--关于BLOG的一些问题与解决

etherchannel配置

手动配置etherchannel
S1
interface port-channel 1
exit
interface range gigabitEthernet 0/1-2
channel-group 1 mode on
switchport trunk encapsulaition dot1q
switchport mode trunk
exit

port-channel load-balance dst-ip

S2

interface port-channel 2 两边的编号可以不一样，只是本地有效而已
exit

interface range gigabitEthernet 0/1-2
channel-group 2 mode on
switchport trunk encapsulation dot1q
switchport mode trunk
exit

port-channnel load-balance dst-ip

配置pagp 和lacp

S1
interface port-channel 1
exit
interface range gigabitEthernet 0/1-2
channel-procotol pagp
channel-group 1 mode desirable
switchport trunk encapsulaiton dot1q
switchport mode trunk

interface port-channel 2
exit

interface range gigabitEthernet 0/1-2
channel-procotol pagp
channel-group 2 mode auto
switchport trunk encapsulation dot1q
switchport mode trunk

实验调试
show etherchannel summary
Switch#show etherchannel summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

Number of channel-groups in use: 1
Number of aggregators: 1

Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------------

1 Po1(SU) PAgP Gig0/1(P) Gig0/2(P)

show etherchannel prot-channel

Switch#show etherchannel port-channel
Channel-group listing:
----------------------

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

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

Age of the Port-channel = 00d:00h:20m:19s
Logical slot/port = 2/1 Number of ports = 2
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel
Protocol = PAGP
Port Security = Disabled

Ports in the Port-channel:

Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Gig0/2 Desirable-Sl 0
0 00 Gig0/1 Desirable-Sl 0
Time since last port bundled: 00d:00h:17m:41s Gig0/1

附件：

Switch(config-if-range)#channel-group 1 mode ?
active Enable LACP unconditionally
auto Enable PAgP only if a PAgP device is detected
desirable Enable PAgP unconditionally
on Enable Etherchannel only
passive Enable LACP only if a LACP device is detected

Switch(config-if-range)#channel-protocol ?
lacp Prepare interface for LACP protocol
pagp Prepare interface for PAgP protocol

本文出自 “CoCoe” 博客，请务必保留此出处http://sunchao.blog.51cto.com/957900/1074824