Tags » [OSPF]

Routing policies and redistribution in JUNOS

Following up with JUNOS routing, I would like to show you a couple of things that will be useful for you routing experience with the JUNOS platform, and it's about routing policies and changing the some default router behaviours. 1,112 more words

OSPF network types

Here I am listing the operations of those network types

Broadcast, multi-access network – single mode of operation
Point-to-point network – single mode of operation… 211 more words


Operation of OSPF protocol


- OSPF has three tables

  • Neighbor table – List of all neighbors.
  • Topology table – Has the entire map of the whole area.
  • Routing table – Best path to the destination.
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Basics of OSPF protocol

OSPF is a network layer protocol that uses protocol number 89.

For better understanding, I will explain briefly about the parameters used in OSPF in divisions… 896 more words


OSPF Foundation / LSA

DR (Designated Router) must be chosen in a network else you would have multiple pairs of routers with multiple instances of routing tables.

DR & BDR will form but others will remain as DROther stopping at 2WAY state. 137 more words



I’ve been wanting to lab this feature up and thought this might be the break I’ve been looking for. Feature should be supported in IOS XE 3S (at least that’s what Feature Nav says) but it doesn’t appear that’s the case, at least not with the ISO version. 94 more words


What is Open Systems Shortest Path, OSPF?

Open Systems Shortest Path (OSPF) is link-state protocol that uses the Djikstra Algorithm to determine a shortest path tree.  The OSPF algorithm

Link State Advertisements (LSA) 15 more words