3com 4210 PWR 9-Port 3CR17341-91-ME User Manual

C

HAPTER

 9: P

ORT

 B

ASIC

 C

ONFIGURATION

# After you disable Ethernet 1/0/1 from outputting Up/Down log information and 
execute the shutdown command or the undo shutdown command on Ethernet 
1/0/1, no Up/Down log information is output for Ethernet 1/0/1. 

[4210-Ethernet1/0/1] undo enable log updown

[4210-Ethernet1/0/1] shutdown

[4210-Ethernet1/0/1] undo shutdown

■

Switch A and Switch B are connected to each other through two trunk port 
(Ethernet 1/0/1).

■

Configure the default VLAN ID of both Ethernet 1/0/1 to 100.

■

Allow the packets of VLAN 2, VLAN 6 through VLAN 50 and VLAN 100 to pass 
both Ethernet 1/0/1.

Figure 37   Network diagram for Ethernet port configuration

Table 69   Display and maintain basic port configuration

Display port configuration 
information 

display interface [ 
interface-type | interface-type 
interface-number ] 

You can execute the display 
commands in any view. 

Display information about SFP 
module on a specified port 

display 
transceiver-information 
interface interface-type 
interface-number

Display the enable/disable 
status of port loopback 
detection 

Display brief information 
about port configuration 

display brief interface [ 
interface-type [ 
interface-number ] ] [ | { begin 
| include | exclude } 
regular-expression ]

Display the ports that are of a 
specific type

display port { hybrid | trunk 
| combo }

Display port information 
about a specified unit 

display unit unit-id 
interface

Clear port statistics 

reset counters interface [ 
interface-type | interface-type 
interface-number ] 

You can execute the reset 
command in user view.

After 802.1x is enabled on a 
port, clearing the statistics on 
the port will not work.

Eth1/0/1

Eth1/0/1

Switch A

Switch B

Eth1/0/1

Eth1/0/1

Switch A

Switch B