以前一直都是使用OPENWRT自带的adblock进行广告过滤，但是总觉得不好用。搜索发现网上牛人都是添加adbyby进行广告过滤，所以我也研究编译了下，并记录了过程。
月份：2017年4月
WNDR3700V4完全使用128M FLASH
有个网件的WNDR3700v4，刷了OPENWRT官方的固件后可用FLASH的空间太小，大概就16M可用空间左右，而官方FLASH参数为128M。
NXOS9000v说明及限制
About NX-OSv 9000
The NX-OSv 9000 is a virtual platform that is designed to simulate the control plane aspects of a network element running Cisco Nexus 9000 software. The NX-OSv 9000 shares the same software image running on Cisco Nexus 9000 hardware platform although no specific hardware emulation is implemented. When the software runs as a virtual machine, line card (LC) ASIC provisioning or any interaction from the control plane to hardware ASIC is handled by the NX-OSv 9000 software data plane.
NXOS9000v VxLAN配置实验
前段时间研究了VxLAN的相关知识，但是都是基于CSR1000v的实验，这次我的实验使用NXOS9K来做了。
VMware宣布将不支持第三方虚拟交换机
这家知名虚拟化技术厂商表示，几乎没有一个客户不在使用其分布式交换机或标准交换机。
CSR1000v VxLAN组播实验
VXLAN is an acronym for Virtual extensible Local Area Network. A joint venture by a few companies of which Cisco is one of them.VXLAN is yet another overlay solution which provides a solution to facilitate sending Layer-2 traffic over a Layer-3 network.
Also, one major reason for VXLAN [as per me at least] is due to the importance virtualization and cloud computing are gaining over the recent years. To isolate huge number customers in a cloud environment becomes extremely challenging when we have just 4,096 VLANs currently available to us [of which again, some cannot be used].
CSR1000v VxLAN单播实验
With the release of XE-3.13 VXLAN gets a much awaited unicast flavor. The configuration doesn’t change by much [except from the obvious that is there are no multicast configurations].
Multicast VXLAN, read up: https://iteachs.com/?post=110
A part from the addition of the unicast mode support for VXLAN, they have also changed the port-number. Initially the port was the same as that used by OTV, however, now that has changed.
VxLAN技术研究
一、OVERLAY网络简介
OVERLAY网络的诞生很大程度上是因为云计算、虚拟化相关技术的发展，传统的网络无法满足于规模大、灵活性要求高的云数据中心的要求，于是便有了OVERLAY网络的概念。在介绍OVERLAY网络之前，首先说明一个问题，在SDN非常火爆的今天，很多人认为OVERLAY是一种SDN的解决方案，把OPENFLOW跟OVERLAY对立或者并列，其实这个不对。OVERLAY只是种组网方案，OPENFLOW是一个控制协议，所以实际网络中，可以是这样的：控制器通过OPENFLOW协议控制vSwitch来构建一个OVERLAY网络。