【正文】 伸和安全保護提供了更為廣闊的發(fā)展空間。第三章 網(wǎng)絡(luò)方案設(shè)計三、內(nèi)部辦公網(wǎng)絡(luò)拓撲連接考慮到目前以太網(wǎng)發(fā)展的現(xiàn)狀和XXXX今后的發(fā)展，我們建議新建的亦莊辦公樓部署萬兆骨干、千兆到桌面的全交換網(wǎng)絡(luò)。核心層選用一臺Catalyst 6509交換機，配置兩塊720Gbps交換容量的Sup7203B引擎，配置4塊4端口10GE板卡，用于連接各個樓層的分布/接入層交換機和數(shù)據(jù)中心核心交換機SWSW2，共配13塊XNEPAK 10GE光收發(fā)模塊。分布/接入層交換機選用Catalyst 4510R交換機，配置一塊SUPV10GE引擎，利用引擎上的10GE上連端口和核心層交換機相連，構(gòu)成萬兆骨干。核心層核心層采用配備冗余交換引擎的單交換機設(shè)計，思科公司可提供狀態(tài)化切換（Stateful Switchover, SSO)和不間斷轉(zhuǎn)發(fā)（NonStop Forwarding, NSF )功能，可為交換機提供設(shè)備級永續(xù)性。SSO可實現(xiàn)生成樹信息、MAC地址表乃至硬件轉(zhuǎn)發(fā)項目和ACL等第二層信息在多個交換管理引擎之間的同步。而NSF則在第3層路由協(xié)議上實現(xiàn)類似結(jié)果和使用IETF標準路由協(xié)議的擴展（例如平穩(wěn)重起）。這些協(xié)議一起工作時可確保在多個交換管理引擎之間的快速故障切換以及對流量的不間斷轉(zhuǎn)發(fā)。分布/接入層桌面系統(tǒng)設(shè)計為10/100/1000M接入模式，辦公樓每層樓配置一臺Catalyst 4510R交換機，通過高密度的10/100/1000M RJ45模塊連接樓層內(nèi)的PC機。每臺樓層交換機都通過10GE光纖連接到核心層的Catalyst 6500交換機上。分布層可通過采用第三層交換和路由協(xié)議（OSPF或EIGRP）將每層樓隔離開。這就能創(chuàng)建一個第三層邊界，從而保護核心層免遭任何廣播風暴、潛在安全漏洞或生成樹配置錯誤的影響。在分布層上采用第三層交換還可限制可能發(fā)生的路由對等關(guān)系，從而進一步提高網(wǎng)絡(luò)可擴展性。對于10/100/1000M模塊的選擇，考慮到對IP電話機的供電支持，本方案建議Catalyst 4510R交換機配置48端口/24端口支持PoE功能的以太網(wǎng)模塊。這些模塊采用了思科公司獨特的智能化電源管理（Intelligent Power Management）功能，用戶可以很高的顆粒度來控制思科驅(qū)動設(shè)備上的功率分布。，同時仍保持了與該標準本身的兼容性。連接Cisco 。具體配置清單：新辦公樓匯聚交換機1WSC6509EEnh C6509 Chassis, 9slot, 15RU, No Pow Supply, No Fan Tray1S222AK912218SXDCisco CAT6000SUP2/MSFC2 IOS ENT W/IPV6/SSH/3DES1WSSUP7203BCatalyst 6500/Cisco 7600 Supervisor 720 Fabric MSFC3 PFC3B2WSCAC3000WCatalyst 6500 3000W AC power supply2MEMC6KCPTFL128MCat6500 Sup720 Compact Flash Mem 128MB2WSSVCNAM2Catalyst 6500 Network Analysis Module20WSX670410GECat6500 4port 10 Gigabit Ethernet Module (req. XENPAKs)4WSF6700DFC3BCatalyst 6500 Dist Fwd Card, 256K Routes for WSX67xx 4WSC6509EFANCatalyst 6509E Chassis Fan Tray1X210GBLR10GBASELR X2 Module13樓層接入交換機7臺18FWSC4510RCatalyst 4500 Chassis (10Slot),fan, no p/s,Red Sup Capable1PWRC452800ACVCatalyst 4500 2800W AC Power Supply (Data and PoE)1PWRC452800ACV/2Catalyst 4500 2800W AC Power Supply (Data and PoE)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4524GBRJ45VCatalyst 4500 PoE 10/ 100/1000 24ports (RJ45) 1WSX4548GBRJ45VCatalyst 4500 PoE 10/100/1000, 48Ports (RJ45)27F1WSC4510RCatalyst 4500 Chassis (10Slot),fan, no p/s,Red Sup Capable1PWRC452800ACVCatalyst 4500 2800W AC Power