Provisioning Transcode Codec Session Capacities

When you use setup entitlements to set the capacity for a transcode codec, the system may or may not require a reboot.

• When a transcode codec is licensed with a license key, a capacity change requires a reboot to take effect.
• When a transcode codec is not licensed with a license key, a capacity change takes effect without a reboot.

Virtual Network Function (VNF) Caveats

The following functional caveats apply to VNF deployments of this release:

• The OVM server 3.4.2 does not support the virtual back-end required for para-virtualized (PV) networking. VIF emulated interfaces are supported but have lower performance. Consider using SR-IOV or PCI-passthru as an alternative if higher performance is required.
• Default levels for scalability and are set to ensure appropriate throttling based on platform capacity factors such as hypervisor type, number and role of CPU cores, available host memory and I/O bandwidth. In some scenarios, the defaults may not be appropriate and throttling may occur at lower or higher call rates than expected. Please contact Oracle Technical Support for details on how to override the default throttles, if required.
• To support HA failover, MAC anti-spoofing must be disabled for media interfaces on the host hypervisor/vSwitch/SR-IOV_PF.
• When operating as a VNF deployed in an HA configuration, the OCSBC does not support IPSec.
• Virtual LAN (VLAN) tagging is not supported when deploying the OCESBC over the Hyper-V platform.

Transcoding - general

Only SIP signaling is supported with transcoding.

Codec policies can be used only with realms associated with SIP signaling.

T.38 Fax Transcoding

T.38 Fax transcoding is available for G711 only at 10ms, 20ms, 30ms ptimes.

Pooled Transcoding for Fax is unsupported.

Pooled Transcoding

DTMF Interworking

RFC 2833 interworking with H.323 is unsupported.

SIP-KPML to RFC2833 conversion is not supported for transcoded calls.

H.323 Signaling Support

If you run H.323 and SIP traffic in system, configure each protocol (SIP, H.323) in a separate realm.

Media Hairpinning

Media hairpining is not supported for hair-pin and spiral call flows involving both H.323 and SIP protocols.

Lawful Intercept

Lawful Intercept is supported for the X123 and PCOM protocols only. PCOM support for LI is not available on virtual platforms.

IKEv2 interfaces are supported only for X2 and X3 traffic.

Fragmented Ping Support

The Oracle Communications Session Border Controller does not respond to inbound fragmented ping packets.

Physical Interface RTC Support

After changing any Physical Interface configuration, you must reboot the system reboot.

SRTP Caveats

The ARIA cipher is not supported by virtual machine deployments.

Packet Trace

• VNF deployments do not support the packet-trace remote command.
• The Acme Packet 3900 does not support the packet-trace remote command.
• Output from the packet-trace local command on hardware platforms running this software version may display invalid MAC addresses for signaling packets.

Trace Tools

RTCP Generation

Video flows are not supported in realms where RTCP generation is enabled.

SCTP

SCTP Multihoming does not support dynamic and static ACLs configured in a realm.

SCTP must be configured to use different ports than configured TCP ports for a given interface.

Real Time Configuration Issues

In this version of the OCSBC, the realm-config element's access-control-trust-level parameter is not real-time configurable.

Workaround: Make changes to this parameter within a maintenance window.

Virtual Network Function (VNF) Limitations

Oracle Communications Session Border Controller (OCSBC) functions not available in VNF deployments of this release include:

• Native transcoding for codecs other than G.711, G.729 and AMR.

  Workaround: For all other codecs, configure your environment and system for pooled transcoding.

• FAX Detection
• RTCP generation for G.711 or G.729
• RTCP detection
• TSCF functionality
• LI-PCOM
• H.323 signaling or H.323-SIP inter-working
• Remote Packet Trace
• ARIA Cipher
• IPSec functionality not available in VNF deployments of this release:
  • IKEv1
  • Authentication header (AH)
  • The AES-XCBC authentication algorithm
  • Dynamic reconfiguration of security-associations
  • Hitless HA failover of IPSec connections.

High Availability

Acme Packet 3900 IPSec Limitations

The following IPSec functions are not available for the Acme Packet 3900 in this release.

Dead Peer Detection

When running on the Acme Packet 6100, the OCSBC's dead peer detection does not work with IPv4.

Offer-Less-Invite Call Flow

Call flows that have "Offer-less-invite using PRACK interworking, Transcoding, and dynamic payload" are not supported in this release.

Fragmented SIP Message Limitations

Fragmented SIP messages are intercepted but not forwarded to the X2 server if IKEv1/IPsec tunnels are configured as transport mode.

Workaround: Configure IKEv1/IPsec tunnels as "tunnel mode".

IPv6 On X1 Interface

IPv6 does not work on X1 interface.