On (2014-05-30 11:54 -0700), joel jaeggli wrote: > the bandwidth is symmetric... the forwarding lookup is only done on the > ingress linecard.
(Memory) bandwidth is unidir, single Trio has maybe 70Gbps of memory bandwidth (it depends on cell alignment, it can be 80Gbps and in artificial scenario could be lot less than 70Gbps). So if your ingress is 40Gbps you have only 30Gbps of egress. Lookup performance is about 50-55Mpps, linerate in MPC would require 60Mpps, so bit shy of that. But again, would really only surface in artificial scenario. On MX80 and MX104 it might plausibly be issue in some esoteric but non-artificial scenario, as you have more 10 ports than 4 on Trio. > larger microcode size > > which impacts the availability of some relatively esoteric features... No. E model has better oscillator for timing shizzle and double the DDR3 memory on LU chip, which is not going to affect anything as far as I know, as it was upgraded to support now de-funct mobilenext product. -- ++ytti _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp

