Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Field
Description
Usage tips
Use CRLs
Controls whether Certificate Revocation Lists (CRLs) are
used to perform certificate revocation checking.
used to perform certificate revocation checking.
CRLs can be used if the certificate
does not support OCSP.
does not support OCSP.
CRLs can be loaded manually onto
the VCS, downloaded automatically
from preconfigured URIs (see
the VCS, downloaded automatically
from preconfigured URIs (see
), or
downloaded automatically from a
CRL distribution point (CDP) URI
contained in the X.509 certificate.
CRL distribution point (CDP) URI
contained in the X.509 certificate.
Allow CRL
downloads
from CDPs
downloads
from CDPs
Controls whether the download of CRLs from the CDP URIs
contained in X.509 certificates is allowed.
contained in X.509 certificates is allowed.
Fallback
behavior
behavior
Controls the revocation checking behavior if the revocation
status cannot be established, for example if the revocation
source cannot be contacted.
status cannot be established, for example if the revocation
source cannot be contacted.
Treat as revoked: treat the certificate as revoked (and thus
do not allow the TLS connection).
do not allow the TLS connection).
Treat as not revoked: treat the certificate as not revoked.
Default: Treat as not revoked
Treat as not revoked ensures that
your system continues to operate in
a normal manner if the revocation
source cannot be contacted,
however it does potentially mean
that revoked certificates will be
accepted.
a normal manner if the revocation
source cannot be contacted,
however it does potentially mean
that revoked certificates will be
accepted.
Registration Controls
This section contains the registration controls for standard and outbound SIP registrations. The configurable options
are:
are:
Field
Description
Usage tips
Standard
registration
refresh
strategy
registration
refresh
strategy
The method used to generate the SIP registration expiry
period (the period within which a SIP endpoint must re-
register to prevent its registration expiring) for standard
registrations.
period (the period within which a SIP endpoint must re-
register to prevent its registration expiring) for standard
registrations.
Maximum: uses the lesser of the configured Maximum
refresh value and the value requested in the registration.
refresh value and the value requested in the registration.
Variable: generates a random value between the
configured Minimum refresh value and the lesser of the
configured Maximum refresh value and the value
requested in the registration.
configured Maximum refresh value and the value
requested in the registration.
The default is Maximum.
The Maximum setting uses the
requested value providing it is within
the specified maximum and
minimum ranges.
requested value providing it is within
the specified maximum and
minimum ranges.
The Variable setting calculates a
random refresh period for each
registration (and re-registration)
request in an attempt to continually
spread the load. The VCS never
returns a value higher than what
was requested.
random refresh period for each
registration (and re-registration)
request in an attempt to continually
spread the load. The VCS never
returns a value higher than what
was requested.
This applies only to endpoints
registered with the VCS. It does not
apply to endpoints whose
registrations are proxied through the
VCS.
registered with the VCS. It does not
apply to endpoints whose
registrations are proxied through the
VCS.
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Cisco TelePresence Video Communication Server Administrator Guide
Protocols