H3C Technologies H3C MSR 50 - Manual (Page 309)

288
Figure 297 Forwarding
• When Host A sends an Ethernet frame to Host B, as Host B is on the same LAN segment with Host
A, the bridge filters the Ethernet frame instead of forwarding it, as shown in
Figure 298 .
Figure 298 Filtering
• When Host A sends an Ethernet frame to Host C, if the bridge does not find a MAC-to-interface
mapping about Host C in its bridge table, the bridge forwards the Ethernet frame to all interfaces
except the interface on which the frame was received, as shown in Figure 299 .
Host A Host B
Host C Host D
LAN segment 2
LAN segment 1
Bridge
Bridge interface 1
Source address Destination address
00e0.fcbb.bbbb 1
00e0.fccc.cccc 2
00e0.fcaa.aaaa 1
00e0.fcdd.dddd 2
MAC address Interface
Bridge table
00e0.fcaa.aaaa 00e0. fccc. cccc
00e0.fcaa.aaaa 00e0.fccc.cccc
MAC address: 00e0.fccc .cccc
MAC address: 00e0. fcaa.aaaa MAC address: 00e0.fcbb.bbbb
MAC address: 00e 0.fcdd.dddd
Source address Destination address
Bridge interface 2