【正文】 24port 10/100/1000BaseT (8ports PoE) + 320W AC PS$6,300 Trade Agreement Act CompliantEX420048PTAAEX 4200 TAA, 48port 10/100/1000BaseT PoE + 930W AC PS$12,700 Trade Agreement Act CompliantEX420048TTAAEX 4200 TAA, 48port 10/100/1000BaseT (8ports PoE) + 320W AC PS(power cord needs to be ordered separately)$1,500 Uplink ModulesEXUM2X4SFPEX4200 and EX3200 2Port 10G SFP+ / 4port 1G SFP Uplink Moduleslot (Spare)$50 SparesEXWMKEX4200 and EX3200 wall mount kit$200 SparesEXWMKBFLEX4200, EX3200 and EX2200 Wall Mount Kit with Baffle$200 SparesREUSB1GSUSB media upgrade/spare for RE$300 SparesREUSB2GS2GB USB media upgrade/spare for RE$600 SparesREUSB4GS4GB USB media upgrade/spare for RE$1,200 Power SuppliesEXPWR190DCEX 4200 and EX 3200 190W DC Power Supply 支持40km 的單模光纖傳輸距離EXXFP10GEZRXFP 10GBASEZR。transmission on SMF$1,000 OpticsEXSFP1GELHSFP 1000BaseLH Gigabit Ethernet Optics, 1550nm for 70km transmission on SMF$6,000 OpticsEXSFP1GELXSFP 1000BaseLX Gigabit Ethernet Optics, 1310nm for 10km transmission on SMF$1,000 OpticsEXSFP1GELX40KSFP 1000BaseLX Gigabit Ethernet Optics, 1310nm for 40 km transmission on SMF$2,500 OpticsEXSFP1GESXSFP 1000BaseSX Gigabit Ethernet Optics, 850nm for upto 550m transmission on MMF$500 OpticsEXSFP1GETSFP 1000BaseT 10/100/1000 Copper Transceiver Module for up to 100m transmission on Cat5$400 OpticsEXSFPFE20KT13R15SFP 100BaseBX Fast Ethernet Optics, Tx 1310nm/Rx 1550nm for 20km transmission on single strand of SMF$550 OpticsEXSFPFE20KT15R13SFP 100BaseBX Fast Ethernet Optics, Tx 1550nm/Rx 1310nm for 20km transmission on single strand of SMF$550 OpticsEXSFPGE10KT13R14SFP 1000BaseBX Gigabit Ethernet Optics, Tx 1310nm/Rx 1490nm for 10km transmission on single strand of SMF$1,800 OpticsEXSFPGE10KT13R15SFP 1000BaseBX Gigabit Ethernet Optics, Tx 1310nm/Rx 1550nm for 10km transmission on single strand of SMF$1,500 OpticsEXSFPGE10KT14R13SFP 1000BaseBX Gigabit Ethernet Optics, Tx 1490nm/Rx 1310nm for 10km transmission on single strand of SMF$2,100 OpticsEXSFPGE10KT15R13SFP 1000BaseBX Gigabit Ethernet Optics, Tx 1550nm/Rx 1310nm for 10km transmission on single strand of SMF$2,500 OpticsEXSFPGE40KT13R15SFP 1000BaseBX Gigabit Ethernet Optics, Tx 1310nm/Rx 1550nm for 40km transmission on single strand of SMF$2,600 OpticsEXSFPGE40KT15R13SFP 1000BaseBX Gigabit Ethernet Optics, Tx 1550nm/Rx 1310nm for 40km transmission on single strand of SMF$3,000 OpticsEXXFP10GEERXFP 10GBaseER 10 Gigabit Ethernet Optics Module, 1550nm for 40km transmission on SMF$10,000 OpticsEXXFP10GELRXFP 10GBaseLR 10 Gigabit Ethernet Optics Module, 1310nm for 10km transmission on SMF$4,800 OpticsEXXFP10GESRXFP 10GBaseSR 10 Gigabit Ethernet Optics Module. 