Re: [Netpass-users] Network Arch Opinions/Questions

[Don R. <don...@em...>]

..quick questions about the nic described below, with all the VLANs  
on it: does each vlan have it own subnet to it?? and does each subnet  
have an IP address on the NP server nic??

The reason I'm asking -- looks like there may be an issue on our core  
that we cannot assign a 2 vlans to the same subnet (won't let us put  
the same subnet router on 2 vlans), which is causing us some problems  
at the moment -- but assigning an address for each subnet to the NP  
server nic would solve this problem....thought, opinions?

Thanks,
Don

On Jun 21, 2005, at 1:46 PM, Jeff Murphy wrote:

>
>
>> I think we're leaning towards central servers, so the two VLANs from
>> each building would be directed back to the core, and the core ports
>> for the NP servers would be tagged with _all_ the VLANs, 10 in this
>> case. Things get a little fuzzy here -- those 10 VLANs would then
>> also have to be defined on each server, so that they could be members
>> of each VLAN, correct?
>>
>
> if you use 2 servers you'll either need to manually split the  
> config in
> half or use a load balancer (e.g. www.linuxvirtualservers.org)
>
> in either case, you can use interfacecfg.pl to spit out the  
> appropriate
> ifconfig commands to bring up all of the interfaces.
>
> then your server(s) will have 5-10 interfaces (depending on what  
> sort of
> LB design you go with).
>
> we might need to examine interfacecfg.pl if you are doing a non-LVS
> deployment, as we've written it with the expectation that you are  
> doing
> an LVS deployment.
>
> you eventually wind up with something like:
>
> % ip link
> 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
> 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
> 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
> 4: sit0: <NOARP> mtu 1480 qdisc noop
> 5: eth1.813: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> 6: eth1.13: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> 7: eth1.812: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> 8: eth1.12: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
>
>
>
> our production NP servers have ~53 interfaces (2 physical) configured.
>
> jeff
>
>
>
>
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