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JUNOS OS 10.4 Release Notes
10
over an IPv6 network using softwires. DS-Lite creates the IPv6 softwires that terminate
on the services PIC. Packets coming out of the softwire can then have other services
such as NAT applied on them.
[Services Interface, System Basics and Services Command Reference]
Support for SONET/SDH OC48/STM16 Enhanced IQ (IQE) PIC with SFP (M320,
MX240, MX480, MX960, T640 and T1600 routers) Supports a 4-port SONET/SDH
OC48 Enhanced IQ (IQE) PIC (Type 3) with per data-link connection identifier (DLCI)
queuing. Supported FPCs include T640-FPC3-ES, M320-FPC3-E3, and MX-FPC3.
Class of service (CoS) enables enhanced egress queuing, buffering, and traffic shaping.
CoS supports eight queues per logical interface, a per-unit scheduler, and two shaping
rates: a Committed Information Rate (CIR) and Peak Information Rate (PIR) per
data-link connection identifier (DLCI). Other CoS features include, but are not restricted
to, sharing of excess bandwidth among logical interfaces, five levels of priorities
(including Strict High), ingress behavior aggregate (BA) classification, queue rate-limit
policer, ingress rewrite, egress rewrite, and a forwarding class to queue remapping per
DLCI.
The SONET/SDH OC48/STM 16 PIC supports CoS features similar to those in IQ2E
PICs, in terms of behavior and configuration statements. This PIC supports the following
Layer 2 protocols: PPP, Frame Relay, and Cisco HDLC encapsulations.
For more information, see the PC-4OC48-STM16-IQE-SFP documentation for your
router:
SONET/SDH OC48/STM16 Enhanced IQ (IQE) PIC with SFP (T1600 Router)
SONET/SDH OC48/STM16 Enhanced IQ (IQE) PIC with SFP (T640 Router)
SONET/SDH OC48/STM16 Enhanced IQ (IQE) PIC with SFP (MX Series Routers)
SONET/SDH OC48/STM16 Enhanced IQ (IQE) PIC with SFP (M320 Router)
[PIC Guide, Network Interfaces, Class of Service]
IPv6 statistics from IQ2 and IQ2E PICs on M320 routers with Enhanced III FPCs and
T Series routers—Support statistical accounting for IPv6 traffic traversing the IQ2 and
IQ2E PICs on M320 routers with Enhanced III FPCs and T Series routers.
For IQ2 and IQ2E PIC interfaces, the IPv6 traffic that is reported will be the total statistics
(sum of local and transit IPv6 traffic) in the ingress and egress direction. The IPv6
traffic in the ingress direction will be accounted separately only if the IPv6 family is
configured for the logical interface.
Statistics are maintained for routed IPv6 packets in the egress direction.
Byte and packet counters are maintained in the ingress and egress direction.
Differences in IPv6 statistics for IQ2 interfaces and all other interfaces are as follows:
IQ2 and IQ2E PIC interfaces report the total statistics for the IPv6 traffic. For other
interfaces, the transit statistics are reported.
IQ2 and IQ2E PIC interfaces report all IPv6 traffic received on the logical interface.
For all other interfaces, only the routed traffic is accounted.
Copyright © 2011, Juniper Networks, Inc.
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