Equal-cost multi-path allows a router to insert more than one path to a destination in the routing table to enable load balancing. Here’s how ECMP works and how to configure it in OSPF. Equal-cost ...

今回は、ネットワークスペシャリスト試験の最難関、午後2問題の解説シリーズ第2弾です。令和6年度 春期 問1の【設問2】にフォーカスし、VXLANを支える物理ネットワーク、いわゆるアンダーレイネットワークの核心に迫ります。

Abstract: In this paper, an optimal traffic engineering technique is proposed that uses only unmodified OSPF shortest path routing with stock ECMP (Equal-Cost MultiPath) load-balancing. The main ...

There was already an issue reported regarding ECMP in OSPF SR to @odd22 and I know there is some work going on here, e.g. a backport of ECMP support from IS-IS to support it together with OSPF SR. I ...

I haven't been able to find a definitive reason to go with one versus the other for a LAN connection. From my understanding it seems to lean in the favor of LACP since a link failure doesn't cause ...

OSPFは「とりあえず疎通」までは行けても、運用・増設・更改のタイミングで一気に事故りやすいプロトコルです。特にハマりどころは、だいたい次の3つに収束します。 コスト設計：速い回線を入れたのに経路が変わらない／意図した経路制御にならない ...

thierrydevriendt changed the title OSPF - Redistribute static with multipath OSPF/BGP - Not all ECMP static routes are redistributed on Nov 19, 2025 ...