From: Loganaden Velvindron <logan@cyberstorm.mu>
Date: Thu, 12 May 2022 14:04:17 +0000 (+0400)
Subject: zebra: Add startup message and display netlink buffer size.
X-Git-Tag: base_8.3~61^2
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=0c99696f302a750b211166e6f662f913c739f823;p=matthieu%2Ffrr.git

zebra: Add startup message and display netlink buffer size.

Add startup message and display netlink buffer size.

Signed-off-by: Loganaden Velvindron <logan@cyberstorm.mu>
---

diff --git a/zebra/main.c b/zebra/main.c
index 7ef30d1d49..3ae20361be 100644
--- a/zebra/main.c
+++ b/zebra/main.c
@@ -79,8 +79,9 @@ int graceful_restart;
 bool v6_rr_semantics = false;
 
 /* Receive buffer size for kernel control sockets */
+#define RCVBUFSIZE_MIN 4194304
 #ifdef HAVE_NETLINK
-uint32_t rcvbufsize = 4194304;
+uint32_t rcvbufsize = RCVBUFSIZE_MIN;
 #else
 uint32_t rcvbufsize = 128 * 1024;
 #endif
@@ -365,6 +366,10 @@ int main(int argc, char **argv)
 			break;
 		case 's':
 			rcvbufsize = atoi(optarg);
+			if (rcvbufsize < RCVBUFSIZE_MIN)
+				fprintf(stderr,
+					"Rcvbufsize is smaller than recommended value: %d\n",
+					RCVBUFSIZE_MIN);
 			break;
 #ifdef HAVE_NETLINK
 		case 'n':
diff --git a/zebra/zebra_vty.c b/zebra/zebra_vty.c
index b20d8daf38..3756f8153c 100644
--- a/zebra/zebra_vty.c
+++ b/zebra/zebra_vty.c
@@ -3914,6 +3914,7 @@ DEFUN (show_zebra,
 		       ipforward_ipv6() ? "On" : "Off");
 	ttable_add_row(table, "MPLS|%s", mpls_enabled ? "On" : "Off");
 	ttable_add_row(table, "EVPN|%s", is_evpn_enabled() ? "On" : "Off");
+	ttable_add_row(table, "Kernel socket buffer size|%d", rcvbufsize);
 
 
 #ifdef GNU_LINUX