MikroTik

jd603

Others have said the NIC has worked well for them on RouterOS x86. ... and it does work well with a single NIC when I tested.

Where is the official supported NIC list for RouterOS x86?

Either way, no routing software should be disabling an interface permanently like this,

jd603

I am testing out two 25gbit ConnectX-4 NICs (MCX4121A-ACAT - latest fw from nvidia's site) and I am experiencing a problem where if I insert one NIC it works fine, if I try to add a second, the old NIC stops working. Removing the new NIC that was added doesn't fix the original NIC either. I tried in...

jd603

This started happening to me with 7.x too. I'm starting to think it is just certain packets being sent that the driver doesn't like, I don't think it necessarily means performance is degraded. It's possible these packets always had issues but just with a new driver or change to ROS we now see them d...

jd603

I actually experienced this on a Dell R730 with logical processors/hyper threading enabled. I am running 7.15.2. When I disabled logical processors in BIOS it became stable. I do still get some RX-ERRORS that I am confused about, it happens on all ports regardless of what SFP is plugged in it seems....

jd603

I had a filter starting with 0 and ending with 5 , i replaced these one by one with add chain=xxx_out rule="if (dst == xxxx/22) { set bgp-path-prepend 3; accept; }" place-before=X , i did a place-before=0 on the final one and that filter entry stopped working. This was a rule to let an imp...

jd603

Since a recent ROS v7 update , my older Arista switches are spamming their logs. They are discarding some announcements from ROS7 apparently, it appears as if I cannot silence them using their logging level settings at all either. Cisco and Juniper switches log no errors. Apr 11 12:02:26 localhost R...

jd603

So... hardware offloading with VLANs and VRRP works correctly on this switch now?

jd603

Since this 7.12rc1 upgrade from 7.10 x86 i'm seeing rx-errors on interfaces that previously had none. Other side shows no errors. It's not a lot of errors and doesn't seem to be impacting performance yet but it's something new. I'm assuming this was driver changes that may have induced it. Anyone el...

jd603

Looks like if I enable multiqueue-ethernet-default ie mq-fifo/pfifo on 1Gbit interfces, the system becomes completely unstable, interfaces flap, even total crashes/reboots. This is with Broadcom Netextreme NICs and Intel quad gbit NICs etc. They were ok on v6. The Intel 10Gbit 5xx series NICs are ju...

jd603

Can this be enabled some how? Really should have these in the logs same as v6 by default. I tried adding a bgp logging entry !raw, !debug and it doesn't seem to show anything. topics=bgp,!raw,!debug,!packet prefix="" action=memory I'd like any major BGP errors or connect/disconnects to be ...

jd603

Can this be enabled some how? Really should have these in the logs. I tried adding a bgp logging entry !raw, !debug and it doesn't seem to show anything.

topics=bgp,!raw,!debug,!packet prefix="" action=memory

I'd like any major BGP errors or connect/disconnects to be logged.

jd603

Well I prefer CLI, barely touch GUIs for configuration of anything. I'm sure they will follow up with proper GUI. Sure, v7 still needs some things like BFD and probably some more testing/bug fixes but it's cheap and it seems to be coming along nicely. Performance is much better.

jd603

+1 for v7 BFD here too. Was just looking into it and found this thread.

jd603

Ok.. this could be a start to solving the mystery. the routes being learned from the eBGP peer are showing as "filtered" under /routing route .. they certainly should not be... even when withdrawing all other routes, they still show as filtered. So I will check my incoming filters first an...

jd603

Did a fresh CD install of 7.7rc4, chose to clear config on install, built the new config from scratch, very basic everything, v7 is still not sending ibgp routes to my v6 router. So.. show me your exact config, a basic config that does this without setting ibgp-rr. I can provide my full config as we...

jd603

OK. I'll do a re-install and config from scratch and will report back.

jd603

What routes are being sent to the v6 router? the current real internet routing table or one you generated? The only main config difference I see is you are using output.network with a firewall address list. When I add IP blocks to that they do get announced to their iBGP peer, or at least I was able...

jd603

Wait hold up - your core router is v7 - the issue i have is v7 sending ibgp routes (ebgp learned and non ibgp-rr configured) to v6 ... v6 sends all routes to v7 fine.

