Packet Flow On Acx Series Routers - Juniper ACX500 Hardware Manual

Figure 3: ACX500 Outdoor Router Interface Port Mapping
1 GPS LED
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2 FPC 0, PIC 0: 0/0/0–0/0/2 (3x1GE SFP)
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Packet Flow on ACX Series Routers

The class-of-service (CoS) architecture for ACX Series routers is in concept similar to that for MX Series
routers. The general architecture for ACX Series routers is shown in
Figure 4: ACX Series Router Packet Forwarding and Data Flow
Based on the model, ACX Series routers contain a built-in Routing Engine and Packet Forwarding Engine
and can contain both T1/E1 and Gigabit Ethernet Ports.
The Packet Forwarding Engine has one or two "pseudo" Flexible PIC Concentrators. Because there is no
switching fabric, the single Packet Forwarding Engine takes care of both ingress and egress packet
forwarding.
3 FPC 0, PIC 1: 0/1/0–0/1/2 (3x1GE RJ-45
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with PoE+ support)
Figure 4 on page 11.
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