Pretty massive ASH update so it will an interesting IETF talk

  *
Spec is based now on fully debugged implementation
  *
ASH GR added, it resolves inherent lack of scalability of today’s GR 
architecture
  *
Significant improvements in many important metrics at scale both on ASH and ASH 
GR compared to today’s state

— Tony




A new version of Internet-Draft draft-prz-lsr-ash-packets-08.txt has been
successfully submitted by Tony Przygienda and posted to the
IETF repository.

Name:     draft-prz-lsr-ash-packets
Revision: 08
Title:    IS-IS Aggregated SNP Hash Packets
Date:     2026-10-30
Group:    Individual Submission
Pages:    49
URL:      
https://urldefense.com/v3/__https://www.ietf.org/archive/id/draft-prz-lsr-ash-packets-08.txt__;!!NpxR!iz1kRamD93Ru1qMNdcrzPWNiyZpYSpAuKMBFiIxcXY3hpYBxfEe_Mwu1nHSN2u9Z0k9Zd0HigSJ3FgU68ZQ4r3W6Hw6eog$
Status:   
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-prz-lsr-ash-packets/__;!!NpxR!iz1kRamD93Ru1qMNdcrzPWNiyZpYSpAuKMBFiIxcXY3hpYBxfEe_Mwu1nHSN2u9Z0k9Zd0HigSJ3FgU68ZQ4r3X_7VY5TQ$
HTMLized: 
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draft-prz-lsr-ash-packets__;!!NpxR!iz1kRamD93Ru1qMNdcrzPWNiyZpYSpAuKMBFiIxcXY3hpYBxfEe_Mwu1nHSN2u9Z0k9Zd0HigSJ3FgU68ZQ4r3UMh91bIA$
Diff:     
https://urldefense.com/v3/__https://author-tools.ietf.org/iddiff?url2=draft-prz-lsr-ash-packets-08__;!!NpxR!iz1kRamD93Ru1qMNdcrzPWNiyZpYSpAuKMBFiIxcXY3hpYBxfEe_Mwu1nHSN2u9Z0k9Zd0HigSJ3FgU68ZQ4r3VSMPLWBg$

Abstract:

   The document presents an optional new type of database
   synchronization packet called an Aggregated SNP Hash (ASH).  When
   feasible, it compresses traditional SNP exchanges into a dynamic
   Merkle tree-like structure, which speeds up synchronization of large
   databases and adjacency numbers while reducing the load from regular
   CSNP exchanges during normal operation.  Just like CSNPs and PSNPs,
   ASH packets come in two flavors, called Complete ASH (CASH) and
   Partial ASH (PASH).



The IETF Secretariat


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