The Enterprise Gateway can make connections on a round-robin basis to the URLs
listed in a URL group, thus enabling a high degree of failover to external
servers (for example, Entrust GetAccess, OCSP, SAML PDP, or XKMS).
The Enterprise Gateway attempts to connect to the listed servers according to
the priorities assigned to them. For example, assume there are two High
priority URLs, one Medium URL, and one Low URL configured. Assuming the
Enterprise Gateway can successfully connect to the two High priority URLs, it
alternates requests between these two URLs only in a round-robin fashion.
The other group URLs are not used. However, if both of the High priority
URLs become unavailable, the Enterprise Gateway then tries to use the Medium
priority URL, and only if this fails is the Low priority URL used.
In general, the Enterprise Gateway attempts to round-robin requests over
URLs of the same priority, but uses higher priority URLs before
lower priority ones. When a new URL is added to the group, it is
automatically given the highest priority. You can then change
priorities by selecting the URL, and clicking the Up
and Down buttons.
You can add and edit URLs by selecting the URL from the table,
and clicking on the Add and Edit
buttons.
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