, and use detection and recovery delays to prevent a split-brain outage

admin admin 2026-09-25
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MLNX-OS MLAG (sx_mlag) Configuration & Verification

MLNX-OS MLAG (sx_mlag) Configuration & Verification

Build MLAG on Mellanox/NVIDIA MLNX-OS switches: IPL port-channel, MLAG VIP and system MAC, mlag peer-address, plus the show commands that prove it is

admin admin 2026-09-19
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EVPN Multihoming vs MLAG: ESI, DF Election and Clos

EVPN Multihoming vs MLAG: ESI, DF Election and Clos

EVPN multihoming with ESI and DF election versus MLAG: compare peer links, BUM handling, aliasing and failure modes before you choose.

admin admin 2026-09-13
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MC-LAG ICCP Failure: ARP, PIM and ICL Behaviour

MC-LAG ICCP Failure: ARP, PIM and ICL Behaviour

After ICCP fails, ARP sync stops, PIM neighbours survive and the ICL carries the flood. Capture LACPDU, ARP and IGMP to prove each effect.

admin admin 2026-09-13
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Arista EOS MLAG Troubleshooting: Peer-Link and Dual-Primary

Arista EOS MLAG Troubleshooting: Peer-Link and Dual-Primary

Arista EOS MLAG diagnostics: show mlag output explained, reload-delay, dual-primary detection actions and recovering a peer-link failure without loops

admin admin 2026-09-12
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Arista EOS VARP: Active-Active Gateway with MLAG

Arista EOS VARP: Active-Active Gateway with MLAG

Configure VARP on Arista EOS with MLAG: shared virtual-router IP and virtual MAC on both peers, full CLI example, verification and troubleshooting.

admin admin 2026-09-05
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Arista EOS MLAG Step by Step: Peer Link and Domain Setup

Arista EOS MLAG Step by Step: Peer Link and Domain Setup

Configure Arista EOS MLAG step by step: peer link, MLAG VLAN and domain, member port channels, verification and dual-primary failure behaviour.

admin admin 2026-09-03
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Dell OS10 VLT Setup: Step-by-Step Virtual Link Trunking Guide

Dell OS10 VLT Setup: Step-by-Step Virtual Link Trunking Guide

Dell OS10 VLT setup: spanning tree, vlt-domain and VLTi discovery interfaces, primary-priority, vlt-mac, backup link, VLT port-channel and failover be

admin admin 2026-08-31
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MC-LAG Explained: ICCP, BFD and LACP System ID Deep Dive

MC-LAG Explained: ICCP, BFD and LACP System ID Deep Dive

MC-LAG deep dive: ICCP with BFD liveness, matching LACP system IDs and MC-AE, plus failure handling and Junos verification commands.

admin admin 2026-08-31
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Juniper MC-LAG ICCP Failure: Packet Loop and Troubleshooting Guide

Juniper MC-LAG ICCP Failure: Packet Loop and Troubleshooting Guide

Troubleshoot ICCP failures that cause packet loops on Juniper MC-LAG: loop mechanics, fixes per scenario, force-icl-down and arp-l2-validate tuning.

admin admin 2026-08-31
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