From f8d9cc53659d29a0c047f3718b02efaf6d1cce3b Mon Sep 17 00:00:00 2001
From: Ethan Jackson <ethan@nicira.com>
Date: Wed, 13 Jul 2011 11:50:10 -0700
Subject: [PATCH] bond: Drop packets on backup slaves.
Currently, OVS accepts incoming traffic on all slaves participating
in a bond. In Linux active-backup bonding, all traffic which comes
in on backup slaves is dropped. This patch causes OVS to do the
same.
Bug #6125.
---
vswitchd/bridge.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c
index d44f4803b..928d03ce3 100644
--- a/vswitchd/bridge.c
+++ b/vswitchd/bridge.c
@@ -3016,6 +3016,21 @@ is_admissible(struct bridge *br, const struct flow *flow, bool have_packet,
}
}
+ /* Drop all packets which arrive on backup slaves. This is similar to how
+ * Linux bonding handles active-backup bonds. */
+ if (in_port->bond_mode == BM_AB) {
+
+ *tags |= in_port->active_iface;
+ if (in_port->active_iface != in_iface->port_ifidx) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+
+ VLOG_WARN_RL(&rl, "active-backup bond received packet on backup"
+ " interface (%s) destined for " ETH_ADDR_FMT,
+ in_iface->name, ETH_ADDR_ARGS(flow->dl_dst));
+ return false ;
+ }
+ }
+
return true;
}
--
2.47.0