[c-nsp] Cisco's new 4500-X 10G Aggregation Switches

[Jared Mauch]

On Feb 16, 2012, at 5:13 AM, Skeeve Stevens wrote:

> Seems crap to me.

I'm sure they could just store the IPv4 addresses in the wider TCAM entries and you would see comparable performance.  I'm sure some engineer has already thought of this.

I think it's fair to say longer lookups would be slower.  The people who obsess over 40-byte packets, et al are a bit extreme these days as well IMHO.  There's a lot of tradeoffs made in platform design, expecting a 128-bit lookup to take longer than a 32-bit is a reasonable expectation, perhaps until the platforms are 128-bit vs 64-bit native :)

- Jared