Re: Questions regarding replication connections
- From: "Jorge de Almeida Pinto [MVP - DS]" <SubstituteThisWithMyFullNameSeparatedByDots@xxxxxxxxx>
- Date: Fri, 22 Dec 2006 20:09:53 +0100
However, I haven't seen any dialog box in any view anywhere in AD Sites
and
Services that allows me to bind a site link or transport or anything to a
particular network interface or dial-up connection
very correct! you cannot associate a site link with a WAN link
the site link cost is of no use when two locations have multiple WAN links,
one T1 and one dial-up. AD cannot decide between the two and it does not
care which one is used, as long one is used! The choice between the use of
T1 and dial-up in this case should be made at network level
the site link cost is interesting when multiple NETWORK PATHS (each
represented by its own site link in AD) exist between locations
--
Cheers,
(HOPEFULLY THIS INFORMATION HELPS YOU!)
# Jorge de Almeida Pinto # MVP Windows Server - Directory Services
BLOG (WEB-BASED)--> http://blogs.dirteam.com/blogs/jorge/default.aspx
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* This posting is provided "AS IS" with no warranties and confers no rights!
* Always test before implementing!
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"Steven Davidson" <StevenDavidson@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:E8D63C00-5EF6-48C5-A1FC-ECCA77762667@xxxxxxxxxxxxxxxx
I'll add on another question (as my confusion grows)....
I don't really understand the significance of the site link cost. In the
training material, they kept referring to scenarios where, for instance,
you
have a high-speed connection such as a T1 and a dial-up link in case the
T1
fails. Then they'll suggest that you have a site link for the T1
connection
that is set to a lower cost than the site link for the dial-up connection.
However, I haven't seen any dialog box in any view anywhere in AD Sites
and
Services that allows me to bind a site link or transport or anything to a
particular network interface or dial-up connection. So, what's that all
about? Even if I did have a site (SiteA) connected by a high speed T1 or
a
dial-up connection (in case the T1 fails) and even if I did create two
separate site links to replicate between SiteA and SiteB, for example, and
even if I did assign the two site links different costs, how would the
replication mechanisms now to send data over the T1 vs. the dial-up if the
site links aren't bound to a particular interface? Or am I just missing
something completely obvious here?
"Steven Davidson" wrote:
I'm interested in understanding more about how the KCC generates
replication
connections. In my test enviornment, I created 2 sites in addition to
the
default site (NOTE: I renamed the default site from
"Default-First-Site-Name"
to "Datacenter"). The two additional sites are MPLSBranchOffice and
NYCBranchOffice. I created 2 subnets. I assigned subnet 192.168.18.0/24
to
NYCBranchOffice and I assigned 192.168.21.0/24 to MPLSBranchOffice. All
sites are configured to use the DEFAULTIPSITELINK. Initially, I had two
domain controllers in the Datacenter site. DC2 and DC5. I then created
DC3
and, based on the IP I assigned to it, it was automatically placed in the
NYCBranchOffice site. Without any intervention on my part, a site
connection
was created by the KCC between DC5 (located in the Datacenter site) and
DC3
(in the NYCBranchOffice site). I then moved the DC5 server to the
MPLSBranchOffice site (and subsequently reconfigured networking on DC5
and
physically connected it to the MPLS Branch Office network). The KCC
started
adding and removing site connections. But now I'm a bit confused by the
current topology. Looking at the current topology from within AD Sites
and
Services, I see the following:
DC2 replicates to DC5
DC3 replicates to DC5
DC3 replicates to DC2
What I don't see is anything replicating to DC3 (yet DC3 does get updates
from changes made to other domain controllers)
Also, when I initially had DC5 in the Datacenter site, the auto-generated
connection to DC2 (which was in the same site) was using RPC. When I
moved
DC5 to the MPLSBranchOffice site, the KCC kept the transport at RPC
instead
of changing it to IP. Is that normal? I expected different behavior.
So I
guess the two points I'd like insight into are a) How does DC3 get
updates
when nothing replicates to it? and b) Is the KCC supposed to
automatically
configure repliation connections between DCs in all sites once I manually
create sites or am I, as an administrator, supposed to manually create
the
replication connections too?
Thanks,
Steven
.
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