【正文】 PTV平臺(tái)互聯(lián)，則對(duì)從IPTV平臺(tái)進(jìn)入城域網(wǎng)的數(shù)據(jù)包的IP Precedence值設(shè)為5；對(duì)從城域網(wǎng)進(jìn)入IPTV平臺(tái)的數(shù)據(jù)包不進(jìn)行重新標(biāo)記。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。視頻類業(yè)務(wù)對(duì)應(yīng)高等級(jí)業(yè)務(wù)，業(yè)務(wù)標(biāo)記為5，在輪詢隊(duì)列1執(zhí)行調(diào)度，對(duì)此類業(yè)務(wù)采用WRR+帶寬預(yù)留的保障策略。B 為緩沖區(qū)長(zhǎng)度。目前城域網(wǎng)開展的主要業(yè)務(wù)及標(biāo)記策略情況對(duì)應(yīng)表：序號(hào)業(yè)務(wù)與業(yè)務(wù)支持業(yè)務(wù)類型分類及標(biāo)記策略與其它DiffServ的信任關(guān)系1互聯(lián)網(wǎng)業(yè)務(wù)普通PPPoE用戶在BRAS側(cè)對(duì)所有撥號(hào)用戶標(biāo)記為0 不信任ChianNet QoS等級(jí)，在ChinaNet入方向進(jìn)行QoS重標(biāo)記為0，信任CN2 QoS標(biāo)記個(gè)人VIP在BRAS側(cè)對(duì)所有VIP用戶標(biāo)記為0ADSL/LAN專線缺省設(shè)置為0，在BRAS側(cè)根據(jù)用戶接入?yún)f(xié)議，針對(duì)用戶所在Vlan或端口設(shè)置相應(yīng)的QoS標(biāo)記.光纖專線缺省設(shè)置為0，在SR側(cè)根據(jù)用戶接入?yún)f(xié)議，針對(duì)用戶所在Vlan或端口設(shè)置相應(yīng)的QoS標(biāo)記.2企業(yè)互聯(lián)業(yè)務(wù)專線MPLS VPN用戶缺省設(shè)置為0，根據(jù)用戶接入?yún)f(xié)議，在SR/BRAS上針對(duì)用戶所在端口設(shè)置相應(yīng)的QoS標(biāo)記撥號(hào)接入MPLS VPN用戶VPLS用戶L2TP用戶3視頻業(yè)務(wù)普通IPTV點(diǎn)播、直播業(yè)務(wù)BRAS上對(duì)該類用戶設(shè)置QoS標(biāo)記5 與IPTV平臺(tái)互聯(lián)端口對(duì)入方向數(shù)據(jù)標(biāo)記為5專線IPTV點(diǎn)播、直播，全球眼業(yè)務(wù)SR上對(duì)該類用戶設(shè)置QoS標(biāo)記5 4語(yǔ)音業(yè)務(wù)AG接入SR上對(duì)該類用戶設(shè)置QoS標(biāo)記4與本地NGN平臺(tái)BAC互聯(lián)端口入方向數(shù)據(jù)標(biāo)記為4，信任CN2 QoS標(biāo)記大客戶IAD接入SR上對(duì)該類用戶設(shè)置QoS標(biāo)記4普通IAD接入BRA上對(duì)該類用戶設(shè)置QoS標(biāo)記4 隊(duì)列調(diào)度1）、城域骨干網(wǎng)8個(gè)業(yè)務(wù)標(biāo)記、3個(gè)隊(duì)列：本期按照集團(tuán)指導(dǎo)意見規(guī)劃8個(gè)業(yè)務(wù)標(biāo)記，并在BRAS/SR及以上設(shè)備開啟3個(gè)隊(duì)列進(jìn)行調(diào)度。等級(jí)名稱城域網(wǎng)標(biāo)記(IP PRE/EXP)CN2標(biāo)記(IP PRE/EXP)城域骨干網(wǎng)隊(duì)列類型業(yè)務(wù)類型（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輪詢隊(duì)列1大客戶業(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)行分類和標(biāo)記功能。由DSLAM、 ONU或園區(qū)交換機(jī)根據(jù)VLAN 完成不同用戶或業(yè)務(wù)的CoS 分類和標(biāo)記；匯聚交換機(jī)或OLT設(shè)備再根據(jù)內(nèi)層VLAN 的CoS 標(biāo)記直接映射成外層VLAN 的CoS。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、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。根據(jù)各地市IP城域網(wǎng)QoS的部署情況，結(jié)合對(duì)集團(tuán)公司96號(hào)文件的規(guī)范要求和多年來(lái)豐富的網(wǎng)絡(luò)集成經(jīng)驗(yàn), 對(duì)現(xiàn)網(wǎng)數(shù)據(jù)進(jìn)行搜集、整理、分析和評(píng)估，特制訂了《浙江電信IP城域網(wǎng)QoS配置規(guī)范》。 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。IP 城域網(wǎng)業(yè)務(wù)接入控制點(diǎn)根據(jù)物理端口、邏輯子端口或CoS 位完成對(duì)接入用戶的分類和三層QoS 標(biāo)記（DSCP或EXP），并實(shí)現(xiàn)用戶上行流量的限速和用戶下行流量的限速、整形。由DSLAM 、園區(qū)交換機(jī)實(shí)、ONU實(shí)現(xiàn)接入用戶上行流量的限速。n 城域網(wǎng)信任CN2的標(biāo)記，對(duì)從CN2進(jìn)入城域網(wǎng)的數(shù)據(jù)包不進(jìn)行重新標(biāo)記；對(duì)進(jìn)入CN2的數(shù)據(jù)包不進(jìn)行重新標(biāo)記。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 開始丟包，Max 完全丟包。2）、優(yōu)先保障語(yǔ)音和視頻業(yè)務(wù)：目前規(guī)劃在IP城域網(wǎng)上承載的語(yǔ)音類業(yè)務(wù)主要是AG/IAD接入業(yè)務(wù)，按照規(guī)劃，對(duì)應(yīng)于嚴(yán)格優(yōu)先隊(duì)列，業(yè)務(wù)標(biāo)記為4，分配30%的帶寬給PQ隊(duì)列。建議初期采用寬裕帶寬預(yù)留的方式實(shí)現(xiàn)WRR調(diào)度。 與CN2互聯(lián)的端口：CN2城域網(wǎng)之間互相信任對(duì)端的QoS標(biāo)記，不做重新標(biāo)記。 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。 