June 2020 - 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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nhrpd event manager
by Joe Maimon 01 Mar '21

01 Mar '21

I have successfully gotten frr,nhrpd,strongswan,charon all running on another system for a dmvpn application. I am currently trying to do another setup, but without vpn/ipsec, just nhrp/gre. Its not working out well, debug logs show Netlink: Received msg_type 28 which if I recall correctly suggests that the neighbor entry isnt being installed correctly, trying it as root worked even less. So while poking around, I see there is an entire event manager unix sock structure. Perhaps I can parse that and do it myself? However, this is as far as I got. I am interacting with it via shell script. Mar 15 08:11:35 debian67 nhrpd[20977]: evmgr: sending event authorize-binding Mar 15 08:11:35 debian67 nhrpd[20977]: Send Registration-Reply(4) 192.168.241.129 -> 192.168.241.130 Mar 15 08:11:35 debian67 nhrpd[20977]: PACKET: Send 45.77.146.76 -> 209.51.164.27 Mar 15 08:11:35 debian67 nhrpd[20977]: evmgr: msg: eventid=214 Mar 15 08:11:35 debian67 nhrpd[20977]: evmgr: msg: result=accept Mar 15 08:11:35 debian67 nhrpd[20977]: evmgr: msg: Mar 15 08:11:35 debian67 nhrpd[20977]: evmgr: received: eventid=214 result= Mar 15 08:11:45 debian67 nhrpd[20977]: cache: t67 192.168.241.130: timeout Mar 15 08:11:46 debian67 nhrpd[20977]: Netlink: Received msg_type 28, msg_flags 0 I have looked at the source and I cant seem to convince the function to recognize that result should be "accept". Any advice appreciated. Joe For the interested, the below is the fledgling script #!/bin/bash PROGNAME=`basename $0` VERSION="0.0.1" usage() { echo "Usage: $PROGNAME -s nhrp-sock [-i interface-name] [-u user] [-g group] " echo "" echo "-s nhrp-sock file" echo "-i interface-name to execute on, may be repeated multiple times" echo "-u user to own the sock" echo "-g group to own the sock" exit 1 } SOCK="/var/run/frr/nhrp.sock" USER="frr" GROUP="frr" j=0 while getopts s:i:u:g: opt; do case "$opt" in s) SOCK="$OPTARG" ;; i) INTARR[((j++))]="$OPTARG" ;; u) USER="$OPTARG" ;; g) GROUP="$OPTARG" ;; esac; done coproc socat - UNIX-LISTEN:$SOCK,unlink-early,setuid-early=$USER || exit 1 OLDIFS="$IFS" while read -r S; do if [[ "$S" == "" ]]; then if [[ "$EVID" != "" ]]; then echo -e "eventid=$EVID\nresult=accept\n"; fi unset EVID unset EVINT continue; fi IFS="${IFS}=" SA=($S) IFS="$OLDIFS" case "${SA[0]}" in eventid) EVID="${SA[1]}" ;; interface) EVINT="${SA[1]}" esac done <&"${COPROC[0]}" >&"${COPROC[1]}" kill "$COPROC_PID"

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Re: [FROG] Is there any material describing the souce code of ospd6d？
by Quentin Young 28 Jun '20

28 Jun '20

Sadly, no. If you have specific questions I suggest joining our community slack channel and asking in #development. On Sun, Jun 28, 2020, 2:16 AM yan via frog <frog(a)lists.frrouting.org> wrote: > > > > ---------- Forwarded message ---------- > From: <yanhc519(a)aliyun.com> > To: frog <frog(a)lists.frrouting.org> > Cc: > Bcc: > Date: Sun, 28 Jun 2020 14:12:06 +0800 > Subject: Is there any material describing the souce code of ospd6d？ > Hi, all. > > I want to read the ospf6d souce code to do a porting to an embedded > platform. However, I found it difficult to understand some data structure, > such as ospf6_lsdb, route_table and route_node. Is there any material > describing these data structrue? > > Thanks > > York > > > > ---------- Forwarded message ---------- > From: yan via frog <frog(a)lists.frrouting.org> > To: frog <frog(a)lists.frrouting.org> > Cc: > Bcc: > Date: Sun, 28 Jun 2020 14:12:06 +0800 > Subject: [FROG] Is there any material describing the souce code of ospd6d？ > _______________________________________________ > frog mailing list > frog(a)lists.frrouting.org > https://lists.frrouting.org/listinfo/frog >

