- Written by Rabi Narayan
- Posted on 1月 19, 2026
- Updated on 1月 20, 2026
- 811 Views
Link State IGPs such as IS-IS depend upon having a consistent LSDB across all the Intermediate Systems (ISs or nodes) in the network in order to provide correct forwarding of data packets. When topology change occurs due to various network events, new/updated LSPs are propagated network-wide. The speed of propagation is key for a faster network convergence.