Why do you think 6500/7600 doesn't have the required performance ? 30
Mpps Sup 2 with fabric-enabled line-cards can perform incredibly well...
Having FlexWAN and other non-fabric line-cards will slow down to 15
Mpps, which is usually enough. VLAN L3 interfaces are required only on
CatOS (which is today required by POS modules, unfortunately), but not
on Supervisor IOS.
Rubens Kuhl Jr.
Those are advertised numbers, best-case assuming flows that
can be distributed away from the MSFC. My experience with
Cisco in the past is they rarely get close to advertised
numbers, YMMV. Not that even 30Mpps (15Gb/s) is adequate for
a GigE aggregation device, and 15Mpps (7Gb/s) is not enough.
Even then, other vendors are advertising on the order of
50-90Mpps in the same size chassises, and at least in my lab
they are achieving that. For the same price or less than
6500, lots less than 7600. And larger chassises are avaiable
doing on the order of 150Mpps.
In my experience, service providers that are doing lots of
L3 GigE are not using 6500's or other Cisco products, at
least for GigE services. 6500 is still strong in the L2 GigE
space. With 10GigE, Cisco is even less appealing. SONET is a
different story, of course.
Pete.
So, just curious if there's a large crowd going towards 6500
"native" mode (using Supervisor IOS instead of CatOS
"hybrid" dual-headed monster).
I've heard of a few enterprise- and metro-area networks
migrating from a 7500+GSR platform to 6500's, but none are
running 6500 native mode.
Seems like native mode is pretty new, maybe 18 months old
now. Not many IOS versions to choose from, but plenty of
bug-fix releases (5 since Aug '01). Curious whether anyone
is testing or operational with it, and what your experience
has been.
Pete.
So, just curious if there's a large crowd going towards 6500
"native" mode (using Supervisor IOS instead of CatOS
"hybrid" dual-headed monster).
Probably not because of POS modules lack of support in Supervisor IOS.
People doing DFC and SLB are required to run Supervisor IOS; people that doesn't like the vlan/port metaphor tend to run Sup IOS.
I've heard of a few enterprise- and metro-area networks
migrating from a 7500+GSR platform to 6500's, but none are
running 6500 native mode.Seems like native mode is pretty new, maybe 18 months old
now. Not many IOS versions to choose from, but plenty of
bug-fix releases (5 since Aug '01). Curious whether anyone
The Sup-IOS releases are usually paired with CatOS or MSFC IOS upgrades, correcting similar bugs and adding similar funcionality. Very few bugs were SupIOS-related, as far as can I tell from the release notes (which doesn't always include all that have changed).
is testing or operational with it, and what your experience
has been.
Most of the times we hit a CatOS bug we also tried the current SupIOS release on lab, and the same bug was also present... it would probably make no difference to run either of them, unless you use something exclusive to SupIOS that would have its own bugs.
Rubens Kuhl Jr.