Let's say we have a Cisco 7500 series box with GEIP line card (Gigabit Ethernet Interface Processor), and a 1 Gbps WAN link (layer 1 is DWDM) connected to it.
"The GEIP is based on the versatile interface processor 2-50 (VIP2-50) architecture and hence exhibits similar data throughput characteristics. The GEIP has a maximum aggregate throughput of 400 Mbps and a Layer 3 packet switching performance of about 110 Kpps, full duplex."
What maximum aggregate throughput means, at all? Aggregate because it's full-duplex? (200 Mbps in each direction)?
For example, if 1 Gbps link is utilised 100%, that means 1 GB rx + 1 GB tx (full duplex) = 2 GB of traffic, our 7500 box will just handle 400 Mbps? That's 20% of the paid bandwidth because aggregate link throughput is 2 Gbps and hardware throughput is just 400 Mbps?