linux下多網(wǎng)卡綁定.docx

linux下多網(wǎng)卡綁定假定將eth0,eth1,eth2,eth3綁定成bond0,步驟如下：（1）#vi /etc/modprobe.conf,添加如下2行： alias bond0 bonding options bonding miimon=100 mode=4當(dāng)mode0時(shí)，交換機(jī)相應(yīng)端口不需要做trunk，但是從節(jié)點(diǎn)上ping網(wǎng)關(guān)（192.*.*.*）有較大的延時(shí)。解決此問(wèn)題的辦法是把mode改成4，同時(shí)配置交換機(jī)相應(yīng)端口開(kāi)啟鏈路聚合并捆綁為trunk。在modprobe.conf文件中，miimon參數(shù)用來(lái)監(jiān)測(cè)網(wǎng)卡物理連接，建議至少設(shè)為100mode參數(shù)用來(lái)設(shè)置綁定模式0負(fù)載均衡(round robin策略)1 active/backup模式，同一時(shí)間只有一塊網(wǎng)卡使用。2負(fù)載均衡（xor算法）3廣播模式4 802.3ad模式，lagp協(xié)議，帶寬翻倍。模式不能寫錯(cuò)這里很容易出現(xiàn)不穩(wěn)定的情況，多半是這里模式選擇錯(cuò)了，所以在實(shí)施的時(shí)候需要小心，把模式確定了，然后在動(dòng)手。（2）修改/etc/sysconfig/network-scripts/目錄下的ifcfg-bond0, ifcfg-eth0, ifcfg-eth1,ifcfg-eth2,ifcfg-eth3. 具體內(nèi)容如下：rootio102 network-scripts# pwd/etc/sysconfig/network-scriptsrootio102 network-scripts# cat ifcfg-bond0DEVICE=bond0BOOTPROTE=staticONBOOT=yesIPADDR=192.*.*.*NETMASK=255.255.255.0USERTCL=noGATEWAY=192.*.*.*rootio102 network-scripts# cat ifcfg-eth0DEVICE=eth0BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yesrootio102 network-scripts# cat ifcfg-eth1DEVICE=eth1BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yesrootio102 network-scripts# cat ifcfg-eth2DEVICE=eth2BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yesrootio102 network-scripts# cat ifcfg-eth3DEVICE=eth3BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yes（3）查看bond0的狀態(tài)rootio102 # more /proc/net/bonding/bond0Ethernet Channel Bonding Driver: v2.6.3-rh (June 8, 2005)Bonding Mode: IEEE 802.3ad Dynamic link aggregationMII Status: upMII Polling Interval (ms): 100Up Delay (ms): 0Down Delay (ms): 0802.3ad infoLACP rate: slowActive Aggregator Info: Aggregator ID: 1 Number of ports: 4 Actor Key: 17 Partner Key: 480 Partner Mac Address: 00:12:f2:cd:68:00Slave Interface: eth0MII Status: upLink Failure Count: 0Permanent HW addr: 00:1e:0b:73:56:26Aggregator ID: 1Slave Interface: eth1MII Status: upLink Failure Count: 0Permanent HW addr: 00:1e:0b:73:56:a2Aggregator ID: 1Slave Interface: eth2MII Status: upLink Failure Count: 0Permanent HW addr: 00:1e:0b:d5:34:d2Aggregator ID: 1Slave Interface: eth3MII Status: upLink Failure Count: 0Permanent HW addr: 00:1e:0b:d5:34:d0Aggregator ID: 1然后在交換機(jī)（這里的交換機(jī)是Foundry）端做TRUNK將同一臺(tái)服務(wù)器的多個(gè)網(wǎng)卡捆綁成一條邏輯的線路來(lái)使用，提高服務(wù)器與交換機(jī)之間的帶寬，并且能夠負(fù)載均衡多個(gè)網(wǎng)卡上的流量，以及多個(gè)網(wǎng)卡之間的冗余當(dāng)其中一個(gè)網(wǎng)卡壞了其它的網(wǎng)卡會(huì)平分壞網(wǎng)卡上的流量 ，并不影響服務(wù)器與交換機(jī)之間的數(shù)據(jù)轉(zhuǎn)發(fā)。注 如果交換機(jī)配置為trunk 那么服務(wù)器段也要做相應(yīng)的配置 trunk 才能被正確的使用BR-telnetYJY_SX_1600#show trunkConfigured trunks:Trunk ID: 897Hw Trunk ID: 6Ports_Configured: 4Primary Port Monitored: JointlyPorts 15/1 15/2 15/3 15/4 Port Names none none none none Port_Status enableenableenableenableMonitor off off off off Rx Mirr PortN/A N/A N/A N/A Tx Mirr PortN/A N/A N/A N/A Monitor Dir N/A N/A N/A N/A Trunk ID: 901Hw Trunk ID: 11Ports_Configured: 4Primary Port Monitored: JointlyPorts 15/5 15/6 15/7 15/8 Port Names none none none none Port_Status enableenableenableenable Monitor off off off off Rx Mirr PortN/A N/A N/A N/A Tx Mirr PortN/A N/A N/A N/A Monitor Dir N/A N/A N/A N/A 查看如上的紅色標(biāo)注信息 端口狀態(tài)是enable 本組trunk 包括 15/5 15/6 15/7 15/8 這4個(gè)端口本組trunk 已經(jīng)生效然后在交換機(jī)（這里的交換機(jī)是Foundry）端做TRUNK將同一臺(tái)服務(wù)器的多個(gè)網(wǎng)卡捆綁成一條邏輯的線路來(lái)使用，提高服務(wù)器與交換機(jī)之間的帶寬，并且能夠負(fù)載均衡多個(gè)網(wǎng)卡上的流量，以及多個(gè)網(wǎng)卡之間的冗余當(dāng)其中一個(gè)網(wǎng)卡壞了其它的網(wǎng)卡會(huì)平分壞網(wǎng)卡上的流量，并不影響服務(wù)器與交換機(jī)之間的數(shù)據(jù)轉(zhuǎn)發(fā)。注 如果交換機(jī)配置為trunk 那么服務(wù)器段也要做相應(yīng)的配置 trunk 才能被正確的使用BR-telnetYJY_SX_1600#show trunkConfigured trunks:Trunk ID: 897Hw Trunk ID: 6Ports_Configured: 4Primary Port Monitored: JointlyPorts 15/1 15/2 15/3 15/4 Port Names none none none none Port_Status enableenableenableenableMonitor off off off off Rx Mirr PortN/A N/A N/A N/A Tx Mirr PortN/A N/A N/A N/A Monitor Dir N/A N/A N/A N/A Trunk ID: 901Hw Trunk ID: 11Ports_Configured: 4Primary Port Monitored: JointlyPorts 15/5 15/6 15/7 15/8 Port Names none none none none Port_Status enableenableenableenable Monitor off off off off Rx Mirr PortN/A N/A N/A N/A Tx Mirr PortN/A N/A N/A N/A Monitor Dir N/A N/A N/A N/A 查看如上的紅色標(biāo)注信息 端口狀態(tài)是enable 本組trunk 包