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Cisco交换机上的链路聚合

发布时间:2020-12-14 05:54:51 所属栏目:百科 来源:网络整理
导读:cisco 交换机上的链路聚合 一、 2 层 ethernet channel ( interface)#channel-group number mode {on | auto [no-silent]|desirable [no-silent]} on 使用 EthernetChannel 但不发送 pagp 分组 off 禁用 EthernetChannel desirable? 交换机主动要求形成一个
cisco 交换机上的链路聚合

  一、2 ethernet channel

  (interface)#channel-group number mode {on | auto [no-silent]|desirable [no-silent]}

  on 使用EthernetChannel 但不发送pagp分组

  off 禁用EthernetChannel

  desirable? 交换机主动要求形成一个EthernetChannel 发送pagp分组

  auto????????? 交换机被动形成一个EthernetChannel 不发送pagp分组 默认取值

  往往可能EthernetChannel的一端(一台服务器或者是网络分析仪)#没有产生pagp分组或者说是保持

  沉默",可以使用关键字silent15秒的延迟之后,让对端成为EthernetChannel.起对端为沉默

  使用nonsilent关键字则要求在激活EthernetChannel之前现进行pagp协商、

  Catalyst 2900? 3500xl 平台上没有pagp 只有 on off不进行协商

  ios? global)# port-channel load-balance? method

  ――源地址??? src-ip

  ――目的地址 dstip

  ――源和目的? srcdstip

  ――mac地址 srcmac

  ――目的mac地址 dstmac

  ――源和目的mac srcdstmac

  ――源端口号 srcport

  ――目的端口号 dst-port

  ――源和目的端口号 src-dst-port

  example

(global)# interface fastethernet 4/1
(interface)#channel-group 100 mode desirable non-silent
(global)# interface fastethernet 4/2
(interface)#channel-group 100 mode desirable non-silent
(global)# interface fastethernet 5/1
(interface)#channel-group 100 mode desirable non-silent
(global)# interface fastethernet 5/2
(interface)#channel-group 100 mode desirable non-silent
(global)#port-channel load-balance src-dst-ip
show etherchannel [channel-group] load-balance

  绑定到一起的端口必须具有相同的属性如:速度双工模式 vlan 干路模式 允许的vlan范围

  3 etherchannel

  1创建逻辑端口通道

  interface portchannel number

  2.配置端口通道上的协议信息

  ip address address netmask

  3.把物理3层接口分配给通道

  interface type mod/port

  选择的端口必须是一个3层接口?? no switchport

  4.删除任何协议地址

  no ip address

  5.把接口分配给通道组

  channel-group number mode {auto |dusirable |on}

  6.核实接口已经启用

  no shutdown

  7核实通道

  show ethernetchannel number port-channel

  show interface type number etherchannel

  show ethernetchannel summary

  example

  分布层交换机上

(config)#interface channel-group 1
(config-if)#ip address 192.168.1.1 255.255.255.0
(config-if)#interface gigabitethernet 1/1
(config-if)#no switchport
(config-if)#no ip address
(config-if)#channel-group 1 mod on
(config-if)#no shutdown
(config-)#interface gigabitethernet 1/2
(config-if)#no switchport
(config-if)#no ip address
(config-if)#channel-group 1 mode on
(config-if)#end
copy run start

  接入层交换机(3500xl)#

(config)#interface gigabitethernet 0/1
(config-if)#port group 1
(config)#interface gigabitethernet 0/2
(config-if)#port group 1
(config)#end
#copy run start

  我的试验3750配置实例? CastLyst 3750G

Switch#config t
Switch(config)#int gigabitEthernet 1/0/23
Switch(config-if)#channel-group 10 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)#channel-group 10 mode desirable non-silent
Switch(config)#int gigabitEthernet 1/0/24
Switch(config-if)#channel-group 10 mode desirable non-silent
Switch(config)#port-channel ?
load-balance Load Balancing method
Switch(config)#port-channel load-balance ?
dst-ip Dst IP Addr
dst-mac Dst Mac Addr
src-dst-ip Src XOR Dst IP Addr
src-dst-mac Src XOR Dst Mac Addr
src-ip Src IP Addr
src-mac Src Mac Addr
Switch(config)#port-channel load-balance src-dst-ip
Switch#write
Switch#show interfaces gigabitEthernet 1/0/23 etherchannel
Port state = Up Sngl-port-Bndl Mstr Not-in-Bndl
Channel group = 10 Mode = Desirable-NonSl Gcchange = 0
Port-channel = null GC = 0x 000A 0001 Pseudo port-channel = Po10
Port index = 0 Load = 0x00 Protocol = PAgP
Flags: S - Device is sending Slow hello. C - Device is in Consistent state.
A - Device is in Auto mode. P - Device learns on physical port.
d - PAgP is down.
Timers: H - Hello timer is running. Q - Quit timer is running.
S - Switching timer is running. I - Interface timer is running.
Local information:
Hello Partner PAgP Learning Group
Port Flags State Timers Interval Count Priority Method Ifindex
Gi1/0/23 U4/S4 H 30s 0 128 Any 10123
Age of the port in the current state: 00d:00h: 03m :30sSwitch#show etherchannel summaryFlags: D - down P - in port-channelI - stand-alone s - suspendedH - Hot-standby (LACP only)#R - Layer3 S - Layer2U - in use f - failed to allocate aggregatoru - unsuitable for bundlingw - waiting to be aggregatedd - default portNumber of channel-groups in use: 1Number of aggregators: 1Group Port-channel Protocol Ports

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