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4-12 CHAPTER 4: COMMANDSPort Commands Table 4-10 describes port commands.create fdbentry vlan Allows you to create a permanent FDB entry. Specifythe following:n mac_address — Device MAC address, using colonseparated bytes.n name — VLAN associated with MAC address.n portlist — Port number associated with MACaddress.If more than one port number is associated with apermanent MAC entry, packets will be multicast to themultiple destinations.delete fdbentry vlan Allows you to delete a permanent FDB entry.config fdb agingtime Allows you to configure the FDB ageing time. Therange is 15 through 1,000,000 seconds. The defaultvalue is 1800 seconds. A value of 0 indicates that theentry should never be aged out.Table 4-9 FDB Commands (continued)Command DescriptionTable 4-10 Port CommandsCommand Descriptionshow port config Displays state, link status, speed, and autonegotiationsetting for each port.show port stats Displays port information including physical layerconfiguration and statistics.show port errors Displays error information for one or more ports.show port collisions Displays real-time collision statistics.show port packet Displays a histogram of packet statistics for one or moreports.show port util Displays port utilization by percentage, bytes persecond, or packets per second. Use the space bar totoggle between percentage, bytes per second, orpackets per second. Use the clear counters command toreset values.config port auto on Allows you to enable autonegotiation on a 10/100Mbps or Gigabit port.(continued)
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