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core的范围内，所有的链路都是10G;从core到distribution节点都是2~6条1g的链路~~~
刚刚做完这个，关于流量，因为还没有部署QoS架构，所以出口的节点都是100%；即使链路带宽是1000G,我相信也很快会被占满，这个是网络本身的特性~~~
Routing:关于路由，在这个拓扑里的IGP路由是OSPF+IBGP,原因有2个，A: core & distribution用的是Juniper; B:因为有MPLS接口运行eBGP,这个样子不必再做route distribution在边界上，此外bgp可以控制inbound和outbound流量的路线和节点。
整个网络上hosting滴subnets差不多超过300多个，所以不用静态路由。
PS.本网络已经启用将近1个半月，目前为止没有任何关于路由或者交换的问题~~~
现在的挑战是，我如何把一个IPS集成到这样一个架构设计中去，如何在几个DMZ中移入所有的Internet facing服务
Backgroud: This is a brand new network design with double 2 homed/2 hosted access to MPLS cloud/International MPLS cloud/Internet; will support two data centres with DR and 660 branch sites accross entire earth.
13楼，看别人帖子要用心，我清清楚楚，明明白白写了IGP是OSPF+iBGP,丫一直说什么单一OSPF不好·#！￥%#·
Besides that, I would like to mension something else about the products choosing for such a multi-million network project, the decision should be driven by the cost rather than the capacities/techs, as preety much you will be able to get the similar fit for purposes products from the top 3 vendors. The key is how to cut the cost and save the money for the business. And this is not something one time off investment from long term point of view. To make up the cost evalution, you have to think about the operation and maintaince as well. (In our case, it doesn't mean J's capacities is better than Cisco, the only reason is because they are cheaper than Cisco in many ways.)
About the VoIP solution: We went for Simense HiPath rather than Cisco/Awaya; however as I mensioned before, it is not running properly as there is no QoS been build and enforced in the entire network.
About the DR: It is very challeging for me, as the SAN is running and hosting on a completed isolated network from the new production network. We are going to put everything on the new network, but you know it is going to be a joke with out a good QoS enforcment.
Then about the IPS roll out, thanks so much for your updates, which is very useful.
[ 本帖最后由 夜游神 于 2011-5-10 14:24 编辑 ] |
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皖南旧韵(圖文) (2008-9-22) 着我青衣永飘零 
发表于 2011-5-7 00:22
