Cisco DataCenter 网络设计的思路.ppt

多Block的高带宽互联 的一个解决方案 多Block的高带宽互联 的一个解决方案 多Block的高带宽互联 的一个解决方案 VDC 和 MPLS VPN VDC 在物理设备上的虚拟机器 数量有限制，最多4个 每个VDC 独立管理，硬件资源采用硬分开的方式 各个VDC 的资源独立，使得整机资源能力*N 管理以物理端口为主要对象，调测简单 故障有效隔离，资源独立 VDC 应用场景 Sample 园区核心 数据中心 园区或者大楼网的核心用XL 的板卡做VDC 数据中心用普通卡做VDC 安全隔离VDC 和第三方的入口做一个VDC 自己内网单独VDC 测试VDC 业务网在主用VDC 网络测试采用单独VDC …… VoQ Buffer VoQ 解决交换矩阵的HOL, 使得58%利用率接近100% VoQ 提供了一种无HOL 的Flow-Control传导机制 Egress - Fabric - VoQ - Ingress 可以实现Buffer 的逻辑扩展 (Delay-Drop) 可以实现No-Drop Ethernet by Class Buffer N7K‘s port ASIC: Shared memory for all ports N7K’s software: static alloc memory for each port. if you want load-sharing _only_ on source address, connect the device using a PortChannel where you can configure to source-only:?ltd-n7010-1(config)# port-channel load-balance ethernet ???dest-ip-port ?????????????Destination IP address and L4 port??dest-ip-port-vlan ????????Destination IP address, L4 port and VLAN??destination-ip-vlan ??????Destination IP address and VLAN??destination-mac ??????????Destination MAC address??destination-port ?????????Destination L4 port??source-dest-ip-port ??????Source Destination IP address and L4 port??source-dest-ip-port-vlan ?Source Destination IP address, L4 port and VLAN??source-dest-ip-vlan ??????Source Destination IP address and VLAN??source-dest-mac ??????????Source Destination MAC address??source-dest-port ?????????Source Destination L4 port??source-ip-port ???????????Source IP address and L4 port??source-ip-port-vlan ??????Source IP address, L4 port and VLAN??source-ip-vlan ???????????Source IP address and VLAN??source-mac ???????????????Source MAC address??source-port ??????????????Source L4 port?the source options have been available since day one. 横过风 变 前后过风 机架 C:\DataHouse\Cisco\Cisco Product\DC3\NX7000\DataSheet 18槽变风向机架.pdf Mighty Mo 10 Designed for Cisco Integration Nexus 7018 Designed for 10G and Cat6A Ultra-High Density switches require optimised cabling solutions Nexus 7018 Switch designed to support 100%