See Also
Configure internal and external Domain Name System (DNS) records to support the new system. For the side-by-side migration, your clients have to authenticate to the new Office Communications Server 2007 R2 pool and then be redirected from there to the Live Communications Server pool.
The SRV record can point only to a single pool. In a mixed
environment the supported configuration is an Office Communications
Server 2007 R2 Director (that is, a pool) with Live Communications
Server and Office Communications Server 2007 R2 pools. This means
that during migration you configure DNS records to point to the
Office Communications Server 2007 R2 Director. After the Office
Communications Server 2007 R2 pool or director is in place, update
the SRV record to the new Office Communications Server 2007 R2
Director. You need to make the appropriate changes to the
_sipinternaltls._tcp DNS record. For details, see
You need to prepare a complete set of DNS records to support the
Office Communications Server 2007 R2 Edge Server. The new system
features require additional IP addresses and requisite DNS records
for A/V, Media Relay, Access Edge, and reverse proxy (Web
Components). For details, see
To create and configure DNS
records for new servers
- For each Standard Edition server and Enterprise pool, create
the records as explained in Create and Verify DNS Records for Your
Server or Pool.
- For each Edge Server or Edge Server array, create the records
as explained in DNS Requirements for External User Access.
 Note: |
|---|
| Do not make any changes to existing DNS records. After you deprecate the existing servers, you will remove these records. |