On Fri, Jan 04, 2008 at 02:07:14PM -0500, Jason Lixfeld wrote: > > I believe the uPIMs are dual PCI/PCI-E, and use a switch > >chip to provide additional Ethernet ports with flexible > >mapping. If you don't have a need for hardware (wire speed) > >L3 on your LAN, they're a tempting way to cram Ethernet > >switching functionality into the router box. The J2320 has > >only PCI for PIM connectivity, but 100Mb/s should be no > >problem. > > Would two of the onboard ports each do wirespeed 100Mb, full duplex?
I think so. Our first J-series is 6350, and it was able to deliver about ~600Mbit out/~100 Mbit in, with CPU Idle at ~50%, so, as always, Juniper does what declared in datasheets :) The same datasheet (http://www.juniper.net/products/jseries/dsheet/100206.pdf) quotes 2320 as able to do 400Mbps at IMIX, and that well over your requirement of 100mbit/full duplex: Specification J6350 J4350 J2350 J2320 Maximum Performance and Capacity JUNOS version support JUNOS 8.0 JUNOS 8.0 JUNOS 8.4 JUNOS 8.4 Forwarding performance 2 Gbps+ 1 Gbps+ 750 Mbps+ 600 Mbps+ (large packets) Forwarding performance (IMIX) 1 Gbps 600 Mbps 500 Mbps 400 Mbps > Are the onboards equivalent to PCI or are they equivalent to PCI-E? Again, not sure about 2320, but on 6350 onboard ports are PCI-X: pcib2: <Intel PXH6700 PCI Express to PCI-X bridge> at device 0.0 on pci1 pci2: <PCI bus> on pcib2 pci2: <MARVELL PCI-X Dual GBE Controller> at 2.0 irq 11 pci2: <MARVELL PCI-X Dual GBE Controller> at 3.0 irq 10 _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp