And you don't find the 7500 a big jump over the 7000?
What are you trying to do, IP tunnel your data through another backbone?
Avi
Ok, yes they added some memory and it is faster, but they needed to put a
MUCH bigger CPU in that box. It was a jump, but not as big as the one we
all needed. The 7500 was not any new technology, just adding more of the
current. And no we are not tunneling through another backbone, we run our
backbone over Cascade 9000 with clear channel DS3s.
Nathan Stratton CEO, NetRail, Inc. Tracking the future today!
Ok, yes they added some memory and it is faster, but they needed to put a
MUCH bigger CPU in that box. It was a jump, but not as big as the one we
all needed. The 7500 was not any new technology, just adding more of the
current. And no we are not tunneling through another backbone, we run our
backbone over Cascade 9000 with clear channel DS3s.
You must be joking. The RSP1 has a 150Mhz RISC processor in it,
compared to the 25Mhz 68040 that is in the RP1. What are you doing
with your router that requires so much CPU? The only person who I
know who is maxing out a RSP[12] is doing lots of tunnels
cisco will definitely have to continue to improve their routers,
because the 'net is not getting any smaller, but the 7500 series
routers are a substantial improvement over the 7000 series.
Alec
Ok, yes they added some memory and it is faster, but they needed to put a
MUCH bigger CPU in that box. It was a jump, but not as big as the one we
all needed. The 7500 was not any new technology, just adding more of the
current. And no we are not tunneling through another backbone, we run our
backbone over Cascade 9000 with clear channel DS3s.
You should be more specific about _why_ you want a MUCH bigger CPU. IMHO,
the box needs more packet switching capacity (and more backplane
bandwidth), but there's enough CPU there for the OS.
Tony
Recomputing larger route tables, especially OSPF. Tunneling.
Encryption. Acess list filtering. Finer grain accounting (I'd love to see
usage stats for each interface over a day or so right from the router).
And most important to me, not becoming unusuable during a major routing
change.
How many of us have seen a 7513 take 20 seconds to log into and
then 15 seconds to respond to a command during a circuit outage that
forced a major route recomputation? This is when we most need to see
which BGP sessions, OSPF sessions, and interfaces are still up and maybe
even do a 'show logging'.
David Schwartz
Tunneling. Acess list filtering. Finer grain accounting (I'd love to see
usage stats for each interface over a day or so right from the router).
Both of these are switching functions.
Encryption.
This really should be specialized hardware.
Recomputing larger route tables, especially OSPF.
This is interesting. I would be interested to know what a system with
adequate switching and sufficient division between switching and forwarding
will do. I suspect that the CPU is big enough if the switching problem is
solved.
And most important to me, not becoming unusuable during a major routing
change.
Ditto.
Tony
Yes, the cisco needs more backplane, but the CPU cant keep up. Have you
not watched a cisco meltdown when you lose a few NAP connections. Yes if
you do not want to run a lot of BGP, have small OSPF tables, and don't want
to do a lot of filtering then the 7500 is fine.
Nathan Stratton CEO, NetRail, Inc. Tracking the future today!
Yes, the cisco needs more backplane, but the CPU cant keep up. Have you
not watched a cisco meltdown when you lose a few NAP connections. Yes if
you do not want to run a lot of BGP, have small OSPF tables, and don't want
to do a lot of filtering then the 7500 is fine.
The CPU can't keep up because of the caching (which should have died by
now) and because the same CPU is used for switching. I believe that there
is a knob that guarantees that non-switching functionality get a guaranteed
percentage of the CPU. I strongly suggest you try it out.
Get the switching out of the way, and the box would be much happier. Get
the cache out of the way (a software only fix) and the box becomes much
more useful.
Tony