Supply (Data and PoE)1PWRC452800ACV/2Catalyst 4500 2800W AC Power Supply (Data and PoE)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4524GBRJ45VCatalyst 4500 PoE 10/ 100/1000 24ports (RJ45) 1WSX4548GBRJ45VCatalyst 4500 PoE 10/100/1000, 48Ports (RJ45)56F1WSC4510RCatalyst 4500 Chassis (10Slot),fan, no p/s,Red Sup Capable1PWRC452800ACVCatalyst 4500 2800W AC Power Supply (Data and PoE)1PWRC452800ACV/2Catalyst 4500 2800W AC Power Supply (Data and PoE)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4524GBRJ45VCatalyst 4500 PoE 10/ 100/1000 24ports (RJ45) 1WSX4548GBRJ45VCatalyst 4500 PoE 10/100/1000, 48Ports (RJ45)55F1WSC4510RCatalyst 4500 Chassis (10Slot),fan, no p/s,Red Sup Capable1PWRC452800ACVCatalyst 4500 2800W AC Power Supply (Data and PoE)1PWRC452800ACV/2Catalyst 4500 2800W AC Power Supply (Data and PoE)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4548GBRJ45VCatalyst 4500 PoE 10/100/1000, 48Ports (RJ45)54F (IDC)2WSC4506Catalyst 4500 Chassis (6Slot),fan, no p/s1PWRC451400ACCatalyst 4500 1400W AC Power Supply (Data Only)1PWRC451400AC/2Catalyst 4500 1400W AC Power Supply Redundant(Data Only)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4548GBRJ45Catalyst 4500 Enhanced 48Port 10/100/1000 BaseT (RJ45)23F (IDC)2WSC4506Catalyst 4500 Chassis (6Slot),fan, no p/s1PWRC451400ACCatalyst 4500 1400W AC Power Supply (Data Only)1PWRC451400AC/2Catalyst 4500 1400W AC Power Supply Redundant(Data Only)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4548GBRJ45Catalyst 4500 Enhanced 48Port 10/100/1000 BaseT (RJ45)22F1WSC4510RCatalyst 4500 Chassis (10Slot),fan, no p/s,Red Sup Capable1PWRC452800ACVCatalyst 4500 2800W AC Power Supply (Data and PoE)1PWRC452800ACV/2Catalyst 4500 2800W AC Power Supply (Data and PoE)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2 Module1S4KL3EK912225EWACisco IOS ENHNCD L3 C4500 SUP4/5,3DES(OSPF,EIGRP,ISIS)1WSX4524GBRJ45VCatalyst 4500 PoE 10/ 100/1000 24ports (RJ45) 1WSX4548GBRJ45VCatalyst 4500 PoE 10/100/1000, 48Ports (RJ45)31F1WSC4510RCatalyst 4500 Chassis (10Slot),fan, no p/s,Red Sup Capable1PWRC452800ACVCatalyst 4500 2800W AC Power Supply (Data and PoE)1PWRC452800ACV/2Catalyst 4500 2800W AC Power Supply (Data and PoE)1WSX451610GECatalyst 4500 Supervisor V10GE, 2x10GE (X2) or 4x1GE (SFP)1X210GBLR10GBASELR X2