OpenBGP
Hi! I need some help with an configuration of OpenBGP. I have four routers that is connected with p-2-p links between each other: R1 - R2 - R3 - R4 I've only seen networks announced to the nearest router that it is connected to. For example: R1 see R2 but R1 cannot see R3 etc.. There is no other router deamon running on the servers (ie no ospfd). I think this must be some basic error that I have made. The configuration files is very basic ie: no filter rules at all and there is an allow from any. All the routers have an uniq router id. All routers announce an uniq network that the others don't have. -- //fredan
Re: OpenBGP
mendagen den 28 februari 2011 15.15.21 skrev Claudio Jeker: On Mon, Feb 28, 2011 at 03:08:05PM +0100, fredrik danerklint wrote: Hi! I need some help with an configuration of OpenBGP. I have four routers that is connected with p-2-p links between each other: R1 - R2 - R3 - R4 I've only seen networks announced to the nearest router that it is connected to. For example: R1 see R2 but R1 cannot see R3 etc.. There is no other router deamon running on the servers (ie no ospfd). I think this must be some basic error that I have made. The configuration files is very basic ie: no filter rules at all and there is an allow from any. All the routers have an uniq router id. All routers announce an uniq network that the others don't have. If you use the same AS on all 4 routers then you need to full mesh the four routers (iBGP sessions). Another option would be to use the route-reflector support. This is how BGP works. Fair enough. I have now tested to use three different AS number on the routers so they all act like eBGP in between them (I have in this test skipped router R4). Only router R2 sees everything. R1 see what R2 announce but not R3 and the same is true for router R3 that it can't see what R1 announce. Still, it must be something obviously that I have missed with this configuration for OpenBGP shall work in a configuration like this? -- //fredan
Re: OpenBGP
mendagen den 28 februari 2011 16.22.10 skrev Henning Brauer: * fredrik danerklint fredan-open...@fredan.se [2011-02-28 15:11]: Hi! I need some help with an configuration of OpenBGP. I have four routers that is connected with p-2-p links between each other: R1 - R2 - R3 - R4 I've only seen networks announced to the nearest router that it is connected to. For example: R1 see R2 but R1 cannot see R3 etc.. that's how BGP works. inside your own AS, the assumptions are 1) every bgp speaker talks to every bgp speaker, or there's a route reflector 2) routing inside the AS is handled by an IGP (e. g. ospf) I have seems to missed this with BGP but now dived into presentations about BGP to learn more about this (that I need some type of a mesh network inside my AS to achieve what I would like to do). There is no other router deamon running on the servers (ie no ospfd). well, you'll need one. Well, ospf6d is so broken that it can't be used in a production environment. Since IPv6 is so important for me as a Internet Service Provider I have to come up with something to solve my needs -- //fredan
Re: OpenBGP
mendagen den 28 februari 2011 19.27.28 skrev fredrik danerklint: mendagen den 28 februari 2011 15.15.21 skrev Claudio Jeker: On Mon, Feb 28, 2011 at 03:08:05PM +0100, fredrik danerklint wrote: Hi! I need some help with an configuration of OpenBGP. I have four routers that is connected with p-2-p links between each other: R1 - R2 - R3 - R4 I've only seen networks announced to the nearest router that it is connected to. For example: R1 see R2 but R1 cannot see R3 etc.. There is no other router deamon running on the servers (ie no ospfd). I think this must be some basic error that I have made. The configuration files is very basic ie: no filter rules at all and there is an allow from any. All the routers have an uniq router id. All routers announce an uniq network that the others don't have. If you use the same AS on all 4 routers then you need to full mesh the four routers (iBGP sessions). Another option would be to use the route-reflector support. This is how BGP works. Fair enough. I have now tested to use three different AS number on the routers so they all act like eBGP in between them (I have in this test skipped router R4). Only router R2 sees everything. R1 see what R2 announce but not R3 and the same is true for router R3 that it can't see what R1 announce. Still, it must be something obviously that I have missed with this configuration for OpenBGP shall work in a configuration like this? I did miss the announce all in the neighbour. Now it does work as eBGP in between. -- //fredan
Re: network bandwith with em(4)
mendagen den 28 februari 2011 23.00.10 skrev Daniel Ouellet: OK. Anyway NIC buffers restrict buffered packets number. But the problem remain: why a (for exemple) dual Xeon E5520@2.27GHz with Intel PRO/1000 (82576) can't route 150kpps without Ierr :-) http://www.oxymium.net/tmp/core3-dmesg Just an idea, but may be it very well could have something to do with this: http://www.openbsd.org/want.html Specifically this part: # Intel 82576 SFP and 82580 based Gigabit Ethernet devices for improving hardware support in em(4). Needed in Hannover, Germany. Contact j...@openbsd.org. I've sent an 4-port network card (Intel NIC I340-T4 (82580 ethernet chipset)) to jsg which he did received 2011-01-18. -- //fredan
Intel NIC I340-T4 (82580 ethernet chipset)
Hi! Is there any plans for supporting this network card from Intel? There is an driver for FreeBSD 7.x series and later available from Intel http://downloadcenter.intel.com/Detail_Desc.aspx?agr=YDwnldID=15815keyword=%2282580%22lang=eng Is it very complicated to port this driver to OpenBSD? The only messages I've seen so far is this http://www.mail-archive.com/freebsd-questions@freebsd.org/msg237533.html -- //fredan
