Cisco Switch EtherChannel

兩個Cisco 2950 Switch , 第一台與第二台的Port 1 與 Port 2 對連，設定EtherChannel

第一台Switch
up#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
up(config)#interface range fastEthernet 0/1 - 2
up(config-if-range)#no ip address
up(config-if-range)#channel-group 1 mode desirable
Creating a port-channel interface Port-channel 1

第二台Switch

down#configure terminal

Enter configuration commands, one per line.  End with CNTL/Z.

down(config)#interface range fastEthernet 0/1 - 2

down(config-if-range)#no ip address

down(config-if-range)#channel-group 1 mode desirable

Creating a port-channel interface Port-channel 1

down(config-if-range)#

00:34:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down

00:34:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down

00:34:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

00:34:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up

00:34:34: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up

00:34:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to upchannel-group 1 mode desirable

查看Etherchannel
up#show etherchannel port-channel
                Channel-group listing:
                ----------------------

Group: 1
----------
                Port-channels in the group:
                ---------------------------

Port-channel: Po1
------------

Age of the Port-channel   = 0d:00h:26m:38s
Logical slot/port   = 1/0          Number of ports = 2
GC                  = 0x00010001      HotStandBy port = null
Port state          = Port-channel Ag-Inuse
Protocol            =   PAgP

Ports in the Port-channel:

Index   Load   Port     EC state        No of bits
------+------+------+------------------+-----------
  0     00     Fa0/1    Desirable-Sl       0
  0     00     Fa0/2    Desirable-Sl       0

Time since last port bundled:    0d:00h:24m:35s    Fa0/2