MES-2110 User’s Guide
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H A P T E R
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MAC
20.1 Overview
The MAC Table screen (a MAC table is also known as a filtering database) shows
how frames are forwarded or filtered across the MES-2110’s ports. It shows what
device MAC address, belonging to what VLAN group (if any) is forwarded to which
port(s) and whether the MAC address is dynamic (learned by the MES-2110) or
static (manually entered in the Static MAC Forwarding screen).
The MES-2110 uses the MAC table to determine how to forward frames. See the
following figure.
1
The MES-2110 examines a received frame and learns the port on which this
source MAC address came.
2
The MES-2110 checks to see if the frame's destination MAC address matches a
source MAC address already learned in the MAC table.
• If the MES-2110 has already learned the port for this MAC address, then it
forwards the frame to that port.
• If the MES-2110 has not already learned the port for this MAC address, then the
frame is flooded to all ports. Too much port flooding leads to network
congestion.
Summary of Contents for ES-100
Page 2: ......
Page 8: ...Safety Warnings MES 2110 User s Guide 8 ...
Page 10: ...Contents Overview MES 2110 User s Guide 10 ...
Page 17: ...Table of Contents MES 2110 User s Guide 17 Index 229 ...
Page 18: ...Table of Contents MES 2110 User s Guide 18 ...
Page 50: ...Chapter 4 Tutorials MES 2110 User s Guide 50 ...
Page 74: ...Chapter 8 Loop Detection MES 2110 User s Guide 74 ...
Page 76: ...Chapter 9 Jumbo Frame MES 2110 User s Guide 76 ...
Page 88: ...Chapter 10 802 1x MES 2110 User s Guide 88 ...
Page 136: ...Chapter 17 IGMP MES 2110 User s Guide 136 ...
Page 140: ...Chapter 18 DHCP Relay Configuration MES 2110 User s Guide 140 ...
Page 150: ...Chapter 19 IP Source Guard MES 2110 User s Guide 150 ...
Page 206: ...Chapter 23 Command Line Interface MES 2110 User s Guide 206 ...
Page 214: ...Chapter 24 Troubleshooting MES 2110 User s Guide 214 ...
Page 220: ...Appendix A Changing a Fuse MES 2110 User s Guide 220 ...
Page 228: ...Appendix C Legal Information MES 2110 User s Guide 228 ...