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I remember sometime back there were firewall throughput questions
concerning what happens if a firewall box is used with high speed links
on both sides. In my case I'm thinking 4 or 16 mb token ring on one
side and similar links on the other or TR to Ethernet or Ethernet to
Ethernet. The numbers I've seen are measured with a T1 on one side and
an Ethernet on the other. In this case the T1 is the throttle and you
expect a certain traffic rate. But it was unknown back then what
happens in the other cases mentioned above. No I expect that there will
be a delay more sigificant than that of a router. A firewall isn't a
router; it's a firewall. A great many firewall functions happen at
layer 7 while strict routing is a layer 3 issue. So there's more
software to plow through generally speaking in a firewall. And I'm
sure the numbers will depend on just how much firewalling is going on.
Has anybody done any measurements of what happens when a firewal is
used between two high speed links? I'd be very interested in numbers or
pointers to same. Thanks.
Chris J.
NU
[recloak]
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Chris Johnson Internet: johnson @
nuhub .
dac .
neu .
edu
Assistant Director, Systems BITNET: defunct
Division of Academic Computing Voice: 617.373.3300
Northeastern University, 39RI FAX: 617.373.8600
360 Huntington Ave. 50% of all doctors graduated
Boston, MA. U.S.A. 02115 in the lower half of the class
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