diff --git a/network/src/peer_registry.rs b/network/src/peer_registry.rs
index 9f3e55536b..6d8cd27af0 100644
--- a/network/src/peer_registry.rs
+++ b/network/src/peer_registry.rs
@@ -76,6 +76,7 @@ impl PeerRegistry {
         session_type: SessionType,
         peer_store: &mut PeerStore,
     ) -> Result<Option<Peer>, Error> {
+        debug!("start accept peer {:?}", session_id);
         if self.peers.contains_key(&session_id) {
             return Err(PeerError::SessionExists(session_id).into());
         }
@@ -112,6 +113,7 @@ impl PeerRegistry {
         peer_store.add_connected_peer(remote_addr.clone(), session_type);
         let peer = Peer::new(session_id, session_type, remote_addr, is_whitelist);
         self.peers.insert(session_id, peer);
+        debug!("end accept peer {:?}", session_id);
         Ok(evicted_peer)
     }
 
diff --git a/network/src/services/dump_peer_store.rs b/network/src/services/dump_peer_store.rs
index 735ace3a71..a36a2b35b6 100644
--- a/network/src/services/dump_peer_store.rs
+++ b/network/src/services/dump_peer_store.rs
@@ -7,7 +7,7 @@ use std::{
     task::{Context, Poll},
     time::Duration,
 };
-use tokio::time::{Instant, Interval, MissedTickBehavior};
+use tokio::time::{Interval, MissedTickBehavior};
 
 const DEFAULT_DUMP_INTERVAL: Duration = Duration::from_secs(3600); // 1 hour
 
@@ -50,10 +50,7 @@ impl Future for DumpPeerStoreService {
     fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         if self.interval.is_none() {
             self.interval = {
-                let mut interval = tokio::time::interval_at(
-                    Instant::now() + DEFAULT_DUMP_INTERVAL,
-                    DEFAULT_DUMP_INTERVAL,
-                );
+                let mut interval = tokio::time::interval(DEFAULT_DUMP_INTERVAL);
                 // The dump peer store service does not need to urgently compensate for the missed wake,
                 // just delay behavior is enough
                 interval.set_missed_tick_behavior(MissedTickBehavior::Delay);
diff --git a/test/src/net.rs b/test/src/net.rs
index b8f1375f7f..c3a6393b71 100644
--- a/test/src/net.rs
+++ b/test/src/net.rs
@@ -4,7 +4,7 @@ use ckb_app_config::NetworkConfig;
 use ckb_async_runtime::{new_global_runtime, Runtime};
 use ckb_chain_spec::consensus::Consensus;
 use ckb_channel::{self as channel, unbounded, Receiver, RecvTimeoutError, Sender};
-use ckb_logger::info;
+use ckb_logger::{debug, info};
 use ckb_network::{
     async_trait, bytes::Bytes, extract_peer_id, CKBProtocol, CKBProtocolContext,
     CKBProtocolHandler, Flags, NetworkController, NetworkService, NetworkState, PeerIndex,
@@ -217,6 +217,10 @@ impl CKBProtocolHandler for DummyProtocolHandler {
         peer_index: PeerIndex,
         _version: &str,
     ) {
+        debug!(
+            "DummyProtocolHandler connected peer_index: {:?}",
+            peer_index
+        );
         let peer = nc.get_peer(peer_index).unwrap();
         let node_id = extract_peer_id(&peer.connected_addr)
             .map(|peer_id| peer_id.to_base58())