OSPF Type4 Message / LSU Packet (Link State Update)

Similar to LSR, LSU (Link State Update) is the response/reply to LSR.

Each Link State Update packet carries a collection of link state advertisements one hop further from its origin.

 

Consider the simple below topology with two Routers:

LSU’s are generated in response to the LSR’s.

It is obvious from the below detail, spend some time with it to understand it fully:

 

Written by 

Waqas Karim is a seasoned Network Expert … Geek. He is the founder of ATech. ATech was started for learning & sharing. Over time the platform has grown to include other resources which continue to attract fellow networkers. Today it sees upward trend of a hundred thousand visitors per month, scattered all over the globe. His specialty is networking, but his interest & expertise spans from traditional IT to Network Security including Programming, Virtualization, Service Provider & so on... no matter the badge on the box. He is CCIE Certified (CCIE#56732) in addition to below badges: Telecom Engineer (BE) + CCIE-RS (CCIE#56732) + Huawei Certified (HW#706632) + MBA Microsoft Certified MCITP, MCSE#109*26, CCNP-Sec, CCNP-SP, CCNA-DC, CompTIA Security+, Nokia NRS-I, JNCIA, ITIL Certified (ITIL#*6373), CEH (Certified Ethical Hacker).

avatar
4 Comment threads
3 Thread replies
0 Followers
 
Most reacted comment
Hottest comment thread
5 Comment authors
Waqas KarimAkshita SaiSumit JainSai junReyansh Arjun Recent comment authors
  Subscribe  
newest oldest most voted
Notify of
Akshita Sai
Guest
Akshita Sai

Is LSU different from DBD? OR both are same?

Sumit Jain
Guest
Sumit Jain

Can you plzzz shed some light on OSPF Router ID … ? Is it the Router ID or OSPF ID?

Sai jun
Guest
Sai jun

Good Post… liking it now.

Reyansh Arjun
Guest
Reyansh Arjun

Nice Post!!