> Ramcharan, Vijay A wrote: > > All, > > I'm just looking for confirmation that GRE on the 3750G is done in > > software with the resulting low throughput (~20Mbps with iperf across > > GRE tunnel on 3750G). All testing and reading that I've done > indicates > > that the hardware on the 3750 is not especially built for > > "router-specific" features like GRE. A "show int stats" shows that > all > > packets on the tunnel interface in a pair of 3750G switches is > process > > switched. The same command on a 3845 shows the majority of the > traffic > > is hardware switched/forwarded. > > > > 3845 is still a software platform (with hardware crypto), but the CPU > is > much faster. 3750 routes in hardware, however, its CPU is much slower > if > you start doing stuff not supported in hardware. >
And I'm told GRE is not officially supported on the 3750. Even though it works, it isn't recommended, because, as you've found out, it is process switched only. -- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