如果SR路由器與CN2 PE互聯(lián)，CN2城域網(wǎng)互相信任對(duì)端的QoS標(biāo)記，不做重新標(biāo)記。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。Policymap pmSetipp0 Class classdefault Set ip precedence 0Interface gi*/*/*/* servicepolicy input pmSetipp0分類將不同標(biāo)記的數(shù)據(jù)包歸入不同Class，其中cmCritical對(duì)應(yīng)關(guān)鍵業(yè)務(wù)，如語(yǔ)音業(yè)務(wù)；cmHigh對(duì)應(yīng)高等級(jí)業(yè)務(wù)，如IPTV、全球眼等視頻業(yè)務(wù)；最低等級(jí)cmDefault為缺省業(yè)務(wù)，對(duì)應(yīng)互聯(lián)網(wǎng)業(yè)務(wù)。set classofservice classifiers inetprecedence precClassifiers forwardingclass fcCritical losspriority low codepoints 110set classofservice classifiers inetprecedence precClassifiers forwardingclass fcCritical losspriority low codepoints 100set classofservice classifiers 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FC和queue的對(duì)應(yīng)關(guān)系。定義schedulermap將FC與scheduler關(guān)聯(lián)起來(lái)：set classofservice schedulermaps schmapNetwork forwardingclass fcCritical scheduler schCriticalset classofservice schedulermaps schmapNetwork forwardingclass fcHigh scheduler schHighset classofservice schedulermaps schmapNetwork forwardingclass fcDefault scheduler schDefault定義EXP和DSCP標(biāo)記重寫規(guī)則，實(shí)現(xiàn)FC到標(biāo)記的轉(zhuǎn)換：set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcDefault losspriority low codepoint 000set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcCopper losspriority low codepoint 001set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcSilver losspriority low codepoint 010set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcGold losspriority low codepoint 011set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcCritical losspriority low codepoint 100set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcPlatinum losspriority low codepoint 101set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcNetworkControl losspriority low codepoint 110set classofservice rewriterules inetprecedence rrMarkPrec forwardingclass fcDiamond losspriority low codepoint 111set classofservice rewriterules exp rrMarkEXP forwardingclass fcDefault losspriority low codepoint 000set classofservice rewriterules exp rrMarkEXP forwardingclass fcCopper losspriority low codepoint 001set classofservice rewriterules exp rrMarkEXP forwardingclass fcSilver losspriority low codepoint 010set classofservice rewriterules exp rrMarkEXP forwardingclass fcGold losspriority low codepoint 011set classofservice rewriterules exp rrMarkEXP forwardingclass fcCritical losspriority low codepoint 100set classofservice rewriterules exp rrMarkEXP forwardingclass fcPlatinum losspriority low codepoint 101set classofservice rewriterules exp rrMarkEXP forwardingclass fcNetworkControl losspriority low codepoint 110set classofservice rewriterules exp rrMarkEXP forwardingclass fcDiamond losspriority low codepoint 111將策略應(yīng)用到接口：隊(duì)列調(diào)度策略需要應(yīng)用到以下端口（主端口）： 與BAS和SR相連的所有端口 2臺(tái)核心路由器的互連端口標(biāo)記－隊(duì)列映射策略應(yīng)用到上述部署調(diào)度策略的端口（子端口）： 無(wú)子接口的端口，應(yīng)用到unit 0 有子接口的端口，應(yīng)用到對(duì)應(yīng)的unitset classofservice interfaces ge1/0/0 schedulermap schmapNetwork //隊(duì)列調(diào)度策略//set classofservice interf