We plan on not having to ever do it. but we stacked our priority customers on one /24 so if there were service issues on one of the upstreams or if we unexpectedly saturated one we could force them to use just the one
On Tue, May 3, 2016 at 2:09 PM, John Babineaux <john.babine...@reach4com.com > wrote: > I would advertise all networks on each connection. > > > > You can Prepend to an extent to help prefer traffic coming back on a > certain connection. This cannot be prepended to high or some strip it > off. It broke the internet once by someone putting a really large one….. > > > > If one connection is really bad and the other is really good (to many hops > or very few) you will really only use one most of the time. BGP will send > the traffic out of the connection that is closer. If one of the > connections goes out it will stop advertising on that link to the world. > The working connection will be the only one advertising. > > > > If you are expecting problems I normally filter all traffic to keep things > from flapping on that connection until the work is done. > > ____________________________________ > > John Babineaux > > *System Administrator* > > REACH4 Communications | Website: *www.REACH4Com.com > <http://www.reach4com.com/>* > > Phone: 337-783-3436 x105 | Email: *john.babine...@reach4com.com* > > 927 N Parkerson Ave, Crowley, LA 70526 > > > > > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *That One Guy > /sarcasm > *Sent:* Tuesday, May 03, 2016 1:20 PM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] BGP and OSPF > > > > thank you guys > > > > Now another question, one of our providers is solid, the other..well. What > kind of issues can come up with a basic BGP implementaion (we are taking > the full tables) that will hurt us. Like is there some way that even if we > stop announcing one of the /24 on their circuit theyll aggregate it on > their own into the /22 of the ASN? > > > > You have to remember this is the upstream that moved our bandwidth from an > ethernet port to an SPF one morning without mentioning it to us and without > verifying we had a module, they also send a shitface drunk tech, and for > kicks one day after a failed routing migration, they went ahead and > implemented the changes anyway in the middle of the week, just because they > could. > > > > So any upstream BGP shenanigans I fully expect to see > > > > > > > > On Tue, May 3, 2016 at 1:09 PM, John Babineaux < > john.babine...@reach4com.com> wrote: > > One more thing BGP will pass a Default route to OSPF that will propagate > it so that’s how it will know. > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *John Babineaux > *Sent:* Tuesday, May 03, 2016 1:08 PM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] BGP and OSPF > > > > It’s pretty simple. > > > > You create a connection with your up streams using your ASN and their > ASN. You need ip connectivity to the other router (prob your gateway but > could be another router). And a password if required or preferred. Next > you setup filters to only allow what networks you want to pass upstream and > what you want to accept. Then you add what networks you what to share to > the world statically or to pass them from OSPF. > > > > Keep in mind they will create filters to block anything that you didn’t > tell them that you will pass. If you say x.x.x.x/22 they will only allow > that exact thing. You should only pass nothing lower than a /24 as most > will block it. It’s your choice for full routing tables or just /8 or /16 > etc. You can also get a default route if you don’t get full tables. > > > > Most of the other things I read was for getting things to work when you > have to connect to the other BGP router that’s not directly connected or > your gateway. > > > > ____________________________________ > > John Babineaux > > *System Administrator* > > REACH4 Communications | Website: *www.REACH4Com.com > <http://www.reach4com.com/>* > > Phone: 337-783-3436 x105 | Email: *john.babine...@reach4com.com > <john.babine...@reach4com.com>* > > 927 N Parkerson Ave, Crowley, LA 70526 > > > > > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *That One Guy > /sarcasm > *Sent:* Tuesday, May 03, 2016 12:36 PM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] BGP and OSPF > > > > I understand this, but its still a second new component to something I > already am not competent in > > > > On Tue, May 3, 2016 at 12:25 PM, can...@believewireless.net < > p...@believewireless.net> wrote: > > iBGP and eBGP are the same thing as far as configuration goes. (i) means > you are using BGP internal to your network > > and (e) means you are using BGP to your providers. How you set them up is > exactly the same. > > > > The only different with multi-hop is that you have to set the maximum > number of hops away the BGP peer can be. > > > > On Tue, May 3, 2016 at 1:23 PM, That One Guy /sarcasm < > thatoneguyst...@gmail.com> wrote: > > No, I cant add any topology changes or try to bring in unfamiliar things > like ibgp or mpls/vpls while bringing in something unfamiliar like BGP > unless I run out of interim options > > > > On Tue, May 3, 2016 at 12:13 PM, can...@believewireless.net < > p...@believewireless.net> wrote: > > With Mikrotik, depending on your typology, running iBGP over layer 3 is > probably better than EoIP. In the > > past, I wasn't happy with the way things worked over EoIP. It's now over a > direct, layer 2 connection and > > works 100%. You can run setup multi-hop BGP routing to do it over layer 3 > (single setting in Winbox) but > > it's not as clean. > > > > Could you have the path between the two routers be layer 2 via VPLS or > just using switches? > > > > On Tue, May 3, 2016 at 12:27 PM, That One Guy /sarcasm < > thatoneguyst...@gmail.com> wrote: > > VPLS is not currently present, thats on my "to learn" list > > > > On Tue, May 3, 2016 at 11:26 AM, Jesse DuPont < > jesse.dup...@celeritycorp.net> wrote: > > The two BGP routers do not need to be on the same L2 network for the iBGP > connection. > > > > *Jesse DuPont* > > Network Architect > email: jesse.dup...@celeritycorp.net > Celerity Networks LLC > > Celerity Broadband LLC > Like us! facebook.com/celeritynetworksllc > > Like us! facebook.com/celeritybroadband > > On 5/3/16 10:25 AM, Mike Hammett wrote: > > A BGP speaker would be a router speaking BGP. In this case, most likely > your routers at the edge of your network that connect to your providers. > > Are the routers that are between your two BGP routers capable of running > BGP, resource wise? > > Can you do a VPLS tunnel between your two BGP routers? If not, what about > a VLAN? > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > > *From: *"That One Guy /sarcasm" <thatoneguyst...@gmail.com> > <thatoneguyst...@gmail.com> > *To: *af@afmug.com > *Sent: *Tuesday, May 3, 2016 11:13:36 AM > *Subject: *Re: [AFMUG] BGP and OSPF > > Mike, i said helmet, explain it to me like you would a 10 year old, then > dumb it down to my level from there. > > > > I dont know what a bgp speaker is > > > > On Tue, May 3, 2016 at 11:10 AM, Mike Hammett <af...@ics-il.net> wrote: > > Your OSPF network will just use default routes to get to your BGP speakers. > > Your BGP speakers with full routes will choose the best path. Your BGP > speakers should be connected together, via direct connection, layer 2 > tunnel (VPLS) or via intermediary iBGP speakers. Those iBGP speakers in the > middle of your network will route the correct way, based on BGP. > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > > *From: *"That One Guy /sarcasm" <thatoneguyst...@gmail.com> > *To: *af@afmug.com > *Sent: *Tuesday, May 3, 2016 10:41:52 AM > *Subject: *[AFMUG] BGP and OSPF > > We currently have a /22 with 2 /24 statically routed in each of our > providers. We are moving to BGP. > > > > What Im still unclear on is how my OSPF network is going to decide on the > best path for data to flow externally > > > > can somebody give me the helmet version of how this is accomplished > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > > > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > > > > > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > > > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > > > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
