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RFC 7868, "Cisco's Enhanced Interior Gateway Routing Protocol (EIGRP)", May 2016

Source of RFC: INDEPENDENT
See Also: RFC 7868 w/ inline errata

Errata ID: 5952
Status: Verified
Type: Editorial
Publication Format(s) : TEXT

Reported By: Christopher Hart
Date Reported: 2019-12-30
Verifier Name: Adrian Farrel
Date Verified: 2020-01-19

Section 6.5 says:

   RS-Flag (0x04): The Restart flag is set in the HELLO and the UPDATE
      packets during the restart period.  The router looks at the RS-
      Flag to detect if a neighbor is restarting.  From the restarting
      routers perspective, if a neighboring router detects the RS-Flag
      set, it will maintain the adjacency, and will set the RS-Flag in
      its UPDATE packet to indicated it is doing a soft restart.

It should say:

   RS-Flag (0x04): The Restart flag is set in the HELLO and the UPDATE
      packets during the restart period.  A router looks at the RS-
      Flag to detect if a neighbor is restarting.  From the restarting
      router's perspective, if a neighboring router detects the RS-
      Flag is set, the neighboring router will maintain the adjacency
      with the restarting router. The restarting router will set the
      RS-Flag in its UPDATE packet to indicate it is performing a soft
      restart.

Notes:

Cleaning up the grammar for the RS-Flag portion of Section 6.5. The grammar used in the original text can be ambiguously interpreted as to whether the restarting router initially sets the RS-Flag in its Update packet, or the neighboring router initially sets the RS-Flag in its Update packet.

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