【正文】 fiers inetprecedence precClassifiers forwardingclass fcHigh losspriority low codepoints 001set classofservice classifiers inetprecedence precClassifiers forwardingclass fcHigh losspriority low codepoints 010set classofservice classifiers inetprecedence precClassifiers forwardingclass fcHigh losspriority low codepoints 011set classofservice classifiers inetprecedence precClassifiers forwardingclass fcHigh losspriority low codepoints 101set classofservice classifiers inetprecedence precClassifiers forwardingclass fcHigh losspriority low codepoints 111set classofservice classifiers inetprecedence precClassifiers forwardingclass fcDefault losspriority low codepoints 000定義轉(zhuǎn)發(fā)類(lèi)FC和queue的對(duì)應(yīng)關(guān)系。4 QOS配置模板 核心路由器配置 CRS1路由器配置 適用范圍n 軟件版本：n 硬件配置：現(xiàn)網(wǎng)CRS使用板卡均支持 配置說(shuō)明n 使用模塊化(MQC)的QOS命令行方式實(shí)現(xiàn)，分別定義classmap和policymap以及應(yīng)用servicepolicy) ；Classmap、policyma均為命名格式，采用匈牙利命名規(guī)則。 匯聚路由器/SR部署策略 啟用隊(duì)列調(diào)度機(jī)制和擁塞避免機(jī)制，按照調(diào)度策略進(jìn)行設(shè)置。建議初期采用寬裕帶寬預(yù)留的方式實(shí)現(xiàn)WRR調(diào)度。具體業(yè)務(wù)對(duì)應(yīng)等級(jí)、隊(duì)列關(guān)系確定如下：等級(jí)名稱(chēng)IP PRE/EXP帶寬保證丟包自營(yíng)關(guān)鍵業(yè)務(wù)4,630%Drop Tail 策略高等級(jí)業(yè)務(wù)7,5,3,2,150%丟包參數(shù)：Min=80%*B，Max=B,Min 開(kāi)始丟包，Max 完全丟包。由DSLAM 、園區(qū)交換機(jī)實(shí)、ONU實(shí)現(xiàn)接入用戶(hù)上行流量的限速。 本文在浙江電信城域網(wǎng)原有的QOS部署基礎(chǔ)上，整理出城域網(wǎng)各層面設(shè)備的QOS配置規(guī)范。浙江電信城域骨干網(wǎng)以基于DiffServ 為主的QoS 技術(shù)（業(yè)務(wù)分類(lèi)、標(biāo)記、流量控制、隊(duì)列調(diào)度等機(jī)制）提供突發(fā)擁塞時(shí)QoS 保證。等級(jí)名稱(chēng)城域網(wǎng)標(biāo)記(IP PRE/EXP)CN2標(biāo)記(IP PRE/EXP)城域骨干網(wǎng)隊(duì)列類(lèi)型業(yè)務(wù)類(lèi)型（參考）自營(yíng)關(guān)鍵業(yè)務(wù)100,110100,110嚴(yán)格優(yōu)先隊(duì)列3G/軟交換語(yǔ)音/網(wǎng)絡(luò)控制信息高等級(jí)業(yè)務(wù)111,101,011,010,001111,101,011,010,001輪詢(xún)隊(duì)列1大客戶(hù)業(yè)務(wù)，自營(yíng)視頻業(yè)務(wù)互聯(lián)網(wǎng)業(yè)務(wù)00輪詢(xún)隊(duì)列2互聯(lián)網(wǎng)業(yè)務(wù)n BRAS和SR做為DifferServ域的邊緣，執(zhí)行分類(lèi)和標(biāo)記功能。B 為緩沖區(qū)長(zhǎng)度。3 QOS部署策略 核心路由器部署策略 .啟用隊(duì)列調(diào)度機(jī)制和擁塞避免機(jī)制，按照調(diào)度策略進(jìn)行設(shè)置。 如果路由器與本地NGN的BAC互聯(lián)，則對(duì)從NGN平臺(tái)進(jìn)入的數(shù)據(jù)包的IP Precedence置為4；對(duì)進(jìn)入NGN平臺(tái)的數(shù)據(jù)包不進(jìn)行重新標(biāo)記。Policymap pmSetipp5 Class classdefault Set ip precedence 5Interface gi*/*/*/* servicepolicy input pmSetipp5對(duì)從163進(jìn)入的流量清除優(yōu)先級(jí)標(biāo)記，在核心路由器與Chinanet互聯(lián)的所有接口上應(yīng)用策略。