Juniper JUNOSE 10.0.X PHYSICAL LAYER, Руководство по настройке

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ES2 10G Uplink LM Combination
With a 100 Gbps fabric configuration, the E320 router can accommodate up to 2
combinations of ES2 10G Uplink LMs and ES2-S2 10GE PR IOAs. You must install a
combination in either of the turbo slots (slot 2 or slot 4). The 100 Gbps allocates
10 Gbps of overall bandwidth to each of these slots.
With a 120 Gbps fabric configuration, the E120 router can accommodate up to 6
combinations of ES2 10G Uplink LMs and ES2-S2 10GE PR IOAs. You can install a
combination in any of the line module slots, each of which are allocated 10 Gbps of
overall bandwidth.
With a 320 Gbps fabric configuration, the E320 router can accommodate up to 12
combinations of ES2 10G Uplink LMs and ES2-S2 10GE PR IOAs. You can install a
combination in any of the line module slots, each of which are allocated 10 Gbps of
overall bandwidth.
Uplink Operation
The ES2 10G Uplink LM and ES2-S2 10GE PR IOA combination provides an uplink
connection from the core network to the edge rather than traditional broadband
access services such as PPPoE, transparent bridging, and subscriber interfaces.
The combination can receive and transmit full duplex line rate of 10 GB (10 GB at
the ingress and 10 GB at the egress). The IOA can also support 9.6 Kbps jumbo
packets at both the ingress and egress.
Multicast
The ES2 10G Uplink LM can receive multicast traffic, including all multicast control
protocols. The ES2 10G Uplink LM can also transmit multicast control protocol frames
and multicast data frames to perform multicast egress elaboration.
L2TP
An E-series router can be configured as either an L2TP access concentrator (LAC) or
an L2TP network server (LNS). The ES2 10G Uplink LM and ES2-S2 10GE PR IOA
combination supports an E-series router configured as a LAC only for traffic to or
from an LNS. The ES2 10G Uplink LM and ES2-S2 10GE PR IOA combination supports
both sides of the L2TP LNS function (LAC facing and core facing).
Flow Control and Policy
The ES2 10G Uplink LM and ES2-S2 10GE PR IOA combination does not support
quality of service (QoS) functionality that is available on other ASIC-based Ethernet
modules.
Although the ES2 10G Uplink LM does not support scheduling and shaping for egress
traffic, the LM does account for the traffic class of packets through the fabric so that
high priority packets are scheduled for transmission to the line module before lower
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10-Gigabit Ethernet IOAs
JUNOSe 10.0.x Physical Layer Configuration Guide