Cisco Cisco IPCC Web Option Guida Alla Progettazione

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Cisco Unified Contact Center Enterprise 7.0, 7.1, and 7.2 SRND

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Chapter 2 Deployment Models

IPT: Clustering Over the WAN

guidelines in the chapter on

Bandwidth Provisioning and QoS Considerations, page 12-1

, for more

details), these WAN links can be converged with other corporate traffic as long as the private and
public traffic are not carried over the same link. The Unified CM ICCS traffic should preferably be
carried over the highly available network used by the Unified ICM public communications.

Figure 2-8

Highly Available WAN Network for the Unified ICM Public Traffic

Figure 2-9

Separate WAN link for Unified ICM Private Traffic

•

It is possible to deploy Unified CCE clustering over the WAN with two links if the following rules
are applied:

–

During normal operations, the Unified ICM public and private traffic must be carried over
separate links; they must not be carried over the same link.

–

The Unified CM traffic should preferably be carried over the Unified ICM public link in normal
conditions (see

Figure 2-10

–

Two routers are required on each side of the WAN for redundancy and should be connected to
different WAN links.

Figure 2-10

Network Architecture Under Normal Operations

•

In case of network failure, the WAN link that carries the Unified ICM public traffic should be
configured to fail-over to the other link that carries the Unified ICM private traffic (see

Figure 2-11

The Unified CM ICCS traffic should also be allowed to fail-over to the private link. This prevents
situations where a CTI Manager that connects to the active Agent PG loses WAN connection to the

ICM public + ICCS

WAN

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WAN

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ICM private

ICM public + ICCS

WAN

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ICM private