Hi Brian,
Thanks for being the first among many, many admins, hopefully :) to
provide feedback. Much appreciated. Admins, keep 'em coming ;^)
Brandorr wrote:
> Questions
>
> 1. Please provide a one-line or two-line overview of your
> networking environment.
> Cisco shop, with F5 load balancers.
>
> 2. Do you frequently change or upgrade your network interface cards?
> No
>
> 3. Do you modify existing NIC configuration or adjust the tunables?
> If yes, how frequently do you perform these tasks?
> When we discover unexpected performance issues with new product.
>
> 4. What tools or commands do you use to administer NICs? Are you
> satisfied with the existing tools? ifconfig netstat. It depends on
> what we are using them for. I would like to be able to use ifconfig to
> list interfaces that haven't been configured/probed yet.
>
> 5. What do you like about the current methods to administer NICs?
> Please be as specific as possible. The only thing is that I know them,
> they work well from the commandline and are scriptable.
>
> 6. What do you dislike about the current methods to administer
> NICs? If you are dealing with something other than IP the interfaces
> are completely different.
>
> 7. What are the typical NIC tunables or properties that you monitor
> most of the time?
>
> (I haven't personally been responsible for these settings in 5
> years, but this is our most current standard).
> # TCP tunable value
> #
> $NDD_SET_TCP tcp_max_buf 4194304
> $NDD_SET_TCP tcp_cwnd_max 2097152
> $NDD_SET_TCP tcp_xmit_hiwat 65536
> $NDD_SET_TCP tcp_recv_hiwat 65536
> # $NDD_SET_TCP tcp_xmit_hiwat 400000
> # $NDD_SET_TCP tcp_recv_hiwat 400000
> $NDD_SET_TCP tcp_conn_req_max_q 16384
> $NDD_SET_TCP tcp_conn_req_max_q0 16384
> $NDD_SET_TCP tcp_keepalive_interval 30000
> $NDD_SET_TCP tcp_time_wait_interval 60000
> $NDD_SET_TCP tcp_fin_wait_2_flush_interval 135000
> $NDD_SET_TCP tcp_strong_iss 2
> #
> # UDP tunable value
> #
> $NDD_SET_UDP udp_max_buf 4194304
> $NDD_SET_UDP udp_xmit_hiwat 65536
> $NDD_SET_UDP udp_recv_hiwat 65536
>
> As far as reading is concerned we will use it generally only when we
> are troubleshooting. (At least that's the case for me).
>
> 8. Do you have scripts that run at boot time which set ndd parameters?
> Yes
>
> 9. Do you write custom drivers?
>
> No
>
> If yes, please provide any feedback about the following proposal by
> the Brussels project:
>
>
> The Brussels project aims to provide a simpler and cleaner
> interface for GLDv3 drivers by using the dladm command. When GLDv3
> drivers register with the GLDv3 framework, these drivers drivers will
> provide function pointers for setting() and getting() properties.
> Subsequently, the dladm command can be used to send the appropriate
> system calls to trigger the registered set() and get() functions.
>
> Overall, I like the idea of a standard driver interface model for
> networking cards.
>
> 10. Do you use Link Aggregation ("Trunking")?
> Yes
> 11. Do you use WiFi?
> No, but Laptop users will need this.
> 12. Have you used the dladm as a configuration tool, such as dladm
> set-linkprop?
> No
> If yes, what do you like and dislike about this interface?
> 13. Are you interested in a GUI-based version of the dladm command?
> Not personally. It is probably a good idea though.
> If yes, what features would you like to be included in the
> GUI-based version?
> 14. Should the GUI-based tool be capable of tweaking all of the
> available NIC properties?
>
> Yes, especially if it is hooked into a good tooltips/help
> section. (Best option to have a basic and advanced modes of operation.
>
> If no, what selected properties should be configurable by the
> GUI-based tool, while the rest by a command line syntax?
>
> 15. To configure the MTU property, would you prefer to select from a
> list of set values that is provided by the GUI, or would you prefer
> typing the value in an input field?
>
> No opinion. (If you can't decide you could always use a pulldown list
> with another option).
>
> If you favor selecting from a list of given values, what MTU
> values do you suggest in addition to 1500 (for default) and 9000 (for
> jumbo frames support)?
>
> On 10/16/07, Raoul Carag <Raoul.Carag at sun.com> wrote:
>> We set up a documentation page for the Brussels project. An overview of
>> the project is found here:
>>
>> http://www.opensolaris.org/os/project/brussels/
>>
>> To provide a user-friendly tool for configuring NIC drivers, we need to
>> hear from you. Your feedback and comments would help the team know how
>> to develop the tool to respond to admin needs .
>>
>> We put up a questionnaire and would appreciate if you would spare some
>> moments to answer them and send your comments to us. To access the
>> questionnaire, go to:
>>
>> http://www.opensolaris.org/os/project/brussels/Documentation/survey/
>>
>> A draft of administrative procedures resulting from the implementation
>> of Brussels is also available for review here:
>>
>> http://www.opensolaris.org/os/project/brussels/Documentation/procs/
>>
>> Feedback about this draft is also welcome.
>>
>> Thanks in advance.
>>
>> _______________________________________________
>> sysadmin-discuss mailing list
>> sysadmin-discuss at opensolaris.org
>> http://mail.opensolaris.org/mailman/listinfo/sysadmin-discuss
>>
>
>
