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

Question

Options

• AEach side of the peripheral gateway pair (side A and side B) must be configured to point to a local
• BThe peripheral gateway private network may be shared with any other private connections--
• CThe peripheral gateway may use the highly available WAN connection between the sites (visible
• DThe peripheral gateways must be co-located at one side or the other of the Cisco Unified

• A
  4% (1)
• B
  91% (21)
• C
  4% (1)

Explanation

Option B is correct because in Cisco UCCE clustering over the WAN, the Peripheral Gateway (PG) private network interface - used for Side A and Side B to communicate - is permitted to share network infrastructure with other private connections, unlike stricter dedicated-only requirements that apply elsewhere in the UCCE architecture.

Why the distractors are wrong:

• A is wrong because each PG side does not need to point exclusively to a local Unified CM in a fixed way; the routing logic is handled at the UCCE layer, not enforced at the local PG-to-CUCM level as described.
• C is wrong because the PG private interface should not rely on the highly available WAN link visible to other traffic; using the general WAN for the private interface violates design separation principles and introduces dependency on a shared path.
• D is wrong because clustering over the WAN means Side A lives at Site A and Side B lives at Site B - they are distributed across sites, never co-located, which is the entire purpose of the geo-redundant design.

Memory tip: Think "B = Both sides share the private Bus" - the PG private network is the one component flexible enough to share its segment with other private connections, while the WAN-facing and public interfaces must stay separate.

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