Lower log level to debug for "Attestation is too old to broadcast, discarding it"

beacon-chain/p2p/broadcaster.go

@@ -138,12 +138,12 @@ func (s *Service) internalBroadcastAttestation(ctx context.Context, subnet uint6
 	}
 	// In the event our attestation is outdated and beyond the
 	// acceptable threshold, we exit early and do not broadcast it.
-	currSlot := slots.CurrentSlot(uint64(s.genesisTime.Unix()))
 	if err := helpers.ValidateAttestationTime(att.GetData().Slot, s.genesisTime, params.BeaconConfig().MaximumGossipClockDisparityDuration()); err != nil {
+		currSlot := slots.CurrentSlot(uint64(s.genesisTime.Unix()))
 		log.WithFields(logrus.Fields{
 			"attestationSlot": att.GetData().Slot,
 			"currentSlot":     currSlot,
-		}).WithError(err).Warning("Attestation is too old to broadcast, discarding it")
+		}).WithError(err).Debug("Attestation is too old to broadcast, discarding it")
 		return
 	}
 

beacon-chain/p2p/pubsub.go

@@ -13,6 +13,7 @@ import (
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/prysm/v5/cmd/beacon-chain/flags"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
 	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
 	pbrpc "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 )
@@ -147,6 +148,7 @@ func (s *Service) pubsubOptions() []pubsub.Option {
 		pubsub.WithPeerScoreInspect(s.peerInspector, time.Minute),
 		pubsub.WithGossipSubParams(pubsubGossipParam()),
 		pubsub.WithRawTracer(gossipTracer{host: s.host}),
+		pubsub.WithSeenMessagesTTL(time.Duration(params.BeaconConfig().SlotsPerEpoch*primitives.Slot(params.BeaconConfig().SecondsPerSlot)) * 2),
 	}
 
 	if len(s.cfg.StaticPeers) > 0 {