Add ASN info lookup and periodic routing table statistics

- Add handle and description columns to asns table
- Look up ASN info using asinfo package when creating new ASNs
- Remove noisy debug logging for individual route updates
- Add IPv4/IPv6 route counters and update rate tracking
- Log routing table statistics every 15 seconds with IPv4/IPv6 breakdown
- Track updates per second for both IPv4 and IPv6 routes separately

internal/routewatch/app.go

@@ -4,6 +4,7 @@ package routewatch
 
 import (
 	"context"
+	"fmt"
 	"log/slog"
 	"os"
 	"strings"
@@ -23,6 +24,11 @@ type Config struct {
 	MaxRuntime time.Duration // Maximum runtime (0 = run forever)
 }
 
+const (
+	// routingTableStatsInterval is how often we log routing table statistics
+	routingTableStatsInterval = 15 * time.Second
+)
+
 // NewConfig provides default configuration
 func NewConfig() Config {
 	return Config{
@@ -88,6 +94,9 @@ func (rw *RouteWatch) Run(ctx context.Context) error {
 	peerHandler := NewPeerHandler(rw.db, rw.logger)
 	rw.streamer.RegisterHandler(peerHandler)
 
+	// Start periodic routing table stats logging
+	go rw.logRoutingTableStats(ctx)
+
 	// Start streaming
 	if err := rw.streamer.Start(); err != nil {
 		return err
@@ -125,6 +134,32 @@ func (rw *RouteWatch) Run(ctx context.Context) error {
 	return nil
 }
 
+// logRoutingTableStats periodically logs routing table statistics
+func (rw *RouteWatch) logRoutingTableStats(ctx context.Context) {
+	// Log stats periodically
+	ticker := time.NewTicker(routingTableStatsInterval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			stats := rw.routingTable.GetDetailedStats()
+			rw.logger.Info("Routing table statistics",
+				"ipv4_routes", stats.IPv4Routes,
+				"ipv6_routes", stats.IPv6Routes,
+				"ipv4_updates_per_sec", fmt.Sprintf("%.2f", stats.IPv4UpdatesRate),
+				"ipv6_updates_per_sec", fmt.Sprintf("%.2f", stats.IPv6UpdatesRate),
+				"total_routes", stats.TotalRoutes,
+				"unique_prefixes", stats.UniquePrefixes,
+				"unique_origins", stats.UniqueOrigins,
+				"unique_peers", stats.UniquePeers,
+			)
+		}
+	}
+}
+
 // NewLogger creates a structured logger
 func NewLogger() *slog.Logger {
 	level := slog.LevelInfo

internal/routewatch/routingtablehandler.go

@@ -70,13 +70,6 @@ func (h *RoutingTableHandler) HandleMessage(msg *ristypes.RISMessage) {
 
 			// Add route to routing table
 			h.rt.AddRoute(route)
-
-			h.logger.Debug("Added route to routing table",
-				"prefix", prefix,
-				"origin_asn", originASN,
-				"peer_asn", peerASN,
-				"path", msg.Path,
-			)
 		}
 	}
 
@@ -86,13 +79,7 @@ func (h *RoutingTableHandler) HandleMessage(msg *ristypes.RISMessage) {
 		prefixID := uuid.NewSHA1(uuid.NameSpaceURL, []byte(prefix))
 
 		// Withdraw all routes for this prefix from this peer
-		count := h.rt.WithdrawRoutesByPrefixAndPeer(prefixID, peerASN)
-
-		h.logger.Debug("Withdrew routes from routing table",
-			"prefix", prefix,
-			"peer_asn", peerASN,
-			"routes_removed", count,
-		)
+		h.rt.WithdrawRoutesByPrefixAndPeer(prefixID, peerASN)
 	}
 }