North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Film at 11:00
First, Happy New Year. 2'th, sorry for my mistake - I just meant 45K as Cisco 4500... Through it have not changed issue seriously -:) 3'nd.. Do you mean VIP2 idea is worst then SSE idea? > > Hmm, it's not news for us. 45K can hold core routing only as > inter-back-bone router, not more. > > But why, why this crasy CISCO could not predict future when > they designed 45K routers? It was not difficult for them > develop this box to cary 64 or 128MB RAM. > > > Looks like the 45k mark was reached: > > > > Folks with 7000's and SSE's should start monitoring their memory > > utilization via "show sse summary". > > There's a couple of comments here: > > First, 45k is not the limit. More like 60k. You'll pardon me for being > cautious. > > The limitation is not DRAM. It's the 64k words of SRAM that the SSE uses > for its high speed forwarding table. You don't want to pay for 64Mbytes of > SRAM. ;-) > > When cisco's engineers designed the SSE, we knew very well what was > happening. We expected to be given the opportunity to produce subsequent > hardware which implemented the SSE in an ASIC. If, by that time, CIDR > hadn't killed off the exponential growth, we would have expanded the > address space. Unfortunately, cisco management decided that the SSE ASIC > should not be implemented (a mistake which, to my knowledge, cisco has not > corrected). Thus, the 7500 exists without an SSE. > > Tony > --- Aleksei Roudnev, Network Operations Center, Relcom, Moscow (+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 239-10-10, N 13729 (pager) (+7 095) 196-72-12 (Support), (+7 095) 194-33-28 (Fax) - - - - - - - - - - - - - - - - -
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