■
10-Gigabit Ethernet (with and without VLANs)
■
GRE tunnels
For information about platform support for subscriber interfaces, see “Subscriber
Interfaces Platform Considerations” on page 603.
Dynamic Interfaces and Dynamic Subscriber Interfaces
Dynamic interfaces are created automatically and transparently in response to
external events. For example, the router creates dynamic interfaces when a
lower-layer link such as an ATM or VLAN receives data. The layers of a dynamic
interface are created based on the packets received on the link and can be configured
using profiles, RADIUS, or a combination of the two. Dynamic interfaces are used
to terminate Broadband Residential Access Server (B-RAS) access such as:
Point-to-Point Protocol over Ethernet (PPPoE), Point-to-Point Protocol over ATM
(PPPoA), and Point-to-Point Protocol over Ethernet over ATM (PPPoEoA). A PPP
session acts as logical separation between one subscriber session and the next.
Multiple services using policies and QoS can be applied to the IP interface that is
associated with the PPP session.
An example of a dynamic interface configuration is a PPPoE session running on top
of a Gigabit Ethernet VLAN interface. Figure 16 on page 598 shows an example of the
dynamic interface stack.
Figure 16: Example of a Dynamic Interface Stack
IP
PPPoE minor interface
PPPoE major interface
VLAN subinterface
VLAN major interface
GE physical interface
g017350
You can configure the lower layers of the stack (GE physical interface and VLAN
major interface) either dynamically or statically, and dynamically configure the upper
layers (VLAN subinterface, PPPoE, and IP). An interface is considered dynamic if at
least one of the layers in the interface stack is configured dynamically.
The router creates dynamic subscriber interfaces (DSIs) on demand, in response to
external events, such as when a Dynamic Host Configuration Protocol (DHCP) event
occurs or when the router detects a packet. DSIs function in a manner similar to
dynamic interfaces. However, DSIs have a more specific application than dynamic
interfaces. You use DSIs when there are no PPPoE, PPPoA, or PPPoEoA sessions to
provide separation between layers and when subscriber management is required.
598
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Subscriber Interfaces Overview
JUNOSe 11.0.x Broadband Access Configuration Guide
Содержание JUNOSE 11.0.X MULTICAST ROUTING
Страница 6: ...vi...
Страница 28: ...xxviii Table of Contents JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 36: ...xxxvi List of Tables JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 42: ...2 Managing Remote Access JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 204: ...164 Managing RADIUS and TACACS JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 274: ...234 CLI Commands Used to Modify RADIUS Attributes JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 292: ...252 Monitoring RADIUS Relay Server JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 336: ...296 RADIUS Client Terminate Reasons JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 368: ...328 Managing L2TP JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 408: ...368 Configuring the Weighted Load Balancing Method JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 444: ...404 PPP Accounting Statistics JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 492: ...452 Monitoring Operational Status within the Current VR Context JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 494: ...454 Managing DHCP JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 510: ...470 DHCP Local Server Configuration Tasks JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 528: ...488 Configuring the Router to Work with the SRC Software JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 556: ...516 Configuring DHCP Relay Proxy JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 616: ...576 Managing the Subscriber Environment JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 632: ...592 Subscriber Management Configuration Examples JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 636: ...596 Monitoring Active IP Subscribers Created by Subscriber Management JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 672: ...632 Monitoring Active IP Subscribers Created by Subscriber Management JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 674: ...634 Managing Subscriber Services JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 767: ...Part 7 Index Index on page 729 Index 727...
Страница 768: ...728 Index JUNOSe 11 0 x Broadband Access Configuration Guide...