Interior Routing Protocols

KHNOG  Micro-­‐Event  30  December  2015  

 Meun  Dol  

meundol@chuanwei.com.kh    

Agenda

 •  Interior  RouEng  Overview  •  Type  of  Interior  RouEng  • OSPF  RouEng  Protocol  • OSPF  ConfiguraEon  

Interior Routing Overview We  are  using  BGP  Protocol  between  Provider  and  Customer.  

ISP  Core  Network

Providers Providers

Customers Customers

eBGPeBGP

eBGP eBGP

Interior Routing Overview Look  inside  the  Services  ISP  Core  Network  

Customers Customers

ProvidersProviders

Core  Router

PE

PEPE

PE

OSPF

Type of Interior Routing Protocol • Distance  Vector  RouEng  Protocol    

•  RouEng  InformaEon  Protocol  (RIP)  •  Enhanced  Interior  Gateway  RouEng  Protocol  (EIGRP)  

•  Link  State  RouEng  Protocol  •  Open  Shortest  Path  First  (OSPF)  •  Intermediate  System  to  Intermediate  System  (IS-­‐IS)  

 

OSPF Routing Protocol •  Link  State  RouEng  Protocol  • Open  Standard  RouEng  Protocol  •  Fast  Convergence  •  Scalable  RouEng  protocol    •  Secure  RouEng  Protocol  • Commonly  use  in  the  producEon  network  

OSPF Study Case Diagram

Providers

Core  Router

PE01

PEPE

PE

OSPF

Gi1/1

Gi1/1

Gi1/2

Po1

P01

Lo0:209.165.100.10 Lo0:209.165.100.11

Lo0:209.165.100.1 Lo0:209.165.100.2

Lo0:209.165.100.8 Lo0:209.165.100.9

209.165.1.2

209.165.1.1

209.165.1.5209.165.1.9

OSPF Configuration on PE !  router  ospf  1    router-­‐id  209.165.100.10    auto-­‐cost  reference-­‐bandwidth  10000    redistribute  connected  metric-­‐type  1  subnets    redistribute  sta=c  metric-­‐type  1  subnets    passive-­‐interface  default    no  passive-­‐interface  GigabitEthernet1/1    network  209.165.1.2  0.0.0.0  area  0    default-­‐informa=on  originate  metric  30  !  !          

OSPF Configuration on P Router !  router  ospf  1    router-­‐id  209.165.100.1    auto-­‐cost  reference-­‐bandwidth  10000    redistribute  connected  metric-­‐type  1  subnets    redistribute  sta=c  metric-­‐type  1  subnets    passive-­‐interface  default    no  passive-­‐interface  GigabitEthernet1/1    no  passive-­‐interface  GigabitEthernet1/2    no  passive-­‐interface  Po1    network  209.165.1.1  0.0.0.0  area  0    network  209.165.1.5  0.0.0.0  area  0    network  209.165.1.9  0.0.0.0  area  0    

Thank You!