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+---
+layout: post
+title: "Dev meeting"
+date: 2023-07-09 00:00:00 +0000
+tags: dev-meeting
+---
+
+## Meeting Summary
+
+The meeting took place on July 9th, 2023, at 2:00 PM UTC via Google Meet,
+with team members from different time zones joining to discuss key aspects of the Pactus project.
+
+## Overview to the Network Module
+
+The meeting began with an overview of the Network module in Pactus.
+This module uses [Libp2p](https://libp2p.io/) as its underlying network protocol.
+
+The Network module is agnostic about the content of the message and
+handles two types of messages: Gossip messages, which are broadcasted,
+and Stream messages, which are sent directly to a specific peer.
+The team discussed the relay nodes that enable communication for nodes behind NAT.
+Upon receiving a message, the module publishes an event.
+The two types of events are Gossip events and Steam events.
+
+![Network messages](/blog/images/2023-07-09-dev-meeting/network_messages.png)
+
+The team discussed the issue of Relay connections resetting, and explored solutions such as
+[hole punching](https://docs.libp2p.io/concepts/nat/hole-punching/) or using UDP and IPv6.
+
+Some users in the Testnet reported high network usage.
+The team discussed implementing metrics for LibP2P to monitor network usage effectively.
+The discussion related to this issue can be found [here](https://github.com/pactus-project/pactus/discussions/571).
+Additionally, the team discussed the customization of network resources,
+including setting limits for inbound and outbound connections.
+
+## Overview to the Sync Module
+
+Moving on, the Sync module was discussed.
+Unlike the Network module, the Sync module has full knowledge about the messages and packets.
+The module handles a range of message types, which can be found
+[here](https://github.com/pactus-project/pactus/blob/239bb98120053a220c6732989d9a4541ff0c4fc9/sync/bundle/message/message.go#L41C1-L52C2).
+
+It was suggested that we need to define metrics for each message type.
+There was also a discussion about the need for reducing the messages to optimize the use of network resources.
+
+The team decided to continue discussing these topics in future meetings.
+They also plan to work on improving the Network and Sync modules based on these discussions.