【正文】 0GE不能實(shí)現(xiàn)類似ES20的BridgeDomain的終結(jié)，而且在進(jìn)行三層終結(jié)的時(shí)候占用的是全局VLAN，因此需要對(duì)組播VLAN和點(diǎn)播VLAN進(jìn)行全局的規(guī)劃。在優(yōu)化平面IPTV子網(wǎng)中，VOIP的業(yè)務(wù)實(shí)現(xiàn)模式和IPTV的點(diǎn)播實(shí)現(xiàn)方式基本是一致的。對(duì)與新增C7609，做為IPTV的SR暫時(shí)我們可以沿用GSR12416的QOS策略，實(shí)現(xiàn)對(duì)IPTV組播和點(diǎn)播的QOS質(zhì)量保障，隨著IPTV應(yīng)用的開展，在需要部署層次化QOS的時(shí)候，可以根據(jù)需求部署層次化的QOS?？梢詫⒑芏郉SLAM終結(jié)到一個(gè)Bridgedomian可以大大減少接口的數(shù)量，實(shí)施相對(duì)容易實(shí)現(xiàn)層次化QOS終結(jié)的是單層一VLAN，通過子接口方式，以后擴(kuò)展不方便。41 / 41。通過以上比較，從實(shí)施風(fēng)險(xiǎn)和項(xiàng)目實(shí)施的難易程度以及如果需要穩(wěn)定實(shí)施的角度來說，方式一是比較好的方式。6 C7609業(yè)務(wù)實(shí)現(xiàn)的模式的選擇以上兩種方案都C7609都可以實(shí)現(xiàn)上海電信IPTV的業(yè)務(wù)模式。逸仙C7609：track 1 interface POS1/0/0 lineprotocoltrack 2 interface POS2/0/0 lineprotocolinterface Vlan 2007 // VOIP vlan description ipbyx76091 to ipbayxhw7810 ip vrf forwarding vrf3VOIPITMS 指定端口在VOIP vrf中 ip address ip helperaddress 設(shè)置DHCP Relay ip helperaddress 設(shè)置DHCP Relay vrrp 10 ip //設(shè)置VRRP虛擬地址 vrrp 10 preempt vrrp 10 track 1 vrrp 10 track 2 vrrp 10 priority 1105 //設(shè)置VRRP優(yōu)先級(jí)routemap VOIP_route permit 1000 match interface Vlan 2007 //主用逸仙C7609設(shè)置 set set localpreference 200origin igproutemap VOIP_route permit 2000 set localpreference 100長(zhǎng)陽C7609：interface Vlan 2007 VOIP vlan description ipbyx76091 to ipbayxhw7810 ip vrf forwarding vrf3VOIPITMS 指定端口在VOIP vrf中 ip address ip helperaddress 設(shè)置DHCP Relay ip helperaddress 設(shè)置DHCP Relay vrrp 10 ip //設(shè)置VRRP虛擬地址routemap VOIP_route permit 1000 match interface Vlan 2008 //主用長(zhǎng)陽C7609設(shè)置 set set localpreference 200set origin igproutemap VOIP_route permit 2000 set set localpreference 100 addressfamily ipv4 vrf vrf3dslam redistribute connected routemap VOIP_route redistribute static maximumpaths 2 no synchronization bgp dampening exitaddressfamily C7609的QOS配置優(yōu)化平面IPTV組播、單播的等級(jí)劃分和隊(duì)列定義等級(jí)優(yōu)先級(jí)(從高到低)等級(jí)名稱QOS標(biāo)記(IP Pre/EXP)城域骨干網(wǎng)隊(duì)列類型(參考)業(yè)務(wù)類型4關(guān)鍵業(yè)務(wù)100嚴(yán)格優(yōu)先隊(duì)列3G/軟交換語音等，IPTV組播6骨干網(wǎng)絡(luò)專用110輪循隊(duì)列網(wǎng)絡(luò)控制信息或城域網(wǎng)專用7城域網(wǎng)鉆石業(yè)務(wù)111輪循隊(duì)列大客戶鉆石業(yè)務(wù)、IPTV點(diǎn)播5城域網(wǎng)白金業(yè)務(wù)101輪循隊(duì)列大客戶白金業(yè)務(wù),全球眼3城域網(wǎng)金業(yè)務(wù)011輪循隊(duì)列大客戶金業(yè)務(wù)2城域網(wǎng)銀業(yè)務(wù)010輪循隊(duì)列大客戶銀業(yè)務(wù)1城域網(wǎng)銅業(yè)務(wù)001輪循隊(duì)列大客戶銅業(yè)務(wù)0CHINANET業(yè)務(wù)000輪循隊(duì)列CHINANET業(yè)務(wù)當(dāng)前GSR12416 QOS部署：在連接CDN POP上點(diǎn)播流量應(yīng)用的QOS 