Improve network parameters (#5177)

* Modify network parameters for current mainnet conditions

beacon_node/lighthouse_network/src/config.rs

@@ -350,7 +350,7 @@ impl Default for Config {
             enr_udp6_port: None,
             enr_quic6_port: None,
             enr_tcp6_port: None,
-            target_peers: 50,
+            target_peers: 100,
             gs_config,
             discv5_config,
             boot_nodes_enr: vec![],

beacon_node/lighthouse_network/src/discovery/mod.rs

@@ -59,7 +59,7 @@ const MAX_DISCOVERY_RETRY: usize = 3;
 /// Note: we always allow a single FindPeers query, so we would be
 /// running a maximum of `MAX_CONCURRENT_SUBNET_QUERIES + 1`
 /// discovery queries at a time.
-const MAX_CONCURRENT_SUBNET_QUERIES: usize = 2;
+const MAX_CONCURRENT_SUBNET_QUERIES: usize = 4;
 /// The max number of subnets to search for in a single subnet discovery query.
 const MAX_SUBNETS_IN_QUERY: usize = 3;
 /// The number of closest peers to search for when doing a regular peer search.

beacon_node/lighthouse_network/src/service/mod.rs

@@ -51,7 +51,7 @@ mod gossip_cache;
 pub mod gossipsub_scoring_parameters;
 pub mod utils;
 /// The number of peers we target per subnet for discovery queries.
-pub const TARGET_SUBNET_PEERS: usize = 6;
+pub const TARGET_SUBNET_PEERS: usize = 3;
 
 const MAX_IDENTIFY_ADDRESSES: usize = 10;
 

beacon_node/src/config.rs

@@ -1122,8 +1122,6 @@ pub fn set_network_config(
         config.target_peers = target_peers_str
             .parse::<usize>()
             .map_err(|_| format!("Invalid number of target peers: {}", target_peers_str))?;
-    } else {
-        config.target_peers = 80; // default value
     }
 
     if let Some(value) = cli_args.value_of("network-load") {