Scaled Single Site

Company ABC is a large company of about 5,000 people with a single office located in San Francisco, uses sip.companyabc.com as its only SIP domain, and the internal Active Directory domain is companyabc.local. The Edge Servers are named lyncedge1 and lyncedge2 and both have DNS suffixes defined to match the internal domain. The internal Edge pool name is lyncedge.companyabc.com. The overall topology is displayed in Figure 27.22.

Figure 27.22 Single-Scaled Site with DNS and Windows Network Load Balancing

To save costs, DNS load balancing is used because Company ABC does not require Public IM Connectivity or down-level federation. Company ABC uses individual certificates where required. Two Forefront Threat Management Gateway reverse proxy servers are configured with Windows Network Load Balancing. The external URLs are defined as follows:

• Access Edge Service: sip.companyabc.com

• Web Conferencing Edge Service: webconf.companyabc.com

• A/V Edge Service: av.companyabc.com

• External Web Services URL: lyncexternal.companyabc.com

• Simple Meet URL: lyncexternal.companyabc.com/meet

• Simple Dial-In URL: lyncexternal.companyabc.com/dialin

Table 27.11 displays the public and private certificate requirements, whereas Table 27.12 indicates the DNS record requirements.

Table 27.11 Scaled Single Site External Access Server Certificates

Table 27.12 Scaled Single Site Required External DNS Entries