set classofservice schedulers schDefault priority lowset classofservice schedulers schDefault transmitrate percent 20set classofservice schedulers schDefault buffersize temporal 20kset classofservice schedulers schDefault priority lowset classofservice schedulers schDefault dropprofilemap losspriority low protocol tcp dropprofile dropDefaultTCPset classofservice schedulers schDefault dropprofilemap losspriority low protocol nontcp dropprofile dropDefaultNonTCP//定義schDefault 為WFQ，帶寬分配20%，緩沖區(qū)大小為200000ms，并針對(duì)TCP和非TCP流量應(yīng)用WRED策略。針對(duì)一個(gè)端口在一個(gè)方向只能應(yīng)用一個(gè)policymap策略。當(dāng)隊(duì)列的長(zhǎng)度超過(guò)高限值時(shí)，丟棄所有到來(lái)的報(bào)文。超過(guò)緩存95%的時(shí)候，全部丟棄。Network口的分類(lèi)和標(biāo)記策略：ingress方向根據(jù)EXP，DSCP標(biāo)記進(jìn)入內(nèi)部轉(zhuǎn)發(fā)類(lèi)，同時(shí)標(biāo)記in/outprofilenetwork 100 description NETWORK QoS POLICY Ingress classification,Egress remarking ingress defaultaction fc be profile in dscp be fc be profile out dscp cs1 fc ef profile in dscp cs2 fc ef profile in dscp cs3 fc ef profile in dscp cs4 fc h2 profile in dscp cs5 fc ef profile in dscp nc1 fc h2 profile in dscp nc2 fc ef profile in lspexp 0 fc be profile out lspexp 1 fc ef profile in lspexp 2 fc ef profile in lspexp 3 fc ef profile in lspexp 4 fc h2 profile in lspexp 5 fc ef profile in lspexp 6 fc h2 profile in lspexp 7 fc ef profile in exit egress remarking fc af 將af隊(duì)列的流標(biāo)記為cs2和exp 2 dscpinprofile cs2 dscpoutprofile cs2 lspexpinprofile 2 lspexpoutprofile 2 dot1pinprofile 2 dot1poutprofile 2 exit fc be 將be隊(duì)列的流標(biāo)記為be和exp 0 dscpinprofile be dscpoutprofile be lspexpinprofile 0 lspexpoutprofile 0 dot1pinprofile 0 dot1poutprofile 0 exit fc ef 5 dscpinprofile cs5 dscpoutprofile cs5 lspexpinprofile 5 lspexpoutprofile 5 dot1pinprofile 5 dot1poutprofile 5 exit fc h1 將h1隊(duì)列的流標(biāo)記為nc1和exp 6 dscpinprofile nc1 dscpoutprofile nc1 lspexpinprofile 6 lspexpoutprofile 6 dot1pinprofile 6 dot1poutprofile 6 exit fc h2 4 dscpinprofile cs4 dscpoutprofile cs4 lspexpinprofile 4 lspexpoutprofile 4 dot1pinprofile 4 dot1poutprofile 4 exit fc l1 將l1隊(duì)列的流標(biāo)記為cs3和exp 3 dscpinprofile cs3 dscpoutprofile cs3 lspexpinprofile 3 lspexpoutprofile 3 dot1pinprofile 3 dot1poutprofile 3 exit fc l2 將l2隊(duì)列的流標(biāo)記為cs1和exp 1 dscpinprofile cs1 dscpoutprofile cs1 lspexpinprofile 1 lspexpoutprofile 1 dot1pinprofile 1 dot1poutprofile 1 exit fc nc 將nc隊(duì)列的流標(biāo)記為nc2和exp 7 dscpinprofile nc2 dscpoutprofile nc2