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Copyright © 2011, Juniper Networks, Inc.
New Features in Junos OS Release 10.4 for M Series, MX Series, and T Series Routers
The following VSAs (vendor ID 4874) are used for service accounting:
Attribute
Number
Attribute Name
26-69
Service-Statistics
26-83
Acct-Service-Session
26-140
Service-Interim-Acct-Interval
[Subscriber Access]
Subscriber secure policy traffic mirroring supported for L2TP sessions on the LAC
(MX Series routers)—The L2TP access concentrator (LAC) implementation supports
RADIUS-initiated per-subscriber traffic mirroring. Both subscriber ingress traffic (from
the subscriber into the tunnel) and subscriber egress traffic (from the tunnel to the
subscriber) is mirrored at the (subscriber-facing) ingress interface on the LAC. The
ingress traffic is mirrored after PPPoE decapsulation and before L2TP encapsulation.
The egress traffic is mirrored after L2TP decapsulation. The mirrored packet includes
the complete HDLC frame sent to the LNS.
[Subscriber Access]
Support for static and dynamic CoS on L2TP LAC subscriber interfaces (M120, M320,
and MX Series routers)—Enables you to configure static and dynamic CoS for L2TP
access concentrator (LAC) tunnels that transport PPP subscribers at Layer 2 and Layer
3 of the network.
IP and L2TP headers are added to packets arriving at the LAC from a subscriber before
being tunneled to the L2TP network server (LNS). Classifiers and rewrite-rules enable
you to properly transfer the type-of-service (ToS) value or the 802.1p value from the
inner IP header to the outer IP header of the L2TP packet.
For ingress tunnels, you configure fixed or behavior aggregate (BA) classifiers for the
PPP interface or an underlying VLAN interface at Layer 2. You can configure Layer 3
classifiers for a family of PPP interfaces. Layer 2 and Layer 3 classifiers can co-exist
for a PPP subscriber.
For example, to classify incoming packets for a PPP subscriber, include the
statement at the
type classifier-name
hierarchy level or at the
logical-unit-number]
interfaces pp0 unit logical-unit-number]
On egress tunnels, you configure rewrite rules to set the ToS or 802.1p value of the
outer header. For example, to configure a rewrite-rule definition for an interface with
Description
Value
Enable or disable
0 = disable
statistics for the
1 = enable time statistics
service.
2 = enable time and
volume statistics
Name of the
string: service-name
service.
Amount of time
range = 600–86400
between interim
seconds
accounting
0 = disabled
updates for this
service.
[edit class-of-service interfaces pp0 unit
[edit dynamic-profiles class-of-service
hierarchy level.
classifier
31
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