Juniper Networks M7I - Manual (Page 82)

Gigabit Ethernet Enhanced IQ2 (IQ2E) PIC with SFP (M7i Router)
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• Junos OS Release 9.4 and later Software 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