H3C S5560X-EI Series Configuration Guide

5
Figure 4 Inter-site unicast
Flood
The VTEP floods a broadcast, multicast, or unknown unicast frame to all site-facing interfaces and
VXLAN tunnels in the VXLAN, except for the incoming interface.
VXLAN supports the unicast mode for flood traffic. The mode is also called head-end replication. The
source VTEP replicates the flood frame, and then sends one replica to the destination IP address of
each VXLAN tunnel in the VXLAN. See Figure 5.
Each de
stination VTEP floods the inner Ethernet frame to all the site-facing interfaces in the VXLAN.
To avoid loops, the destination VTEPs do not flood the frame to VXLAN tunnels.
Figure 5 Unicast mode
VTEP 1 VTEP 2
Transport network
P
Terminal 1
Terminal 2
Terminal 3
Terminal 7
Terminal 8
Terminal 9
Terminal 4
Terminal 5
Terminal 6
V
X
L
A
N
t
u
n
n
e
l
V
X
L
A
N
t
u
n
n
e
l
VTEP 3
VXLAN tunnel
Terminal 10
Terminal 11
Terminal 12
Replicate and
encapsulate

H3C S5560X-EI Series Specifications

General

Brand	H3C
Model	S5560X-EI Series
Category	Switch
Language	English