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FRR vtysh config command ordering
by bmrajesh . 28 Jun '20

28 Jun '20

Hi, I have noticed that FRR VTYSH sorts the config commands in alphabetical order. For example: interface gig0/1 ip address <address>/<mask> mtu 9000 Is there a way to change this order, like if i want "mtu 9000" to come before "ip address..." ? One issue is if config A is dependent on config B, and if config A is saved (in frr.conf) before config B, then on restarting a process config A fails and is lost. Thanks & Regards, Rajesh

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Retrieving all routes
by Martin Sustrik 28 Jun '20

28 Jun '20

Hi all, I am running a user-space network stack. I would like to retrieve the list of current routes so that I can use the same set of routes in my stack. What's the best way to do that? Martin

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Re: [FROG] Is there any material describing the souce code of ospd6d？
by yanhc519＠aliyun.com 27 Jun '20

27 Jun '20

Hi, all. I want to read the ospf6d souce code to do a porting to an embedded platform. However, I found it difficult to understand some data structure, such as ospf6_lsdb, route_table and route_node. Is there any material describing these data structrue? I dont know why there is no text in the email so I reply it with the text. Thanks York On 06/28/2020 14:12, yan via frog wrote:

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Is there any material describing the souce code of ospd6d？
by yanhc519＠aliyun.com 27 Jun '20

27 Jun '20

Hi, all. I want to read the ospf6d souce code to do a porting to an embedded platform. However, I found it difficult to understand some data structure, such as ospf6_lsdb, route_table and route_node. Is there any material describing these data structrue? Thanks York

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Re: [FROG] [dev] Ubuntu 20.04 LTS File..
by Chriztoffer Hansen 12 Jun '20

12 Jun '20

On Sun, 7 Jun 2020 at 20:39, Kevin Morales wrote: > when do you are to add the file for Ubuntu 20.04 LTS (focal) on your repository? 💌 "Ubuntu 20.04 LTS (focal) - will be added shortly" - deb.frrouting.org 😃

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Why no ecmp route?
by Simon Jones 12 Jun '20

