3com 3800 ユーザーズマニュアル

C

HAPTER

 4: C

OMMANDS

create fdbentry <mac_address> vlan <name> 
<portlist>

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 <mac_address> vlan <name>

Allows you to delete a permanent FDB entry.

config fdb agingtime <number>

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)

Table 4-10   Port Commands

show port <portlist> config

Displays state, link status, speed, and autonegotiation 
setting for each port.

show port <portlist> stats

Displays port information including physical layer 
configuration and statistics.

show port <portlist> errors

Displays error information for one or more ports.

show port <portlist> collisions

Displays real-time collision statistics.

show port <portlist> packet 

Displays a histogram of packet statistics for one or more 
ports.

show port <portlist> 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 <portlist> 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