From fd8232817f27304c4b2a13f3f3588a60af80b4dc Mon Sep 17 00:00:00 2001
From: sandeep-kulambi <50737942+sandeep-kulambi@users.noreply.github.com>
Date: Sat, 9 Nov 2019 12:40:12 +0530
Subject: [PATCH] [lldp]: ensure the LLDP PDU is sent immediately when the
 tx-interval is modified. (#3705)

When LLDP parameter tx-interval value is modified, there was no immediate PDU sent to peer to update the peer with the latest values. Due to this the update on peer happened only after the next PDU is sent which can cause a delay of upto 30 secs (default value).
---
 .../0003-update-tx-interval-immediately.patch | 20 +++++++++++++++++++
 src/lldpd/patch/series                        |  1 +
 2 files changed, 21 insertions(+)
 create mode 100644 src/lldpd/patch/0003-update-tx-interval-immediately.patch

diff --git a/src/lldpd/patch/0003-update-tx-interval-immediately.patch b/src/lldpd/patch/0003-update-tx-interval-immediately.patch
new file mode 100644
index 0000000000..b6b2950012
--- /dev/null
+++ b/src/lldpd/patch/0003-update-tx-interval-immediately.patch
@@ -0,0 +1,20 @@
+diff --git a/src/daemon/client.c b/src/daemon/client.c
+index 8382d02..38cf3f3 100644
+--- a/src/daemon/client.c
++++ b/src/daemon/client.c
+@@ -71,7 +71,6 @@ client_handle_set_configuration(struct lldpd *cfg, enum hmsg_type *type,
+ 	if (CHANGED(c_tx_interval) && config->c_tx_interval != 0) {
+ 		if (config->c_tx_interval < 0) {
+ 			log_debug("rpc", "client asked for immediate retransmission");
+-			levent_send_now(cfg);
+ 		} else {
+ 			log_debug("rpc", "client change transmit interval to %d",
+ 			    config->c_tx_interval);
+@@ -79,6 +78,7 @@ client_handle_set_configuration(struct lldpd *cfg, enum hmsg_type *type,
+ 			LOCAL_CHASSIS(cfg)->c_ttl = cfg->g_config.c_tx_interval *
+ 			    cfg->g_config.c_tx_hold;
+ 		}
++		levent_send_now(cfg);
+ 	}
+ 	if (CHANGED(c_tx_hold) && config->c_tx_hold > 0) {
+ 		log_debug("rpc", "client change transmit hold to %d",
diff --git a/src/lldpd/patch/series b/src/lldpd/patch/series
index 2ca46b5753..5e5e8bc997 100644
--- a/src/lldpd/patch/series
+++ b/src/lldpd/patch/series
@@ -1,3 +1,4 @@
 # This series applies on GIT commit 396961a038a38675d46f96eaa7b430b2a1f8701b
 0001-return-error-when-port-does-not-exist.patch
 0002-Let-linux-kernel-to-find-appropriate-nl_pid-automa.patch
+0003-update-tx-interval-immediately.patch