263
Figure 282 Host A sends an Ethernet frame to Host B on LAN 1
As the bridge receives the Ethernet frame on bridging interface 1, it determines that Host A is
attached to bridging interface 1 and creates a mapping between the MAC address of Host A and
bridging interface 1 in its bridge table, as shown in Figure 283.
Figure 283
The bridge d
etermines that Host A is attached to interface 1
When Host B responds to Host B, the bridge also hears the Ethernet frame from Host B. As the
frame is received on bridging interface 1, the bridge determines that Host B is also attached to
bridging interface 1, and creates a mapping between the MAC address of Host B and bridging
interface 1 in its bridge table, as shown in Figure 284.
Bridge interface 2
MAC address: 00e0.fcaa.aaaa
MAC address: 00e0.fccc.cccc
MAC address: 00e0.fcdd.dddd
MAC address: 00e0.fcbb. bbbb
Host A
Host B
Host C Host D
LAN segment 2
LAN segment 1
Bridge
Bridge interface 1
00e0.fcaa.aaaa 00e0. fcbb.bbbb
Source address Destination address
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