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authorJohn Lo <loj@cisco.com>2017-11-07 17:23:49 -0500
committerFlorin Coras <florin.coras@gmail.com>2017-11-08 00:11:49 +0000
commitc97b4aca0db8d84b17ceb03a14ab44346a2b3466 (patch)
treee9852c5c8ffd85aa788abcf9296f813f02874164
parent234301f3c7f4170e78500ce112aff7951f88cf45 (diff)
Fix SHG handling for ARP/ICMPv6 received from BVI in a BD
This change makes sure ARP/ICMPv6 brodcast packets received from the BVI of a BD can be flooded to all remote VTEPs via its VXLAN tunnels irrespective of SHG setting. Similar processing was done for unicast packets already and needs to be extpanded to ARP and ICMPv6 broadcast packets. Change-Id: I26ac43ecdbc81a769f742a583a156506f7e70d49 Signed-off-by: John Lo <loj@cisco.com>
-rw-r--r--src/vnet/l2/l2_input.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vnet/l2/l2_input.c b/src/vnet/l2/l2_input.c
index e556b141..9038363c 100644
--- a/src/vnet/l2/l2_input.c
+++ b/src/vnet/l2/l2_input.c
@@ -193,6 +193,14 @@ classify_and_dispatch (l2input_main_t * msm, vlib_buffer_t * b0, u32 * next0)
if (ethertype != ETHERNET_TYPE_ARP &&
(ethertype != ETHERNET_TYPE_IP6 || protocol != IP_PROTOCOL_ICMP6))
feat_mask &= ~(L2INPUT_FEAT_ARP_TERM);
+ /*
+ * Check for from-BVI processing - set SHG of ARP/ICMP6 packets from BVI
+ * to 0 so it can also flood to VXLAN tunnels or other ports with the
+ * same SHG as that of the BVI.
+ */
+ else if (PREDICT_FALSE (vnet_buffer (b0)->sw_if_index[VLIB_TX] ==
+ L2INPUT_BVI))
+ vnet_buffer (b0)->l2.shg = 0;
}
else
{