February 2012 - skunkworks - Skunkworks Site

Re: [Skunkworks] [EANOG] STP convergence & MST
by John Gitau 27 Feb '12

27 Feb '12

-Disable vtp. Prune manually. 60 is not a large number. Just for comparison for one segment of our network we have well over 7000 Vlans and yes stp/vtp are disabled. We planned it that way. -Even if you choose to go L3 end to end. I wouldn't advocate for a total stp shutdown as has been advised unless you are very sure no one can attach a random switch or other bpdu generating device. You can start planning the transition though. Sent from my iPad On 27 Feb 2012, at 09:41, jim ndegwa <ndegwajim(a)yahoo.com> wrote: > Unless it was already mentioned, don't forget setup vlan trunk protocol (VTP) to better manage your VLAN spread across the multiple switches. Setup core-switch as server and access as clients. Prune vlans accordingly. Note VTP revisions when adding new switches or you might wipe out the core configuration if it happens to be lower than the newly added switch > > http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a008… > > > > From: John Gitau <jgitau(a)gmail.com> > To: Skunkworks Mailing List <skunkworks(a)lists.my.co.ke> > Cc: East AfricaNetwork Operators Group <eanog(a)lists.my.co.ke>; Skunkworks Mailing List <skunkworks(a)lists.my.co.ke> > Sent: Sunday, February 26, 2012 8:50 PM > Subject: Re: [EANOG] [Skunkworks] STP convergence & MST > > Well still not enough to go with but. > > With 60 vlans and I assume hsrp at the core running on a 6513: > > I'd create two hsrp groups, one for odd and the other for even numbered vlans. This makes your traffic 'balanced' .... > > Next i make a guess here that you have multiple switches each with multiple links to the core. To ensure no link goes to waste, make it such that the root ports for odd and even numbers don't use the same path. And only your 6513 can be the root bridge. Again I make an assumption. > > Tune your stp appropriately. Use the guides below for guidance. Or leave the convergence defaults. However ensure the access switches never become root bridges. > > http://blog.ine.com/wp-content/uploads/2010/04/understanding-stp-rstp-conve… > http://blog.ine.com/2009/09/07/rstp-and-fast-convergence/ > http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0… > > While asking questions like this, it helps to throw in a topology, what you want to achieve, what you've tried, etc.....people otherwise second guess your requirements. It's like a request for quotation vs a request for information. The latter brings you marketing answers/guys. > > Sent from my iPad > > On 26 Feb 2012, at 19:52, TheMburu George <themburu(a)gmail.com> wrote: > >> Hahaha nope its not my home network but an entire cooperate network with around 60 vlans. Core-switch is Cisco 6513 so its pretty serious network. >> >> If i chose PST, which of the earlier commands leads to faster convergence? >> >> Note: I also have HSRP setup. >> >> ./TheMburu >> >> >> On Sun, Feb 26, 2012 at 8:22 AM, John Gitau <jgitau(a)gmail.com> wrote: >> Well he specifically asked about two types of stp. I believe he has enough to go with now if thats the only issue he had. for all we know this was for his home network:--) >> >> If he needs more granulated answers he'll have to give more info:-) >> >> Sent from my iPad >> >> On 25 Feb 2012, at 23:10, "Stan Ngure" <stanngure(a)gmail.com> wrote: >> >> > Guys, >> > >> > Mburu did not mention the size of the network, to gauge it to the effort he wants to apply. >> > >> > -----Original Message----- >> > From: David Kariuki <kariukidw(a)gmail.com> >> > Sender: skunkworks-bounces(a)lists.my.co.ke >> > Date: Fri, 24 Feb 2012 16:42:38 >> > To: East Africa Network Operators Group<eanog(a)lists.my.co.ke> >> > Reply-To: Skunkworks Mailing List <skunkworks(a)lists.my.co.ke> >> > Cc: Skunkworks Mailing List<skunkworks(a)lists.my.co.ke> >> > Subject: Re: [Skunkworks] [EANOG] STP convergence & MST >> > >> > _______________________________________________ >> > Skunkworks mailing list >> > Skunkworks(a)lists.my.co.ke >> > ------------ >> > List info, subscribe/unsubscribe >> > http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks >> > ------------ >> > >> > Skunkworks Rules >> > http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 >> > ------------ >> > Other services @ http://my.co.ke >> > >> > _______________________________________________ >> > Skunkworks mailing list >> > Skunkworks(a)lists.my.co.ke >> > ------------ >> > List info, subscribe/unsubscribe >> > http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks >> > ------------ >> > >> > Skunkworks Rules >> > http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 >> > ------------ >> > Other services @ http://my.co.ke >> _______________________________________________ >> Skunkworks mailing list >> Skunkworks(a)lists.my.co.ke >> ------------ >> List info, subscribe/unsubscribe >> http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks >> ------------ >> >> Skunkworks Rules >> http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 >> ------------ >> Other services @ http://my.co.ke >> >> >> >> -- >> Conservatism is the adherence to the old tried against the new untried. >> _______________________________________________ >> Skunkworks mailing list >> Skunkworks(a)lists.my.co.ke >> ------------ >> List info, subscribe/unsubscribe >> http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks >> ------------ >> >> Skunkworks Rules >> http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 >> ------------ >> Other services @ http://my.co.ke > > _______________________________________________ > eanog mailing list > eanog(a)lists.my.co.ke > http://lists.my.co.ke/cgi-bin/mailman/listinfo/eanog > > > _______________________________________________ > eanog mailing list > eanog(a)lists.my.co.ke > http://lists.my.co.ke/cgi-bin/mailman/listinfo/eanog

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Re: [Skunkworks] Safaricom IN blocking alphanumeric sender's, smses.
by Josh Handley 27 Feb '12

