CIsco 7206VXR w/NPE-G1 Question

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That is of course, as opposed to Juniper, which is truly line-rate at any
interface, with any services, at any composition of traffic.

No. While I was at my former employer, we took our edge
ACL into the Juniper POC lab, and verified that an M40
stuffed full of OC48 linecards could sustain just over
85% of line rate with our edge ACL applied before sustaining
packet loss; the POC lab engineers double checked and
verified that there was nothing wrong with the test, that
was simply the most the IPII processors could handle with
that particularly hairy ACL.

There's no such thing as a perfect router--there will always
be conditions under which any given device has suboptimal
(read "sub-line-rate") performance. The trick is establishing
what traffic patterns show up in *your* network, and purchase
the appropriate hardware for _your_ traffic patterns.

-alex

Matt

2

No. While I was at my former employer, we took our edge
ACL into the Juniper POC lab, and verified that an M40
stuffed full of OC48 linecards could sustain just over
85% of line rate with our edge ACL applied before sustaining
packet loss; the POC lab engineers double checked and
verified that there was nothing wrong with the test, that
was simply the most the IPII processors could handle with
that particularly hairy ACL.

Was that in the limits of the FPC ? It seems it does, just checking out.
Was this a test with smallest possible packets ? Do you remember aggregate
pps being routed ? It seems you could hit some of the real IP2 pps limits
with ACLs, which is definitively not 40 Mpps. In one test I saw it hitted
top at 12.5 Mpps, but it may be due to hitting FPC limits. Other people
tests showed something in the 20-25 Mpps range.

Rubens