12 Jun '20

Hi all, Now I use quagga-0.99 as BGP stack in testbed, TOPO as bellow: ``` routerA |--- | ------- DUT | routerB |--- ``` routerA and routerB is aristaOS, its config is: ``` some static route and route-map router bgp 64600 router-id 100.1.0.29 neighbor 10.0.0.56 remote-as 65100 neighbor 10.0.0.56 description 65100 neighbor 10.0.0.56 default-originate route-map DEFAULT_ROUTES neighbor 10.0.0.56 maximum-routes 12000 neighbor fc00::71 remote-as 65100 neighbor fc00::71 description 65100 neighbor fc00::71 default-originate route-map DEFAULT_ROUTES neighbor fc00::71 maximum-routes 12000 redistribute static route-map PREPENDAS # this is used for redistribute local static route into bgp.rib and zebr.rib address-family ipv4 network 100.1.0.29/32 ! address-family ipv6 neighbor fc00::71 activate network 2064:100::1d/128 ! ``` DUT is out router, use quagga-0.99, its config is: ``` router bgp 65100 bgp router-id 10.1.0.32 bgp log-neighbor-changes no bgp default ipv4-unicast bgp bestpath as-path multipath-relax # use this for ECMP network 10.1.0.32/32 network 192.168.0.0/21 neighbor 10.0.0.57 remote-as 64600 neighbor 10.0.0.57 description ARISTA01T1 neighbor 10.0.0.57 timers 3 10 neighbor 10.0.0.57 activate neighbor 10.0.0.59 remote-as 64600 neighbor 10.0.0.59 description ARISTA02T1 neighbor 10.0.0.59 timers 3 10 neighbor 10.0.0.59 activate neighbor 10.0.0.61 remote-as 64600 neighbor 10.0.0.61 description ARISTA03T1 neighbor 10.0.0.61 timers 3 10 neighbor 10.0.0.61 activate neighbor 10.0.0.63 remote-as 64600 neighbor 10.0.0.63 description ARISTA04T1 neighbor 10.0.0.63 timers 3 10 neighbor 10.0.0.63 activate neighbor fc00::72 remote-as 64600 neighbor fc00::72 description ARISTA01T1 neighbor fc00::72 timers 3 10 neighbor fc00::76 remote-as 64600 neighbor fc00::76 description ARISTA02T1 neighbor fc00::76 timers 3 10 neighbor fc00::7a remote-as 64600 neighbor fc00::7a description ARISTA03T1 neighbor fc00::7a timers 3 10 neighbor fc00::7e remote-as 64600 neighbor fc00::7e description ARISTA04T1 neighbor fc00::7e timers 3 10 ! address-family ipv6 network fc00:1::32/128 neighbor fc00::72 activate neighbor fc00::76 activate neighbor fc00::7a activate neighbor fc00::7e activate exit-address-family ! ip forwarding ipv6 forwarding ! line vty ! end ``` But when run this testbed, I found there is no ECMP route on DUT, as bellow: ``` test-hostname(config-router)# do show ip bgp 193.7.248.128/25 BGP routing table entry for 193.7.248.128/25 Paths: (4 available, best #4, table Default-IP-Routing-Table) Advertised to non peer-group peers: 10.0.0.57 10.0.0.61 10.0.0.63 64600 65534 64791 65115 10.0.0.57 from 10.0.0.57 (100.1.0.29) Origin incomplete, localpref 100, valid, external Last update: Wed Jun 10 09:47:27 2020 64600 65534 64791 65115 10.0.0.63 from 10.0.0.63 (100.1.0.32) Origin incomplete, localpref 100, valid, external Last update: Wed Jun 10 06:33:03 2020 64600 65534 64791 65115 10.0.0.61 from 10.0.0.61 (100.1.0.31) Origin incomplete, localpref 100, valid, external Last update: Wed Jun 10 06:32:58 2020 64600 65534 64791 65115 10.0.0.59 from 10.0.0.59 (100.1.0.30) Origin incomplete, localpref 100, valid, external, best Last update: Wed Jun 10 06:32:56 2020 test-hostname(config-router)# do show ip route 193.7.248.128/25 Routing entry for 193.7.248.128/25 Known via "bgp", distance 20, metric 0, best Last update 03:15:00 ago * 10.0.0.59, via PortChannel0002 ``` Why??? Compare with another environment: ``` BJ-GH-M1F203-B02-TEST-12# show ip bgp 1.1.1.224/32 BGP routing table entry for 1.1.1.224/32 Paths: (2 available, best #1, table Default-IP-Routing-Table) Advertised to non peer-group peers: 100.0.34.222 235 224 100.0.56.223 from 100.0.56.223 (100.0.3.223) Origin IGP, localpref 100, valid, external, multipath, best Last update: Tue Jun 9 06:08:59 2020 235 224 100.0.34.222 from 100.0.34.222 (100.0.55.222) Origin IGP, localpref 100, valid, external, multipath Last update: Tue Jun 9 06:08:59 2020 BJ-GH-M1F203-B02-TEST-12# show ip route 1.1.1.224/32 Routing entry for 1.1.1.224/32 Known via "bgp", distance 20, metric 0, best Last update 1d02h19m ago * 100.0.56.223, via Ethernet53 * 100.0.34.222, via Ethernet50 ``` Why does this have ECMP??? For detail, I found there is only one difference, which is `Origin IGP` and `Origin imcomplete`. But I check code, in `bgp_path_info_cmp` function, in step 11, the `paths_eq` only depends on `BGP_FLAG_ASPATH_MULTIPATH_RELAX` and something, nothing with `Origin`. So why there is no ECMP in my testbed??? ---- Simon Jones

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BGPd logging BGP updates
by Niklas Hoglund 05 Jun '20

05 Jun '20

Hi, Can I make BGPd just put all (EVPN) BGP updates into a log file? As they come and go, not just a snapshot (" dump bgp all ") in certain intervals. //Niklas

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