nanog mailing list archives

Re: 7206 VXR NPE-G1 throughput


From: Nick Hilliard <nick () foobar org>
Date: Mon, 10 Feb 2014 17:58:16 +0000

On 10/02/2014 15:30, Remco Bressers wrote:
This depends on multiple variables. The 7200 is a single-CPU platform
where CPU can go sky-high when using features like ACL's, QoS, IPv6 and
you name it.. Also, changing from IOS 12.4 to 15 increased our CPU usage
with another 10%+. Stick to the bare minimum of features you really need
and you will be fine.

in fact, the npe-g1 uses a BCM1250 which is a dual CPU unit but vanilla IOS
is not able to use the second CPU for packet forwarding.  Unsubstantiated
rumour claimed that modular IOS (QNX kernel) could push about 1.6x the
throughput of vanilla IOS, as it was smp capable.  Pity it was never released.

Nick



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