jd603

Very odd. I guess I can try a re-install. I'll mess with it some more and report back.

jd603

The problem with your design is it isn't using the standard ibgp full mesh, it's using ibgp-rr route reflector - this should not be required with my design and it isn't on any other vendors router that I know of. Once 7.7 is out of RC i will retry configuring as ibgp-rr even though it's not normal f...

jd603

No I am using static interface IP addresses. I tested on IPv6 but nothing I do will send routes to the v6 router on ip4 or 6. the v6 router shows "updates-received=0" for the ibgp peers. Not sure when I can test with another v7 router but will let you know if I do. Is there a working confi...

jd603

Unfortunately, no. I just tested on IPv6 BGP, i disabled the eBGP peer on the rosv6 router and no routes were added from the v7 router. No routes are being sent to the v6 router by v7 despite a filter to allow all and a basic configuration. There is clearly some type of issue. The only other thing I...

jd603

The routes are not being sent at all. So.. for example, if the routes learned from eBGP on router 1 are active on both routers and the eBGP session is lost, the inactive eBGP routes on router 2 would need to become active in the local routing table after the failed routes learned from router 1 get r...

jd603

Hey there. Just a totally basic config: v7 router config: 0 name="peer7" remote.address=x.x.x.6 .port=179 .as=30xxx local.address=x.x.x.5 .port=179 .role=ibgp connect=yes listen=yes routing-table=main router-id=x.x.x.45 templates=ibgp as=30xxx address-families=ip output.filter-chain=allowa...

jd603

Just an update... nothing worked,,, back to waiting for acknowledgement of a problem and fix or someone showing me a config that actually works for this

jd603

Ahh too bad. Is your other router a mikrotik v7 or v6?

jd603

I tried that awhile ago, it caused duplicate routes previously. Also, iBGP is supposed to be full mesh by default, configuring as route reflector usually implies something different so i'm a little confused here and not sure this is correct behavior. UPDATE: I tried my IPv6 feeds with ibgp-rr and it...

jd603

Bump. The good news is the flap bug from my first attempt at moving to v7 is gone. The bad news is, me along with several others are still having issues with this one... I have tried every config option and variant to get v7 to announce all its eBGP learned routes to its iBGP peers. Nothing works. T...

jd603

1. For BGP to redistribute received routes from upstream, both peers must be running the same instance. 2. For "BGP networks" to be advertised there must be corresponding IGP route in the routing table. 1. what does this mean, they are both in the same routing-table "main", both...

jd603

Having the same issue... opened a new post but should have just bumped this one

jd603

This was the issue last time I tried to upgrade. The v7 router has lots of BGP routes learned from upstream and it needs to share these routes with its iBGP neighbor. It doesn't by default, I tried adding an allowall output.filter-chain , it didn't do anything. The v7 router is learning all BGP rout...

jd603

Well I did not see that anything was in a different instance. It did use the auto config when upgrading, maybe that broke something. I will check again when I try another deployment. There were several reasons I had to revert and that was one of them. I think the others may have been dealt with too,...

jd603

The people commenting here shouldn't be... there is an issue with iBGP routes sharing to peers by default. I had this issue when testing v7 and I rolled back to 6 until it is resolved. This is a very common configuration for an ISP or anyone who wants a good failover/performance set up and it just w...

jd603

I have not tested yet, it will probably be a couple months before I attempt 7.x again but I will get to it. Have you tested anything?

Hey jd603,

Just checking in I am curious if this issue has been resolved with any of the beta versions or any Stable-ish release of 7.2.x

jd603

I jokingly flagged this thread as solved but wanted to update it in case Mikrotik support wants to look for bugs in here. There is a nasty flapping bug when BGP peering with a Juniper router (certainly could be on my specific config but I will not be using 7.x again until iBGP full mesh works) AND m...

jd603

Not sure I'm following completely but the blackhole routes are usually distance=254 so they aren't actually used for anything, it just puts them in the routing table to nail them up. You can do a lot with routing filters too.

