Integrated Convergence Services
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DSCP marking for RTP packets generated by SRX Series Integrated
Convergence Services
—This feature is supported on SRX210 and SRX240 devices
that have high memory, power over Ethernet capability, and media gateway
capability.
Configure DSCP marking to set the desired DSCP bits for RTP packets generated
by SRX Series Integrated Convergence Services.
DSCP bits are the 6-bit bitmap in the IP header used by devices to decide the
forwarding priority of packet routing. When the DSCP bits of RTP packets
generated by Integrated Convergence Services are configured, the downstream
device can then classify the RTP packets and direct them to a higher priority
queue in order to achieve better voice quality when packet traffic is congested.
Juniper Networks devices provide classification, priority queuing, and other kinds
of CoS configuration under the Class-of-Service configuration hierarchy.
Note that the Integrated Convergence Services DSCP marking feature marks only
RTP packets of calls that it terminates, which include calls to peer call servers
and to peer proxy servers that provide SIP trunks. If a call is not terminated by
Integrated Convergence Services, then DSCP marking does not apply.
To configure the DSCP marking bitmap for calls terminated by Integrated
Convergence Services and the address of the peer call server or peer proxy server
to which these calls are routed, use the
media-policy
statement in the
[edit services
converged-services]
hierarchy level.
set services convergence-service service-class < name > dscp < bitmap >
set services convergence-service service-class media-policy < name > term <
term-name > from peer-address [< addresses >]
set services convergence-service service-class media-policy < name > term then
service-class < name >
Interfaces and Routing
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DOCSIS Mini-PIM interface
—DOCSIS Mini-PIM is currently supported with
Comcast ISP service.
Data over Cable Service Interface Specification (DOCSIS) defines the
communications and operation support interface requirements for a
data-over-cable system. It is used by cable operators to provide Internet access
over their existing cable infrastructure for both residential and business
customers. DOCSIS 3.0 is the latest Interface standard allowing channel bonding
to deliver speeds higher than 100 Mbps throughput in either direction, far
surpassing other WAN technologies such as T1/E1, ADSL2+, ISDN, and DS3.
DOCSIS network architecture includes a cable modem on SRX Series Services
Gateways with a DOCSIS Mini-Physical Interface Module (Mini-PIM) located at
customer premises, and a Cable Modem Termination System (CMTS) located at
the head-end or data center locations. Standards-based DOCSIS 3.0 Mini-PIM is
interoperable with CMTS equipment. The DOCSIS Mini-PIM provides backward
compatibility with CMTS equipment based on the following standards:
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DOCSIS 2.0
New Features in JUNOS Release 10.1 for SRX Series Services Gateways and J Series Services Routers
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New Features in JUNOS Release 10.1 for SRX Series Services Gateways and J Series Services Routers