27 Feb '12

The article makes it sound like only international providers are blocked from using alphanumerics but the local provider we are using also has the same issue (although maybe they are going through an international provider as well). Are there any local Bulk SMS providers that are still able to send with an alphanumeric or do we have to become a PRSP to be able to do it? Josh On 27/02/12 10:11 AM, skunkworks-request(a)lists.my.co.ke wrote: > Message: 2 > Date: Mon, 27 Feb 2012 10:05:34 +0300 > From: Bernard Mwagiru<bmwagiru(a)gmail.com> > To: Skunkworks Mailing List<skunkworks(a)lists.my.co.ke> > Subject: Re: [Skunkworks] Safaricom IN blocking alphanumeric sender's > smses. > Message-ID: > <CAAV5Tb6mUK2rg23e9i96zo5_SZubvxZUhkv-NdPy=rJepg79Dg(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > In related news: Safaricom-Blocking-International-Bulk-SMS > http://goo.gl/ULplQ > > *?We have simply tightened our internal controls to ensure total compliance > with inter-connect agreements for the exchange of voice and SMS > traffic.? Nzioka > Waita, Corporate Affairs Director, Safaricom* > > > ./bernard

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Fwd: GALAXY TAB 7" 4 SALE
by Leonard Kore 27 Feb '12

27 Feb '12

---------- Forwarded message ---------- From: Leonard Kore <leonardkore(a)gmail.com> Date: Fri, Feb 24, 2012 at 2:21 PM Subject: Re: [Skunkworks] GALAXY TAB 7" 4 SALE To: Brian Munyao Longwe <blongwe(a)gmail.com> Hi guys its a Galaxy Tab 7 inch Plus GT P6200 3G + WI FI and it bored me coz I have an ipad On Fri, Feb 24, 2012 at 1:46 PM, Brian Munyao Longwe <blongwe(a)gmail.com>wrote: > Hi, > > Is this the Galax Tab 7 inch old version or the newer Galaxy Tab 7 inch > Plus? > > Regards, > > Brian > > On Fri, Feb 24, 2012 at 10:56 AM, Leonard Kore <leonardkore(a)gmail.com> > wrote: > > Hi guys, > > recently got a galaxy tab 7 inch 2 weeks ago and already bored of it. > > Selling price 40k still brand new with warranty, accessories and stickers > > etc > > > > contact me off list if u r a serious buyer. > > > > -- > > Leonard Kore > > > > > > > > _______________________________________________ > > Skunkworks mailing list > > Skunkworks(a)lists.my.co.ke > > ------------ > > List info, subscribe/unsubscribe > > http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks > > ------------ > > > > Skunkworks Rules > > http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 > > ------------ > > Other services @ http://my.co.ke > > > > -- > Brian Munyao Longwe > e-mail: blongwe(a)gmail.com > cell: +254715964281 > blog : http://zinjlog.blogspot.com > meta-blog: http://mashilingi.blogspot.com > > "Give us clear vision that we may know where to stand and what to > stand for, because unless we stand for something, we shall fall for > anything." > -- Leonard Kore @iLabAfrica-Strathmore University -- Leonard Kore @iLabAfrica-Strathmore University

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STP convergence & MST
by TheMburu George 27 Feb '12

27 Feb '12

Hey skunks I need to implement fastest convergence on VLAN's. One way is implementing PVST (Per VLAN STP) and have preset root bridges, now the question which among the following facilitate faster root bridge election and hence quicker convergence *#spanning-tree vlan **vlan_no.** priority **value** #spanning-tree vlan **vlan_no.** root **{primary |secondary}* The second way is implement Multiple Spanning Tree (MST), though I havent implemented it and dont know the shortcoming but seems faster and lighter than PVST. Question is how is the experience to those who have implemented it and speed of convergence and fault tolerance ./TheMburu -- Conservatism is the adherence to the old tried against the new untried.

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OT - Solar powered Garden lights
by Eric Mugo 27 Feb '12

27 Feb '12

Hi All, Sometime last year i attended a Home Expo event and was astonished at the prices of most of the stuff #was looking for Solar powered Garden lights#.... No wonder the USD went crazy on Kenya since we are simply importing everything.... Anyway....i was wondering whether we have some bright campus dudes/ladies who can come up with soft Garden lights.I do not want to connect them to the House mains (KPLC) but would rather leave it charging during the day and battery powered at night. If you could throw in a motion sensor so that the lights remain off and only switches on when triggered by movement id appreciate. Contact me offlist. Eric

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interesting blog on technology ...check this out
by veronica nderitu 27 Feb '12

27 Feb '12

<http://www.cloud6live.com/>hi all. came across this new blog... http://www.cloud6live.com/

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Looking for Wikipedia DVDs
by Patrick Wayodi 26 Feb '12

26 Feb '12

Hi, I'm looking for DVDs of an offline version of Wikipedia. I'm willing to pay. You can send them to me through post office.

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I am teaching a class
by matere lusitche 26 Feb '12

26 Feb '12

Hi Guys can anybody apply to be a member of skunkworks. I will be talking to a media class and wanted to tell them about how this forum has been of help to me. What's the procedure of getting into the forum these days is it by invite?

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KNOWLEDGE MANAGEMENT CAFES
by george muchori 26 Feb '12

26 Feb '12

Hi guys, do we have these cafes in Kenya and if yes where can i find them? regards, George Muchori.

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Long live Wazi Wifi
by Paul Kevin 26 Feb '12

26 Feb '12

So recently wazi wifi has been worse and slower than my phones 2G network. Trying to get some help from the Wazi team has proven pointless and I guess its time to buy a modem and go back to pay for what you use services. Wazi wifi was good, until it started disconnecting every 5 minutes. I dont have the time and patience for a network that doesnt suit my needs and costs me more

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