3Com 3800 - Manual (Page 66)

4-12 C HAPTER 4: C OMMANDS
Port Commands Table 4-10 describes port commands.
create fdbentry vlan
Allows you to create a permanent FDB entry. Specify
the following:
■
mac_address — Device MAC address, using colon
separated bytes.
■
name — VLAN associated with MAC address.
■
portlist — Port number associated with MAC
address.
If more than one port number is associated with a
permanent MAC entry, packets will be multicast to the
multiple destinations.
delete fdbentry vlan Allows you to delete a permanent FDB entry.
config fdb agingtime Allows you to configure the FDB ageing time. The
range is 15 through 1,000,000 seconds. The default
value is 1800 seconds. A value of 0 indicates that the
entry should never be aged out.
Table 4-9 FDB Commands (continued)
Command Description
Table 4-10 Port Commands
Command Description
show port config Displays state, link status, speed, and autonegotiation
setting for each port.
show port stats Displays port information including physical layer
configuration 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 more
ports.
show port util Displays port utilization by percentage, bytes per
second, or packets per second. Use the space bar to
toggle between percentage, bytes per second, or
packets per second. Use the clear counters command to
reset values.
config port auto on Allows you to enable autonegotiation on a 10/100
Mbps or Gigabit port.
(continued)
SW3800.BK Page 12 Tuesday, May 5, 1998 5:20 PM