diff --git a/Makefile b/Makefile
index 255b7d929..1bafc7250 100644
--- a/Makefile
+++ b/Makefile
@@ -129,6 +129,9 @@ testnet0 testnet1: | build deps
 schlesi: | build deps
 	LOG_LEVEL="DEBUG" $(ENV_SCRIPT) nim $(NIM_PARAMS) scripts/connect_to_testnet.nims $(SCRIPT_PARAMS) shared/schlesi
 
+schlesi-dev: | build deps
+	LOG_LEVEL="DEBUG;TRACE:discv5,networking;REQUIRED:none" $(ENV_SCRIPT) nim $(NIM_PARAMS) scripts/connect_to_testnet.nims $(SCRIPT_PARAMS) shared/schlesi
+
 clean: | clean-common
 	rm -rf build/{$(TOOLS_CSV),all_tests,*_node,*ssz*,beacon_node_testnet*,state_sim,transition*}
 ifneq ($(USE_LIBBACKTRACE), 0)
diff --git a/beacon_chain/beacon_node.nim b/beacon_chain/beacon_node.nim
index 2f7b2ea3f..b7293ca1d 100644
--- a/beacon_chain/beacon_node.nim
+++ b/beacon_chain/beacon_node.nim
@@ -7,11 +7,12 @@
 
 import
   # Standard library
-  os, tables, random, strutils, times,
+  os, tables, random, strutils, times, sequtils,
 
   # Nimble packages
   stew/[objects, bitseqs, byteutils], stew/shims/macros,
-  chronos, chronicles, confutils, metrics, json_rpc/[rpcserver, jsonmarshal],
+  chronos, confutils, metrics, json_rpc/[rpcserver, jsonmarshal],
+  chronicles, chronicles/helpers as chroniclesHelpers,
   json_serialization/std/[options, sets, net], serialization/errors,
   eth/db/kvstore, eth/db/kvstore_sqlite3,
   eth/p2p/enode, eth/[keys, async_utils], eth/p2p/discoveryv5/[protocol, enr],
@@ -1334,8 +1335,20 @@ programMain:
 
   randomize()
 
-  if config.logLevel != LogLevel.NONE:
-    setLogLevel(config.logLevel)
+  try:
+    let directives = config.logLevel.split(";")
+    try:
+      setLogLevel(parseEnum[LogLevel](directives[0]))
+    except CatchableError:
+      raise (ref ValueError)(msg: "Please specify one of TRACE, DEBUG, INFO, NOTICE, WARN, ERROR or FATAL")
+
+    if directives.len > 1:
+      for topicName, settings in parseTopicDirectives(directives[1..^1]):
+        if not setTopicState(topicName, settings.state, settings.logLevel):
+          warn "Unrecognized logging topic", topic = topicName
+  except CatchableError as err:
+    stderr.write "Invalid value for --log-level. " & err.msg
+    quit 1
 
   ## Ctrl+C handling
   proc controlCHandler() {.noconv.} =
diff --git a/beacon_chain/conf.nim b/beacon_chain/conf.nim
index 7d6c6214e..5f2b88f5e 100644
--- a/beacon_chain/conf.nim
+++ b/beacon_chain/conf.nim
@@ -32,9 +32,9 @@ type
 
   BeaconNodeConf* = object
     logLevel* {.
-      defaultValue: LogLevel.DEBUG
+      defaultValue: "DEBUG"
       desc: "Sets the log level."
-      name: "log-level" }: LogLevel
+      name: "log-level" }: string
 
     eth1Network* {.
       defaultValue: goerli
diff --git a/beacon_chain/eth2_network.nim b/beacon_chain/eth2_network.nim
index 468ad1c08..6b9c5207d 100644
--- a/beacon_chain/eth2_network.nim
+++ b/beacon_chain/eth2_network.nim
@@ -684,6 +684,11 @@ proc dialPeer*(node: Eth2Node, peerInfo: PeerInfo) {.async.} =
   var peer = node.getPeer(peerInfo)
   peer.wasDialed = true
 
+  #let msDial = newMultistream()
+  #let conn = node.switch.connections.getOrDefault(peerInfo.id)
+  #let ls = await msDial.list(conn)
+  #debug "Supported protocols", ls
+
   debug "Initializing connection"
   await initializeConnection(peer)
 
diff --git a/scripts/connect_to_testnet.nims b/scripts/connect_to_testnet.nims
index a01e2eb39..1f051d369 100644
--- a/scripts/connect_to_testnet.nims
+++ b/scripts/connect_to_testnet.nims
@@ -107,7 +107,7 @@ cli do (skipGoerliKey {.
       rmDir dataDir
 
   cd rootDir
-  exec &"""nim c {nimFlags} -d:"const_preset={preset}" -o:"{beaconNodeBinary}" beacon_chain/beacon_node.nim"""
+  exec &"""nim c {nimFlags} -d:"const_preset={preset}" -d:"chronicles_sinks=textlines,json[file(json-log.txt)],textblocks[file(text-log.txt)]" -o:"{beaconNodeBinary}" beacon_chain/beacon_node.nim"""
 
   mkDir dumpDir
 
@@ -142,7 +142,7 @@ cli do (skipGoerliKey {.
   let logLevel = getEnv("LOG_LEVEL")
   var logLevelOpt = ""
   if logLevel.len > 0:
-    logLevelOpt = "--log-level=" & logLevel
+    logLevelOpt = &"""--log-level="{logLevel}" """
 
   mode = Verbose
   execIgnoringExitCode replace(&"""{beaconNodeBinary}
diff --git a/vendor/nim-chronicles b/vendor/nim-chronicles
index 9c41783ba..8be157d01 160000
--- a/vendor/nim-chronicles
+++ b/vendor/nim-chronicles
@@ -1 +1 @@
-Subproject commit 9c41783ba5b16e65f25b09d0e3dadae26dc56707
+Subproject commit 8be157d013be6cafe1ea4afcd5d4192c86fa0a3c