[tech] Network updates - Less port security, more uplink

Matt Johnston matt at ucc.asn.au
Sat Sep 15 19:15:47 WST 2012


Could we power the guild comms room switch/router via PoE
from our UPS?

Matt

On Sat, Sep 15, 2012 at 03:40:54PM +0800, Matt Didcoe wrote:
> Hi,
> 
> Two things:
> 
> 1) Port security has been disabled - due to unreliable numbering of
> the clubroom ports it was causing more headaches than it was worth
> 2) We have a gigabit uplink now!
> 
> The uplink runs from GigabitEthernet1/3/43 on science-dr-01.net to
> Gi0/8 on sesame.ucc via single mode fibre that is patched from Science
> Library via Psychology and CTEC to Cameron Hall. It then continues its
> journey to UCC on the copper cable that we all know and love. For
> those interested in the config, you can always view our switch configs
> online[1]. The config on the science-dr-01 end looks like this:
> 
>     interface GigabitEthernet1/3/43
>     description Guild UCC
>     switchport
>     switchport trunk encapsulation dot1q
>     switchport trunk allowed vlan 11,13,69,100-104,113,514
>     switchport mode trunk
> 
> There's only one link in place at the moment, we'll hopefully fix that
> soon to have a link to science-dr-02 to have redundancy at the UWA
> end.
> 
> [DAA] has already been kind enough to update the wiki page to reflect
> these changes (thanks David!).
> 
> There will still be some downtime on Sunday - that may include the
> aforementioned second link and if nothing else, UWA needs to do an
> upgrade to the IOS running on the distribution points. All going well
> that won't take long.
> 
> The next discussion to have is whether we bother with a small UPS in
> the Cameron Hall comms room to keep sesame online if the power dips -
> there's little point having the fantastic UPS running in our machine
> room if the uplink dies and nobody can get in to investigate what's
> going on (everything upstream of us to the internet is UPS and
> generator backed).
> 
> Cheers,
> [MRD]
> 
> [1] http://cvs.ucc.asn.au/cgi-bin/viewvc.cgi/rancid/ucc/configs/


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