jd603

I appreciate the developers and their hard work. I suspect 7.x will be fine for simple routing situations but it should be considered BETA in regards to BGP at the least. It should come with that warning especially after seeing people come forward with show stopper bugs. This flapping one was quite ...

jd603

It's definitely not, turns out, the whole time I was trying to test v7 on my less utilized router, it was flapping ALL my announcements continuously. Some providers dampened those announcements and I made the top 50 list of most active ASs on the entire internet. HAHAHAHAHHA. BOOM! rolled back to v6...

jd603

So... I guess with v7, iBGP full mesh/full route support is gone? Rolling back to v6 until it is realized / fixed or I figure out how to make it announce all iBGP routes (no, configuring route reflection is not the correct way).

jd603

Also an iBGP mesh with all other vendors (Cisco, Juniper etc) just shares all routes without setting anything up as a route reflector. That should not be necessary to get iBGP to share routing tables. I'm not getting this. OK I am able to get routes to announce to iBGP peers in role=ibgp mode as lon...

jd603

https://datatracker.ietf.org/doc/html/r ... tion-5.1.3

This sounds simple enough -- but this does not seem to be what is happening.

jd603

Ok, it had nothing to do with my config change. Everything works right except when the v6 router learns routes from v7 as a peer, it is setting the gateway incorrectly. It is setting the route to the same external eBGP gateway as other routes being learned on the v6 router. 4 ADb dst-address=1.0.4.0...

jd603

Actually, this was not the correct solution. I should not need route reflection enabled. Routers by default advertise all their eBGP learned routes to their iBGP peers. This is not happening from the v7 router to the v6 router. It might be one other issue I need to fix in the config and will report ...

jd603

That was it! igp-rr worked ... I could't find any documentation on that .. is there a list of roles some place? Also, I actually did not need any output filter and redistribute bgp is not relevant either, the key is ibgp-rr as a role. does it do the same, if you change the local role to "igp rr...

jd603

You can't. They have not implemented this (routing bgp advertisements) yet. It's a big one I know.

jd603

1 name="peer5" remote.address=2001:4:69::1 .port=179 .as=33333 local.address=2001:4:69::2 .port=179 .role=ibgp connect=yes listen=yes routing-table=main router-id=204.88.94.45 templates=ibgp as=33333 address-families=ipv6 output.redistribute=bgp input.filter=allowall The ibgp template is s...

jd603

Yes I did try that and just tried again. Doesn't seem to do anything. I tried without any input/output filters, with input/output filters. Nothing. If I connect a v6 router it will send all routes and v7 will receive them all though.

jd603

I have two border routers that both keep full BGP routing tables of their upstream connection and their neighbors upstream connection. Typically the default iBGP configuration will announce all routes in the table to its peer. This seems impossible with RouterOS v7 for some reason. eBGP is announcin...

jd603

Thanks for the info. Might give it a try. I think I can do 2 full feeds and only partial for the other peer. It'd be great if I knew that within a year it would be multithreaded.. it's been talked about for years now it looks like. Ok done whining. haha

jd603

Are you over clocking? Have you tried 6.41 yet?

Send the support file to mikrotik support yet? Anything back?

jd603

I know this has been hyped for v7 but I think adding this to 6.x should be key. I was looking at some ccr1072s for a new deployment but there are 3 upstream providers with full IPv4 and 6 feeds from each. I have some concerns about performance if I deploy with them. I have solutions for DDoS weaknes...

jd603

I've seen this same thing on x86 RouterOS (although it did handle more traffic than your CCR). I believe this is Linux kernel related. No reason the router should blow up but it does. I didn't have specific RAW rules in place so maybe in my case with more CPU available I'll get it to a reasonable po...

jd603

edited

jd603

Correct me if i'm wrong, but wouldn't compiling the routeros kernel for PAE be a simple task to support 4GB+ or would that break old x86 hardware? Also, why only 2GB in the current version, isnt the theoretical limit more like 3GB for x86 32-bit?

jd603

So.. sorry if this is the wrong place for a "feature" request. ...but isn't it as easy as compiling the x86 linux kernel with PAE support in order to allow 4GB+ RAM? Or would that break old x86 hardware? I've compiled for PAE before and it was simple and apps just worked. Seems like a triv...

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