Cisco Cisco Expressway Maintenance Manual
About zones
A zone is a collection of endpoints, either all registered to a single system or located in a certain way such as
via an ENUM or DNS lookup. Zones are used to:
via an ENUM or DNS lookup. Zones are used to:
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control through links whether calls can be made between these zones
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manage the bandwidth of calls
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search for aliases
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You can configure up to 1000 zones. Each zone is configured as one of the following zone types:
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: a connection to a neighbor system of the local Expressway.
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: the local Expressway is a traversal client of the system being connected to, and there is a
firewall between the two.
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: the local Expressway is a traversal server for the system being connected to, and there is
a firewall between the two.
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: the zone contains endpoints discoverable by ENUM lookup.
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: the zone contains endpoints discoverable by DNS lookup.
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: a traversal client or traversal server zone used for Unified
Communications features such as mobile and remote access or Jabber Guest. Note that this zone type
applies to the web interface only; the underlying CLI configuration uses traversal client and traversal server
zone types.
applies to the web interface only; the underlying CLI configuration uses traversal client and traversal server
zone types.
.
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types.
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section for information about including zones as
targets for search rules.
Automatically generated neighbor zones
The Expressway may automatically generate some non-configurable neighbor zones:
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An Expressway-C automatically generates neighbor zones between itself and each discovered Unified CM
node when the system is configured for
node when the system is configured for
.
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An Expressway automatically generates a neighbor zone named "To Microsoft Lync server via B2BUA"
when the
when the
is enabled.
Cisco Expressway Administrator Guide (X8.5)
Page 113 of 394
Zones and neighbors
About zones