prysm-pulse/shared/params/network_config.go

package params

import "time"

// NetworkConfig defines the spec based network parameters.
type NetworkConfig struct {
	GossipMaxSize                   uint64        `yaml:"GOSSIP_MAX_SIZE"`                    // GossipMaxSize is the maximum allowed size of uncompressed gossip messages.
	MaxChunkSize                    uint64        `yaml:"MAX_CHUNK_SIZE"`                     // MaxChunkSize is the the maximum allowed size of uncompressed req/resp chunked responses.
	AttestationSubnetCount          uint64        `yaml:"ATTESTATION_SUBNET_COUNT"`           // AttestationSubnetCount is the number of attestation subnets used in the gossipsub protocol.
	AttestationPropagationSlotRange uint64        `yaml:"ATTESTATION_PROPAGATION_SLOT_RANGE"` // AttestationPropagationSlotRange is the maximum number of slots during which an attestation can be propagated.
	TtfbTimeout                     time.Duration `yaml:"TTFB_TIMEOUT"`                       // TtfbTimeout is the maximum time to wait for first byte of request response (time-to-first-byte).
	RespTimeout                     time.Duration `yaml:"RESP_TIMEOUT"`                       // RespTimeout is the maximum time for complete response transfer.
	MaximumGossipClockDisparity     time.Duration `yaml:"MAXIMUM_GOSSIP_CLOCK_DISPARITY"`     // MaximumGossipClockDisparity is the maximum milliseconds of clock disparity assumed between honest nodes.

	// DiscoveryV5 Config
	ETH2Key      string // ETH2Key is the ENR key of the eth2 object in an enr.
	AttSubnetKey string // AttSubnetKey is the ENR key of the subnet bitfield in the enr.
}

var defaultNetworkConfig = &NetworkConfig{
	GossipMaxSize:                   1 << 20, // 1 MiB
	MaxChunkSize:                    1 << 20, // 1 MiB
	AttestationSubnetCount:          64,
	AttestationPropagationSlotRange: 32,
	TtfbTimeout:                     5 * time.Second,
	RespTimeout:                     10 * time.Second,
	MaximumGossipClockDisparity:     500 * time.Millisecond,
	ETH2Key:                         "eth2",
	AttSubnetKey:                    "attnets",
}

// BeaconNetworkConfig returns the current network config for
// the beacon chain.
func BeaconNetworkConfig() *NetworkConfig {
	return defaultNetworkConfig
}