A “significant surge in traffic” resulted in a “partial outage” of the Ethereum-based layer-2 network Arbitrum on Friday.

The problem involved Arbitrum’s sequencer. Sequencers are key components of layer-2 networks, serving to process and order transactions in blocks that are then added to the core network — in this case, Ethereum.

The outage has lasted nearly two hours, according to Arbitrum’s status page. “We are working to resolve as quickly as possible and will provide a post-mortem as soon as possible,” the team wrote in a post on X.

Arbitrum’s sequencer suffered a two-hour outage in early June, as Blockworks previously reported. That outage was the result of a…

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