850nm for up to 300m transmission on MMF$2,000 OpticsEXXFP10GEZRXFP 10GBaseZR 10 Gigabit Ethernet Optics Module, 1550nm for 80km transmission on SMF$14,000 Power CablesCBLEXPWRC13CHAC Power Cable, China (10A/250V, )$50 showbasesystem：選配：SKU接入端口配置PoE端口高系統(tǒng)電源 (使用PoE)EX320024T24端口10/100/1000BASET81RU190 W AC (320 W AC)EX320024P24端口10/100/1000BASET241RU190 W AC (600 W AC)EX320048T48端口10/100/1000BASET81RU190 W AC (320 W AC)EX320048P48端口10/100/1000BASET481RU190 W AC (930 W AC)EX320024TDC24端口10/100/1000BASET01RU190 W DCEX320048TDC48端口10/100/1000BASET01RU190 W DCEX 3200機型編號說明交換機和軟件許可EX 320024T24端口10/100/1000BASET (8 PoE 端口)+320W AC PSUEX 320024P24端口10/100/1000BASET (24 PoE 端口)+600W AC PSUEX 320048T48端口10/100/1000BASET (8 PoE 端口)+320W AC PSUEX 320048P48端口10/100/1000BASET (48 PoE 端口)+930W AC PSUEX 320024TDC24端口10/100/1000BASET +190W DC PSUEX 320048TDC48端口10/100/1000BASET +190W DC PSU高級特性許可EX24AFL*面向 EX 320024T、EX 320024TDC和EX 320024P交換機的高級特性許可證EX48AFL*面向EX 320048T、EX 320048TDC和EX 320048P交換機的高級特性許可證上行鏈路模塊EXUM2XFP2端口萬兆以太網(wǎng) XFP上行鏈路模塊EXUM4SFP4端口千兆以太網(wǎng) SFP上行鏈路模塊電源**EXPWR320AC320W AC電源(PSU)EXPWR600AC600W AC電源(PSU)EXPWR930AC930W AC電源(PSU)EXPWR190DC190W DC電源(PSU)可插拔的光接口EXSFP1GESXSFP 1000BASESX，850nm，支持550m的多模光纖傳輸距離EXSFP1GELXSFP1000BASELX，1310nm，支持10km的單模光纖傳輸距離EXSFP1GELHSFP 1000BASELH，1550nm，支持70km的單模光纖傳輸距離EXSFP1GETSFP 10/100/1000BASET銅纜收發(fā)器模塊，支持100m 的UTP傳輸距離EXSFP1FEFXSFP 100BASEFX，1310nm，支持2km的單模光纖傳輸距離EXXFP10GESRXFP 10GBASESR；LC連接器；850nm, EXXFP10GELRXFP 10GBASELR。(power cord needs to be ordered separately)$1,500 Uplink ModulesEXUM2X4SFPEX4200 and EX3200 2Port 10G SFP+ / 4port 1G SFP Uplink Module$7,500 選配類型型號描述GLPPower SuppliesEXPWR190DCEX 4200 and EX 3200 190W DC Power Supply2 EX2200沒有DC電源常用配置：型號描述GLPEX220048T4GEX 2200, 48port 10/100/1000BaseT with 4 SFP uplink ports (optics not included)$3,595 EXSFP1GESXSFP 1000 BASESX；LC 連接器；850 nm；多模光纖可達 550 米$500 *2EXSFP1FEFX SFP 100BASE FX；LC 連接器；1310 nm；多模光纖可達 2 公里$250 *2 ex 3200ex3200同樣用于接入層，提供雙電源冗余(部署雙電源時，支持熱插拔)，USB接口（升級備份配置和junos），LCD顯示器，模塊化風(fēng)扇，協(xié)議支持完整。對于大型園區(qū)網(wǎng)和城域網(wǎng)用戶，討論交換機的體系結(jié)構(gòu)和第三層優(yōu)化算法是有意義的。交換引擎的轉(zhuǎn)發(fā)性能 (交換容量、轉(zhuǎn)發(fā)能力）由于交換引擎是作為模塊化交換機數(shù)據(jù)包轉(zhuǎn)發(fā)的核心，所以這一指標能夠真實反映交換機的性能。）滿配置吞吐量(Mpps)=滿配置GE端口數(shù)。背板帶寬決定了各板卡（包括可擴展插槽中尚未安裝的板卡）與交換引擎間連接帶寬的最高上限。2 EX產(chǎn)品線 Remended Junos 交換機指標背板帶寬引擎轉(zhuǎn)發(fā)性能（交換容量、轉(zhuǎn)發(fā)能力）只有模塊交換機（擁有可擴展插槽，可靈活改變端口數(shù)量）才有這個概念，固定端口交換機是沒有這個概念的，并且固定端口交換機的背板容量和交換容量大小是相等的。從兩個方面來考慮一個交換機的背板帶寬是否夠用：）所有端口容量X端口數(shù)量之和的2倍(2倍為考慮端口模式為全雙工的情況)應(yīng)該小于背板帶寬，可實現(xiàn)全雙工無阻塞交換，證明交換機具有發(fā)揮最大數(shù)據(jù)交換性能的條件。一般是兩者都滿足的交換機才是合格的交換機。但是，對于一般的局域網(wǎng)用戶而言，只關(guān)心這兩個指標就可以了，它是決定該系統(tǒng)性能的關(guān)鍵指標。常用型號 EX220048T4G 性能參數(shù)EX 220048TCPU800MHz ARM CPUFlash1GDRAM512MB體積 x x 公分（1U）數(shù)據(jù)速率24P/24T: 56 Gbps ? 48P/48T: 104 Gbps（限速）吞吐量L2 吞吐量 (Mpps