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JUNOS OS 10.4 Release Notes
12
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.
IQ2 and IQ2E PIC interfaces report IPv6 statistics for the Layer 2 frame size. For all
other interfaces, the Layer 3 packet size is accounted.
The IPv6 statistics can be viewed by logging in to the individual IQ2 PIC or IQ2E PIC, or
by using the CLI.
Local statistics are not accounted separately.
To display total IPv6 statistics for IQ2 and IQ2E PICs, use the
command.
NOTE: The reported IPv6 statistics do not account for the traffic manager
drops in egress direction or the Packet Forwarding Engine/traffic manager
drops in the ingress direction. Transit statistics are not accounted separately
because the IQ2 and IQ2E PICs cannot differentiate between transit and
local statistics.
show interfaces extensive
Copyright © 2011, Juniper Networks, Inc.
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