Networking Heart

The ultimate repository and knowledge house of Networking- Switches, Routers, Routing protocols, QoS, ASICs, Cisco, Arista networks

Tuesday, 30 April 2019

OSPF Series 5: Link State Updates, Advertisements and Message Formats

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LS Updates (and Advertisements): Note there is no LS Advertisement packet as such. Link State Update is the type of OSPF packet that...
Wednesday, 24 April 2019

OSPF Series 4: Configuring OSPF, Wildcard in OSPF, Loopback Interfaces and Router-ID and Transit and Stub Networks

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Configuring OSPF: Configure IP address on an interface as 1.1.1.1/24 Then enable OSPF using
Friday, 19 April 2019

OSPF Series 3: DR-BDR Election Process with Flowchart

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DR and BDR Selection Process and Flowchart The DR and BDR happen for each segment of the network (not for each area). SO, it means o...
Wednesday, 17 April 2019

OSPF Series 2: OSPF Neighbor States, OSPF Interface States and OSPF Neighborship Formation Requirements

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OSPF NEIGHBOR STATES: The below are the neighbour OSPF states: \1. Down : no OSPF neighbors detected at this moment. \2. Init : Hell...
Thursday, 11 April 2019

OSPF Series 1: OSPF Introduction, and Different OSPF Packet Types and Formats

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OSPF Introduction: OSPF RFC- 2328 https://www.ietf.org/rfc/rfc2328.txt To start the OSPF connection, we only need the directly conn...
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