November 2019 - frog - lists.frrouting.org

Yocto Recipe for FRR
by Amol Lad 10 Aug '21

10 Aug '21

Hi, Please advise if there is any Yocto recipe for FRRouting? If not, how to go about creating one for FRR? Yocto Recipe for FRR will hugely simplify integrating FRR in Yocto based embedded linux distributions. So please advise if there are any plans to develop this recipe? Thanks Amol ________________________________ The information in this email communication (inclusive of attachments) is confidential to 4RF Limited and the intended recipient(s). If you are not the intended recipient(s), please note that any use, disclosure, distribution or copying of this information or any part thereof is strictly prohibited and that the author accepts no liability for the consequences of any action taken on the basis of the information provided. If you have received this email in error, please notify the sender immediately by return email and then delete all instances of this email from your system. 4RF Limited will not accept responsibility for any consequences associated with the use of this email (including, but not limited to, damages sustained as a result of any viruses and/or any action or lack of action taken in reliance on it).

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v6 Route Replace semantics
by Donald Sharp 08 Apr '20

08 Apr '20

All - We recently introduced, into master, a new cli switch for zebra on linux `--v6-rr-semantics`. This was allow zebra to take advantage of the linux kernel getting v6 route replace semantics that is coming soon in the 4.18 linux kernel. So if you are on the bleeding edge of linux kernels and FRR you can start to take advantage of this new feature. What are Route Replace semantics you ask? Suppose we have a v6 route with 2 nexthops: S>* 4:6:7::/64 [1/0] via 1:2:3::4, enp0s3, 00:00:02 via 1:2:8::8, enp0s8, 00:00:02 Now suppose we remove a nexthop: robot# conf t robot(config)# no ipv6 route 5:7:9::/78 1:2:8::9 robot(config)# end robot# show ipv6 route [snip] S>* 5:7:9::/78 [1/0] via 1:2:3::4, enp0s3, 00:01:04 Let's look at the netlink notifications for this event: [ROUTE]5:7:9::/78 proto static metric 20 <----------- From creation of the 2x ecmp for 5:7:9::/78 nexthop via 1:2:3::4 dev enp0s3 weight 1 nexthop via 1:2:8::9 dev enp0s8 weight 1 [ROUTE]Deleted 5:7:9::/78 proto static metric 20 <---- We delete the route nexthop via 1:2:3::4 dev enp0s3 weight 1 nexthop via 1:2:8::9 dev enp0s8 weight 1 [ROUTE]5:7:9::/78 via 1:2:3::4 dev enp0s3 proto static metric 20 pref medium <----- We add it back in. In order to get the routes right in the kernel we had to delete the route first and then add it back in. Exposing a small window of packets being dropped while the route is fixed in the fib. Route Replace semantics tells the linux kernel to just replace the nexthops for the route. New packets coming in would immediately start using the new ecmp nexthop group path: [ROUTE]5:7:9::/78 proto static metric 20 nexthop via 1:2:3::4 dev enp0s3 weight 1 nexthop via 1:2:8::9 dev enp0s8 weight 1 [ROUTE]5:7:9::/78 via 1:2:3::4 dev enp0s3 proto static metric 20 pref medium thanks! donald

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DMVPN(nhrpd) status question
by Антон Жаровцев 20 Nov '19

20 Nov '19

Hello. According to nhrpd docs (http://docs.frrouting.org/en/latest/nhrpd.html) need to patches strongswan to work together with frr/nhrpd but this document has date 2017. Is it still need to apply thous patches on strongswan or fresh versions of FRR and strongswan will work together out of the box now ? B.t.w. 1 month ago I tried to set up nhrp network without ipsec but all traffic went through hubs. I did not try to use strongswan due to need to apply this patch (I don't like patched software on docker containers, it is hard to support it then)

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FRR as Route-Reflector & Scaling stats
by Rakesh M 19 Nov '19

19 Nov '19

Hi FRRTeam, We want to Deploy and use FRR for Route reflection on a Dell Edge. Any one has expereience with it and can give insight into number of routes and scale that you used FRR to do Route Reflection -- Rakesh Madupu 2xJNCIE - SP/DC / CCIE-SP#47613 https://r2079.wordpress.com

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Opensource routing @ ietf meetup -- Monday Lunch
by Lou Berger 18 Nov '19

18 Nov '19

Hi, We're continuing with the informal Open Source routing @ ietf meetup. Anyone interested in joining a "bring your own lunch" gathering of folks using/building open source routing code, please drop in to "Bras Basah" on *Monday* during lunch (noon). There is no agenda or slides. Please feel free to bring a topic that you'd like to discuss or just come and listen. Cheers, Lou

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import vrf <vrf_name> vs route-map match source-vrf <vrf_name>
by Bing.S＠dell.com 14 Nov '19

14 Nov '19

Hi, Is there any difference between "import vrf <vrf_name>" and "match source-vrf <vrf_name>" For example route-map myMap permit 1 match ip address prefix-list p1 option1: having "match source-vrf" in the same myMap route-map myMap permit 1 match ip address prefix-list p1 match source-vrf Vrf_red for vrf_blue: address-familiy ipv4 unicast route-map vpn import myMap rt vpn import 1111:11 import vpn option2: do not have "match source-vrf" in the myMap route-map myMap permit 1 match ip address prefix-list p1 for vrf_blue: address-family ipv4 unicast import vrf route-map myMap import vrf Vrf_red What is the difference in terms of routes filtering between the 2 options? Thanks, Bing

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route distinguisher configuration on FRR bgp
by Bing.S＠dell.com 08 Nov '19

08 Nov '19

Hi, Looks like the same route distinguisher can be configured on multiple VRFs in FRR. Would this cause problem? Thanks.

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