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HomeMicrosoft ExchangeAlternate 2016 – Occasion ID 2080 « MSExchangeGuru.com

Alternate 2016 – Occasion ID 2080 « MSExchangeGuru.com


Should you face a problem for startup of Alternate System Attendant or Alternate AD Topology service, you need to examine the Occasion ID 2080

When the Microsoft Alternate Energetic Listing Topology Service begins up, it queries DNS for SRV data to create an inventory of obtainable and reachable Area Controllers in each the native and distant Energetic Listing websites.

After the preliminary gathering of SRV information, each quarter-hour, MSExchange ADAccess Occasion ID 2080 is logged,
This occasion supplies necessary particulars concerning the Energetic Listing servers out there to Alternate.


From this occasion viewer we will decide:

Server identify: Signifies the identify of the area controller that the remainder of the information within the row corresponds to.

Roles: The second column exhibits whether or not or not the actual server can be utilized as a configuration area controller (column worth C), a website controller (column worth D), or a world catalog server (column worth G) for this explicit Alternate server. A letter on this column signifies that the server can be utilized for the designated perform, and a hyphen (-) signifies that the server can’t be used for that perform. CDG signifies that the server can be utilized for all roles.

Enabled: Both 1 for sure or 0 for no. On this instance, we see 1, so we all know that the server is enabled.

Reachability: The fourth column exhibits whether or not the server is reachable by a Transmission Management Protocol (TCP) connection. These bit flags are related by an OR worth. 0x1 means the server is reachable as a world catalog server (port 3268), 0x2 means the server is reachable as a website controller (port 389), and 0x4 means the server is reachable as a configuration area controller (port 389). In different phrases, if a server is reachable as a world catalog server and as a website controller however not as a configuration area controller, the worth is 3. Within the instance proven above, the worth 7 within the fourth column signifies that the server is reachable as a world catalog server, as a website controller, and as a configuration area controller (0x1 | 0x2 | 0x4 = 0x7).

Synchronized: The fifth column exhibits whether or not the “isSynchronized” flag on the rootDSE of the area controller is about to TRUE. These values use the identical bit flags related by an OR worth because the flags which might be used within the Reachability column. The perfect state of affairs is that the values proven within the fourth and fifth columns match.

GC succesful: The sixth column is a Boolean expression that states whether or not the area controller is a world catalog server. The worth (1) signifies that the server is a world catalog.

PDC: The seventh column is a Boolean expression that states whether or not the area controller is a main area controller for its area. The worth (0) signifies that this isn’t true.

SACL proper: The eighth column is a Boolean expression that states whether or not DSAccess has the right permissions to learn the SACL (a part of the NTSecurityDescriptor) in opposition to that listing service. The worth (1) signifies that that is true.

Vital Knowledge: The ninth column is a Boolean expression that states whether or not DSAccess discovered this Alternate server within the configuration container of the area controller listed in Server identify column. The worth (1) signifies that the server was discovered.

Netlogon Examine: The tenth column states whether or not DSAccess efficiently related to a website controller’s Internet Logon service. This requires using Distant Process Name (RPC), and this name might fail for causes aside from a server that’s down. For instance, firewalls might block this name. So, if there’s a 7 within the tenth column (as is the case right here), it signifies that the Internet Logon service examine was profitable for every function (area controller, configuration area controller, and international catalog).

OS Model: The eleventh column states whether or not the working system of the listed area controller is operating the minimal supported Working System. Alternate 2007 solely makes use of area controllers or international catalog servers which might be operating Home windows 2003 SP1 or later. Alternate 2010 and 2013 help Home windows 2003 SP2 or later, whereas Alternate 2016 helps Home windows 2008 SP2 or later. A Boolean expression of 1 means the area controller glad the working system necessities to be used by DSAccess.

The worth of this information comes from realizing if Alternate can correctly make the most of the Area Controllers out there in your setting, and is subsequently in a position to talk with Energetic Listing. Signs that may trigger you to have a look at this counter embody:

  • Points beginning Alternate providers

  • Intermittent failures in Alternate Administration Shell and the Alternate Admin Console

  • Occasions associated to communication points with Energetic Listing

Should you uncover Area Controllers that Alternate can’t talk with or which have the improper settings, likelihood is that the issue lies with a firewall setting, lack of exclusion from Anti-Virus scanning, some setting overridden by Group Coverage, a Deny safety entry in Entry Management Lists, or different permissions points with the server.

Ratish Nair

Microsoft MVP | Workplace Servers and Companies

Group @MSExchangeGuru

Depart a response, or trackback.



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