> [...] in my view it is more apropriate to compare the J4350/J6350 with the ISR series than with the 7200.
OK, so this is a silly point: But what do you have? 1) J-series: GP CPU (x86) with one or more PCI buses. Specifically: - Jx300: P4, 845 chipset, IXP425 (a wannabe network processor) to provide 2 fast Ethernet interfaces (and two serial interfaces), PCI bus. - Jx350: Blazing hot Prescott, 915 chipset, 2 Marvell PCI-E dual GbE chips to provide four gigabit Ethernet interfaces, 6 PCI shared with 2 or 4 PCI-E 1x slots. 2) 7200 (NPE-G1): GP CPU (a BCM1250 using one core) with three built-in GbE MACs and a couple PCI buses. 3) ISR: GP CPU (PowerPC, I believe) with a couple fast/gigabit Ethernet MACs (probably integrated, as on the BCM1250) and one or more PCI buses. Not a whole lot of difference. The 7200 resides in the "I'm a real router, because I route, and cost as much as an automobile" space whereas the ISR is aimed at the office, with "everything including the kitchen sink on a card, and whatever it is, we can do it in IOS" integration. The J-series is somewhere in between, being more of a narrow-purpose routing platform but intentionally limited to DS3 WAN interfaces. The fast P4 and PCI-E actually give the Jx350 an I/O advantage, and you can cram more Ethernet into them than you (or they) can possibly use. And the Jx350s have the internal miniPCI slot for the ISR-like (well, Netscreen-like) encryption card. Now why am I'm getting an image of a router running Asterisk...? At any rate, it's a rather uneven intersection. The J-series will outpower the Ciscos, but lacks the ISR's integration, the 7200's (and even the ISR's) high-end interface selection, and the M-series' regular performance. Peter E. Fry _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
