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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Cisco Router best for full BGP on a sub 5K bidget 7500 7200 or other vendor ?
In an effort to keep from getting too vendor specific on nanog I'll respond to you offline. My initial response to Alex was aimed at giving him something else to consider from a "gotcha" perspective along with his other requirements. Rodney On Mon, Apr 26, 2004 at 03:50:45PM -0400, [email protected] wrote: > On Mon, 26 Apr 2004, Rodney Dunn wrote: > > > That's the most common deployment mistake I > > see made with the 75xx nowadays. People want > > to move to dCEF to get added feature capability > > or either run a new feature that requires dCEF and they > > don't consider the extra load on the VIP CPU's that > > is required. > > Does dCEF use much more CPU on the VIPs or just memory (to store the > fowarwarding table on the VIP)? My experience has been that a 7500 with > RSP4's and VIP2-50's (with dCEF) will handle much more packet forwarding > than a 7206VXR NPE300...but with full BGP routes, you need at least 64mb > (preferably 128mb) on the VIPs or you can't use dCEF. Not using dCEF > largely defeats the purpose of using a 7500, doesn't it? > > ---------------------------------------------------------------------- > Jon Lewis *[email protected]*| I route > Senior Network Engineer | therefore you are > Atlantic Net | > _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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