Figure 33: Input Traffic Flow With Rate-Limit Profile On An External Parent; Figure 34: Output Traffic Flow With Rate-Limit Profile On An External Parent; Combined Ipv4 And Ipv6 Service In A Dual Stack Example - Juniper JUNOSE 11.1.X - BROADBAND ACCESS CONFIGURATION GUIDE 6-4-2010 Configuration Manual

JUNOSe 11.1.x Broadband Access Configuration Guide

Combined IPv4 and IPv6 Service in a Dual Stack Example

When you configure a combined IPv4 and IPv6 service in a dual stack, the policies
defined in the interface profile are attached to the appropriate interfaces based on
the type of the interface. For example, all IPv4 policies are attached to the IPv4
interface and all IPv6 policies are attached to the IPv6 interface.
Figure 33 on page 702 shows a topology in which the C-VLAN interface on the customer
edge device is connected to the ingress IPv4 and IPv6 interfaces on the provider
edge or E Series router. A combined IPv4/IPv6 service, which contains a hierarchical
policy and an external parent group with a rate-limit profile that is associated with
the hierarchical policy, is applied at the secondary input stage on the router. The
incoming voice-over-IP classified traffic flows for IPv4 and IPv6 subscribers are
allocated a total of 64 Kbps. The common rate limit cannot drop voice-over-IP packets,
but must limit the total flow (for IPv4 and IPv6 interfaces) to 64 Kbps.
Figure 33: Input Traffic Flow with Rate-Limit Profile on an External Parent Group for a Combined IPv4/IPv6
Service
Ingress IPv4 interface
C-VLAN
Ingress IPv6 interface
Similarly, for traffic flowing from the provider edge device to the C-VLAN interface
for voice-over-IP packets, Figure 34 on page 702 shows how the rate-limit profile in
the external parent group associated with a hierarchical policy parameter applied to
the egress IPv4 and IPv6 interfaces limits the voice-over-IP traffic flowing to the
C-VLAN interface on the customer edge device.
Figure 34: Output Traffic Flow with Rate-Limit Profile on an External Parent Group for a Combined IPv4/IPv6
Service
Rate limiting to 64 Kbps External Parent Group
The following example shows the service macro definition file that creates a
voice-over-IP service for the topology described above.
<# combined_service(inBw, outBw, VBG1, VB6G1, NODE) #>
702
Service Definition Examples
Use the no version to disable the HTTP local server.
See ipv6 http server.
VoIP 64 Kbps
Secondary
input
VoIP 64 Kbps
VoIP 64 Kbps
Output
VoIP 64 Kbps
External Parent Group Rate limiting to 64 Kbps
Egress IPv6 interface
Egress IPv6 interface
C-VLAN