From 8f7eac56c97a3569841d76e682177964ec485f75 Mon Sep 17 00:00:00 2001
From: devopsbo3 <69951731+devopsbo3@users.noreply.github.com>
Date: Fri, 10 Nov 2023 12:27:53 -0600
Subject: [PATCH] Revert "les: remove unused var `AdvertiseProtocolVersions`
 (#27405)"

This reverts commit abd1ff83d0cd79e3adbdec9087ac4393f974d74f.
---
 les/protocol.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/les/protocol.go b/les/protocol.go
index cfebdbfb9a..dced7039e4 100644
--- a/les/protocol.go
+++ b/les/protocol.go
@@ -40,8 +40,9 @@ const (
 
 // Supported versions of the les protocol (first is primary)
 var (
-	ClientProtocolVersions = []uint{lpv2, lpv3, lpv4}
-	ServerProtocolVersions = []uint{lpv2, lpv3, lpv4}
+	ClientProtocolVersions    = []uint{lpv2, lpv3, lpv4}
+	ServerProtocolVersions    = []uint{lpv2, lpv3, lpv4}
+	AdvertiseProtocolVersions = []uint{lpv2} // clients are searching for the first advertised protocol in the list
 )
 
 // ProtocolLengths is the number of implemented message corresponding to different protocol versions.