Juniper-networks M7I Manual de usuario Pagina 82

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Gigabit Ethernet Enhanced IQ2 (IQ2E) PIC with SFP (M7i Router)
g004424
Junos OS Release 9.4 and laterSoftware release
Four Gigabit Ethernet ports
Power requirement: 0.67 A @ 48 V (32 W)
Description
High-performance throughput on each port: speeds up to 1 Gbps
Full-duplex mode
Large maximum transmission units (MTUs) of up to 9192 bytes
Hardware features
Intelligent handling of oversubscribed traffic
Optical diagnostics and related alarms
Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection
(RED), weighted random early detection (WRED)
Drop statistics reported per queue for each of four priority-based drop profiles
Four levels of strict priorities with priority propagation among scheduling levels
Virtual Router Redundancy Protocol (VRRP) support
Hierarchical shaping and hierarchical scheduler
Fine-grained queuing and shaping per logical interface at both ingress and egress
802.1q virtual LANs (VLANs)
VLAN stacking and rewriting
Channels defined by two stacked VLAN tags
Multiple tag protocol identifiers (TPID) support
IP service for nonstandard TPID and stacked VLAN tags
802.1p rewrite per channel
Flexible mapping of channels and scheduler resources at both ingress and egress
16,000 schedulers (2,000 schedulers with 8 queues each or 4,000 schedulers with 4 queues
each)
Scheduler resources dynamically allocated across ports
Flexible Ethernet encapsulation
MAC learning, policing, accounting, and filtering
Software features
Copyright © 2010, Juniper Networks, Inc.82
M7i Multiservice Edge Router PIC Guide
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