標(biāo)記policymap pmMarkIPTV_Unicast class classdefault set precedence 7 set mpls experimental 7nterface GigabitEthernet4/0/0 description ipbsdahgsr4161 to IPTVPOP DAH_T64G22/9ip vrf forwarding vrf3IPTV ip address servicepolicy input pmMarkIPTV_Unicast在連接核心IPTV POP上組播流量應(yīng)用的QOS 標(biāo)記policymap pmMarkIPTV_Multicast class classdefault set precedence 4 set mpls experimental 4interface GigabitEthernet4/0/0 description ipbsjygsr4161 to IPTVCORE xxsn_T160G12/9 ip address servicepolicy input pmMarkIPTV_Multicast在GSR12416出接口上應(yīng)用QOS策略policymap pmOutput class cmCritical priority police cir percent 20 bc 1 ms be 1 ms conformaction transmit exceedaction drop class cmNetworkControl bandwidth remaining percent 5 randomdetect randomdetect precedence 6 10 ms 20 ms 1 class cmDiamond bandwidth remaining percent 37 randomdetect randomdetect precedence 7 2 ms 5 ms 1 class cmPlatinum bandwidth remaining percent 15 randomdetect randomdetect precedence 5 2 ms 5 ms 1 class cmGold bandwidth remaining percent 10 randomdetect randomdetect precedence 3 4 ms 10 ms 1 class cmSilver bandwidth remaining percent 8 randomdetect randomdetect precedence 2 4 ms 10 ms 1 class cmCopper bandwidth remaining percent 5 randomdetectrandomdetect precedence 1 4 ms 10 ms 1interface GigabitEthernet2/1/ encapsulation dot1Q 3010 ip vrf forwarding vrf3IPTV ip address ip helperaddress ip helperaddress servicepolicy output pmOutput以上QOS配置IPTV的點(diǎn)播流量和組播流量可以依據(jù)QOS的標(biāo)記為在數(shù)據(jù)流在從源到IPTV客戶端的過程中得到保障。WSX670410GE組播、點(diǎn)播終結(jié)方式：interface TenGigabitEthernet9/1 switchport switchport trunk encapsulation dot1q switchport trunk allowed vlan 66,3401 //VLAN 66組播VLAN，VLAN3401點(diǎn)播VLAN switchport mode trunkinterface Vlan66 //組播終結(jié) description TO IPTV CDN Multicat ip add ip pim drpriority 100 ip pim sparsemodeinterface Vlan3401 //點(diǎn)播終結(jié) description TO IPTV CDN UniCast ip vrf forwarding vrf3IPTV ip address 對(duì)于CDN POP上聯(lián)IPTV SR既連GSR12416又連C7609的點(diǎn)，建議C7609 WSX670410GE的4個(gè)10 GE端口，使用物理接口與CDN POP網(wǎng)絡(luò)建立三層的連接，不使用子接口或者Trunk＋SVI方式。 interface TenGigabitEthernet3/0/0service instance 51 ethernet // instance 51本接口有效與下行組播VLAN保持一致 encapsulation dot1q 51 rewrite ingress tag pop 1 symmetric bridgedomain 51 splithorizon //Bridge Domain C7609全局有效interface TenGigabitEthernet3/0/1service instance 51 ethernet encapsulation dot1q 51 rewrite ingress tag pop 1 symmetric bridgedomain 52 splithorizon //將接口下的組播VLAN51，通過BriddgeDomaun終結(jié)到全