In the Cisco Unified Contact Center Enterprise solution with clustering over the WAN, which statement is true about the Cisco Unified Communications Manager Peripheral Gateway duplex pair?

Question

Options

• AEach side of the Peripheral Gateway pair (side A and side B) must be configured to point to a
• BThe PG private network may be shared with any other private connections--PGs or Call
• CThe PG may use the highly available WAN connection between the sites (visible network) for all
• DThe PGs must be co-located at one side or the other of the Cisco Unified Communications

• A
  3% (1)
• B
  77% (24)
• C
  6% (2)
• D
  13% (4)

Explanation

Option B is correct because in UCCE clustering over the WAN (CoW), the private network used by a Peripheral Gateway duplex pair for inter-side communication is not exclusive - it can be shared with other PG pairs or Call Servers on the same private link, reducing infrastructure complexity without violating design rules.

Option A is wrong because each PG side does not need to point to a specific matching side in the way described - the duplex relationship is handled by the UCCE software, not by manually pairing IP addresses per side. Option C is wrong because the PG private communication must use the dedicated private network, not the visible WAN/HA WAN link, which is reserved for call signaling and data visible to the broader network. Option D is wrong because CoW is specifically designed so that PG sides can be split across sites (Side A at Site 1, Side B at Site 2) - co-locating both sides would defeat the purpose of geographic redundancy.

Memory tip: Think "Private = Pooled" - the PG's private network is a shared resource, not a dedicated one-to-one pipe, so multiple PG pairs and Call Servers can all ride the same private link together.

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