OSPF Packet Types: The Ultimate Guide 2023
OSPF Packet Types There are five types of OSPF packets, namely- Hello, Database description, Link-state request, Link-state update and Link-state […]
OSPF Packet Types: The Ultimate Guide 2023 Read More »
OSPF Packet Types There are five types of OSPF packets, namely- Hello, Database description, Link-state request, Link-state update and Link-state […]
OSPF Packet Types: The Ultimate Guide 2023 Read More »
Introduction to OSPF DBD IP routing is the most important aspect of networking. There are several types of protocols which
OSPF DBD (Database Descriptor) Packets: OSPF Packet Types Read More »
Introduction to OSPF Network An OSPF network can be divided into sub-domains called areas. A router within an area must
OSPF Area Types: Detailed Explanation Read More »
While forming an adjacency with each other, OSPF speaking neighbors go through several states(OSPF neighbor states) before the routers are
OSPF Neighbor States Explained (OSPF States) Read More »
OSPF LSA Types – OSPF uses LSAs or Link state Advertisements to share information of each network and populate
OSPF LSA Types: The Ultimate Guide Read More »
Introduction to OSPF Routes Before discussing OSPF N1 and N2 routes, it is essential to understand OSPR routes. OSPF external
OSPF N1 and N2 Routes: Configuration Scenario Read More »
Introduction to OSPF External Routes An external route (redistributed from another routing protocol, static route or connected route) will be
OSPF External E1 vs E2 Routes Read More »
Trouble in installing OSPF external routes? There have been situations wherein we see that in OSPF external/NSSA external routes are
OSPF: Unable to Install External Routes Read More »
OSPF Timer Configuration The following OSPF timers can be configured Hello interval OSPF enabled devices send hello packets at a
OSPF Timers Guide (Hello, Dead, Retransmit Intervals) Read More »
OSPF Interview Questions ANSWERS @ – https://ipwithease.com/product/ospf/ Get equipped with the best set of questions asked for OSPF : Why
Top 100 OSPF Interview Questions Read More »
In some cases where Providers deliver MPLS links to customer locations , OSPF may be used as CE-PE routing protocol. PE router connected to the
Understand & Configure OSPF Sham Links Read More »
OSPF Cost – OSPF uses a metric called “Cost” to calculate the metric of the path. The cost is a cumulative
OSPF Cost Calculation Online 2022 Read More »
What is Passive Interface? Passive Interface is used in routing protocols to disable sending updates out from a specific interface.
Configuring OSPF Passive Interface Read More »
Introduction to OSPF Forward Address OSPF External LSA contains a field called Forwarding Address. Based on the forwarding address the
Understanding OSPF Forward Address Read More »
OPSF LSA Type 3 is used for exchanging inter-area routes between different OSPF areas. We may use filter on ABR
OSPF ABR Type 3 LSA Filtering Read More »
Understanding Multi-Access Network In a multi-access Network, OSPF needs to select a DR (Designated Router) and BDR (Backup designated Router). LAN is the
OSPF DR BDR Election: Explained Read More »
As we have already discussed OSPF LSA Types in our last post. In this post we will learn the importance
OSPF Type 4 LSA Importance Read More »
This post will detail the problem condition of OSPF Stuck in EXSTART state due to MTU mismatch between OSPF neighbors.
OSPF Stuck in EXSTART – MTU Mismatch Read More »
There have been situations wherein we see that in OSPF external routes are not able to summarize by any of
OSPF External Route Summarization not happening Read More »
There have been situations wherein we see that in OSPF external routes are not filtered on ABR by any of
OSPF External Route Filtering not happening Read More »
OSPF Configuration We have discussed various configuration scenarios of OSPF in our series of blogs in the past. While configuring
Network Statement Shortcut in OSPF Read More »
OSPF LSA (Link State Advertisement) Each OSPF LSA has its own aging timer that its link state age field carries. Default of 30
Understanding OSPF LSA Data-Structure Read More »
OSPF is one of the key dynamic routing protocols used inside a company’s authoritative domain. OSPF being open standard makes it the favored choice when it
Basic OSPF Configuration of HP Switches Read More »
At times, users may be facing slow response in communication or intermittent drop in network. Frequent SPF Calculation in OSPF
Useful Information on Frequent SPF Calculation in OSPF Read More »