Cisco Cisco Expressway Maintenance Manual
External XMPP federation
This section describes how to configure your Expressway to support external XMPP federation.
Deploying Expressway for external XMPP federation
External XMPP federation enables users registered to Unified CM IM & Presence to communicate via the
Expressway-E with users from a different XMPP deployment.
Expressway-E with users from a different XMPP deployment.
The following diagram shows how XMPP messages are routed from your on-premises IM & Presence server
via the Expressway-C and Expressway-E Collaboration Edge solution to the federated XMPP server. It also
shows the ports and connections that are used as the messages traverse DMZ firewalls.
via the Expressway-C and Expressway-E Collaboration Edge solution to the federated XMPP server. It also
shows the ports and connections that are used as the messages traverse DMZ firewalls.
Supported systems
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Expressway-E supports XMPP federation with:
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Cisco Unified Communications Manager IM and Presence Service 9.1.1 or later
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Cisco Webex Connect Release 6.x
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other XMPP standards-compliant servers
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Cisco Jabber 9.7 or later
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Expressway-E does not support XMPP address translation (of email addresses, for example). External
systems must federate with the Jabber IDs that are native to Unified CM IM & Presence.
You can make the user's Unified CM IM&P Jabber ID resemble the user's email address, so that the
federated partner can use email addresses for federation, by:
systems must federate with the Jabber IDs that are native to Unified CM IM & Presence.
You can make the user's Unified CM IM&P Jabber ID resemble the user's email address, so that the
federated partner can use email addresses for federation, by:
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setting the Unified CM LDAP attribute for User ID to be the user's sAMAccountName
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setting the Unified CM IM&P presence domain to be the same as the email domain
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Simultaneous internal federation managed by Unified CM IM&P and external federation managed by
Expressway is not supported. If only internal federation is required then you must use Interdomain
Federation on Unified CM IM&P. The available federation deployment configuration options are:
Expressway is not supported. If only internal federation is required then you must use Interdomain
Federation on Unified CM IM&P. The available federation deployment configuration options are:
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External federation only (managed by Expressway)
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Internal federation only (managed by Unified CM IM&P)
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Internal and external federation managed by Unified CM IM&P, but requires configuring your firewall to
allow inbound connections
allow inbound connections
For information about configuring your system for external XMPP federation, see:
Cisco Expressway Administrator Guide (X8.5)
Page 80 of 394
Unified Communications
External XMPP federation