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實(shí)驗(yàn)條件:兩塊網(wǎng)卡,可不限型號,一臺交換機(jī),gentoo環(huán)境,可以是其他linux,注意區(qū)分不同之處.\r\n我的設(shè)備:兩個(gè)8139,TP-LINK交換機(jī),總值不過是百塊,大家不要見笑,其實(shí)在gentoo的網(wǎng)絡(luò)配置文件里提到過這種技術(shù),剛好有臺交換機(jī),并參考網(wǎng)上一篇文章,試試如何.\r\n將多塊網(wǎng)卡虛擬成為一塊網(wǎng)卡,使其具有相同的IP地址,來實(shí)現(xiàn)提升主機(jī)的網(wǎng)絡(luò)吞吐量或者是提高可用性,這種技術(shù)被稱作bonding。這項(xiàng)技術(shù)其實(shí)在 sun和cisco中已經(jīng)存在,分別稱為Trunking和etherchannel技術(shù),在Linux中,這種技術(shù)稱為bonding。\r\n\r\n通過軟硬件設(shè)置將兩塊或者多塊網(wǎng)卡綁定在同一個(gè)IP地址上,接上集線器,使用起來就好象在使用一塊網(wǎng)卡。\r\n\r\n多網(wǎng)卡綁定的優(yōu)點(diǎn)不少,首先,可以增大帶寬,假如一個(gè)網(wǎng)卡的帶寬是100M,理論上兩塊網(wǎng)卡就是200M,三塊就是300M,當(dāng)然實(shí)際上的效果是不會是這樣簡單的增加的,不過經(jīng)實(shí)際測試使用多個(gè)網(wǎng)卡對于增加帶寬,保持帶寬的穩(wěn)定性肯定是有裨益的。\r\n\r\n形成網(wǎng)卡冗余陣列、分擔(dān)負(fù)載,雙網(wǎng)卡被綁定成“一塊網(wǎng)卡”之后,同步一起工作,對服務(wù)器的訪問流量被均衡分擔(dān)到兩塊網(wǎng)卡上,這樣每塊網(wǎng)卡的負(fù)載壓力就小多了,抗并發(fā)訪問的能力提高,保證了服務(wù)器訪問的穩(wěn)定和暢快,當(dāng)其中一塊發(fā)生故障的時(shí)候,另一塊立刻接管全部負(fù)載,過程是無縫的,服務(wù)不會中斷,直到維修人員到來。\r\n\r\n1)連接設(shè)備:\r\nadsl接入到交換機(jī),交換機(jī)接兩塊網(wǎng)卡,也就是說adsl通過交換機(jī)連接兩個(gè)網(wǎng)卡,進(jìn)入.\r\n2) 編譯帶有bonding driver的內(nèi)核\r\n在內(nèi)核選項(xiàng): \r\nDevice Drivers->\r\nNetwork device support->\r\n<M>Bonding driver support\r\n編譯成模塊。\r\n3) 獲取并安裝用戶管理工具\(yùn)r\n安裝ifenslave程序,gentoo是支持emerge的,其他版本的linux要自己找了,找不到的說說,有附帶源代碼\r\n#emerge ifenslave\r\n設(shè)置,執(zhí)行命令:\r\n#modprobe bonding\r\n加載模塊\r\n#ifconfig bond0 192.168.0.1 netmask 255.255.0.0\r\n設(shè)置設(shè)備bond0的IP\r\n#ifenslave bond0 eth0 eth1\r\n綁定兩個(gè)網(wǎng)卡\r\n用命令ifconfig看出bond0設(shè)備的情況:\r\n # ifconfig\r\nbond0 Link encap:Ethernet HWaddr 00:0A:EB:FA:08:A9\r\n inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.0.0\r\n UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1\r\n RX packets:179812 errors:0 dropped:0 overruns:0 frame:0\r\n TX packets:147859 errors:0 dropped:0 overruns:0 carrier:0\r\n collisions:0 txqueuelen:0\r\n RX bytes:204694202 (195.2 Mb) TX bytes:67080581 (63.9 Mb)\r\n\r\neth0 Link encap:Ethernet HWaddr 00:0A:EB:FA:08:A9\r\n UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1\r\n RX packets:89088 errors:0 dropped:0 overruns:0 frame:0\r\n TX packets:73543 errors:0 dropped:0 overruns:0 carrier:0\r\n collisions:0 txqueuelen:1000\r\n RX bytes:101695763 (96.9 Mb) TX bytes:33487215 (31.9 Mb)\r\n Interrupt:16 Base address:0x2f00\r\n\r\neth1 Link encap:Ethernet HWaddr 00:0A:EB:FA:08:A9\r\n UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1\r\n RX packets:90724 errors:0 dropped:0 overruns:0 frame:0\r\n TX packets:74318 errors:0 dropped:0 overruns:0 carrier:0\r\n collisions:0 txqueuelen:1000\r\n RX bytes:102998439 (98.2 Mb) TX bytes:33593500 (32.0 Mb)\r\n Interrupt:17 Base address:0x4e00\r\n\r\nlo Link encap:Local Loopback\r\n inet addr:127.0.0.1 Mask:255.0.0.0\r\n UP LOOPBACK RUNNING MTU:16436 Metric:1\r\n RX packets:269 errors:0 dropped:0 overruns:0 frame:0\r\n TX packets:269 errors:0 dropped:0 overruns:0 carrier:0\r\n collisions:0 txqueuelen:0\r\n RX bytes:21908 (21.3 Kb) TX bytes:21908 (21.3 Kb)\r\n\r\nppp0 Link encap oint-to-Point Protocol\r\n inet addr:221.4.185.60 P-t-P:221.4.184.1 Mask:255.255.255.255\r\n UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1\r\n RX packets:178863 errors:0 dropped:0 overruns:0 frame:0\r\n TX packets:146823 errors:0 dropped:0 overruns:0 carrier:0\r\n collisions:0 txqueuelen:3\r\n RX bytes:200336566 (191.0 Mb) TX bytes:63717954 (60.7 Mb)\r\n\r\n需要重新設(shè)置adsl,因?yàn)樵璦dsl是使用eth0,現(xiàn)在eht0和eth1都綁在bond0身上,沒有網(wǎng)卡了,所以,把這項(xiàng)改為:\r\n(default eth1): bond0\r\n啟動adsl,看到網(wǎng)卡和交換機(jī)的燈同時(shí)閃爍,說明已經(jīng)工作了.\r\n\r\n工作情況,如下:\r\n# dmesg |grep eth\r\neth0: RealTek RTL8139 at 0xd0802f00, 00:0a:eb:fa:08:a9, IRQ 16\r\neth0: Identified 8139 chip type \'RTL-8100B/8139D\'\r\neth1: RealTek RTL8139 at 0xd0804e00, 00:14:78:2c:d8:98, IRQ 17\r\neth1: Identified 8139 chip type \'RTL-8100B/8139D\'\r\neth0: link down\r\neth0: link down\r\neth1: link up, 100Mbps, full-duplex, lpa 0x45E1\r\neth1: link down\r\neth1: link up, 100Mbps, full-duplex, lpa 0x45E1\r\neth1: link down\r\neth0: link up, 100Mbps, full-duplex, lpa 0x45E1\r\neth1: link up, 100Mbps, full-duplex, lpa 0x45E1\r\neth0: link up, 100Mbps, full-duplex, lpa 0x45E1\r\nbonding: bond0: enslaving eth0 as an active interface with an up link.\r\neth1: link up, 100Mbps, full-duplex, lpa 0x45E1\r\nbonding: bond0: enslaving eth1 as an active interface with an up link.\r\n\r\n用bt下載一些文件,速度看不出加快,峰值是比原來高一些,那路高手有時(shí)間做做測試,搞些新玩法,貼貼出來,\r\n下面是參考文章:http://www.hackhome.com/2005/6-17/1904107338.shtml\r\n |
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