Type1 能做什么？

• Aliasing  -> 防环
• Mass Withdraw of addresses -> 快速收敛
• SH/AA MH Indication -> 更有效的负载均衡
• Advertising Split-Horizon Label -> 每站点Policy

Topology

完整阅读

Thanks @JianJian‘s sharing how to import global route in IXIA. The article have two part, 1st part was done by IxNetwork original way. 2nd part will done by IXNetwork Scenario (later updste).

Before import, we must have global route table file, we can download from follow lnik:

http://bgp.potaroo.net/as2.0/bgptable.txt

http://bgp.potaroo.net/v6/as2.0/bgptable.txt

完整阅读

VNF

VNF（Virtual Network Function）：是NFV（Network Function Virtualization）的一个组件，通过VNF，可以屏蔽硬件需求；可以通过VMs使用VNFs部署各种功能

VNFD（VNF Descriptor）：描述VNF，在其中VDU（Virtual Decice Unit）将会被定义，等同于单个的VM；简单的VNFD会包含单个VDU，复杂的VNFD会包含多个VDUs；VDU包含vCPU，memory，storage，image，flavor，NIC ID mapping和NED type等；NVFD在ETSI SOL001（YAML）和SOL006（Yang）标准中定义

VNF-info：真实网络连接信息，租户信息，凭据，启动和恢复时间，day0配置，ESC设备名称等

下面是上面几种信息的关系：

完整阅读

The article should applies to all eXR platform, include ASR9k, Cisco8000, NCS5500, NCS6k. The output information maybe different by diff platform, but the iPXE method should same. Btw in eXR, if you want to recovery password, will require iPXE.

Enable HTTP Service at linux

[root@nso exr]# python -m SimpleHTTPServer
Serving HTTP on 0.0.0.0 port 8000 ...

完整阅读

• Choose 2-3 router for FAD, but not all router
• Config follows configuration at FAD router:

router isis srte
affinity-map red bit-position 23
flex-algo 128
 priority 200
 metric-type delay
 advertise-definition
 affinity exclude-any red

• Config follows configuration at exclude/include function router:

router isis srte
affinity-map red bit-position 23
flex-algo 128
 metric-type delay <-- define in FAD
 affinity exclude-any red
!
inter gix/x/x/x
 affinity flex-algo red

• Config follows configuration at normal router:

router isis srte
flex-algo 128
  metric-type delay <-- define in FAD