3Com 10014299 manual Bridge Overview

						Bridge Overview 291
Figure 102 Bridge learns that Workstation A is connected with Port 1
00e0.fcaa.aaaa						00e0.fcbb.bbbb
	Workstation A						Workstation B
		Source addressDestination address
		00e0.fcaa.aaaa00e0.fcbb.bbb			b
		Bridging table				Bridge port 1	Ethernet segment 1
		MAC address	Port
00e0.fccc.cccc		00e0.fcaa.aaaa	1			00e0.fcdd.dddd
				Bridge
	Workstation C					Bridge port 2	Workstation D
							Ethernet segment 2

Once Workstation B responds to Workstation A, the bridge can detect the responding Ethernet frame from Workstation B and learn that Workstation B is also connected to Bridge port 1 because the frame is detected on port 1 too. As a result, the correlation between the MAC address of Workstation B and Bridge port

1 is added to the bridging table too, as shown in the following figure:

Figure 103 Bridge learns that Workstation B is connected with the port 1 too.

00e0.fcaa.aaaa 00e0.fcbb.bbbb

Workstation A

Workstation B

Source address Destination address 00e0.fcbb.bbbb00e0.fcaa.aaaa

	Bridging table
	MAC address	Port
00e0.fccc.cccc	00e0.fcaa.aaaa	1

Bridge port 1

Ethernet segment 1

00e0.fcbb.bbbb 1

Workstation C

00e0.fcdd.dddd

Bridge

Workstation D

Bridge port 2

Ethernet segment 2

At last, given that all the workstations are in use, the bridge will obtain all correlation between the MAC addresses and the bridge ports as shown in the following figure: