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- From: mc36 <>
- To: Kaliraj Vairavakkalai <>, Natrajan Venkataraman <>, "" <>, Frédéric LOUI <>
- Subject: Re: [RARE-users] Nanog 86 - BGP CT interop presentation
- Date: Fri, 16 Sep 2022 20:06:15 +0200
hi,
frederic have some documentation on how to have the packets in docker...
please note that the packets will be handled within the rtr,jar and not
by linux... "sho ipv4 socket inet" should give you the right output...
thanks,
cs
On 9/13/22 09:00, Kaliraj Vairavakkalai wrote:
Hi Csaba,
I was able to run your automated tests inside the docker environment, using
instructinos you shared earlier.
But I was not able to make cRPD and cRTR containers talk BGP to each other.
Can you explain how to use socat? You had said something about it earlier.
Also, I don t see bgp listen port to be created in the freeRtr docker
instance.
root@ch-pe26:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
62d8c9084e4b crtr "/sbin/runit-init.sh" 6 hours ago Up 6 hours 22/tcp, 179/tcp, 830/tcp, 3784/tcp, 4784/tcp, 6784/tcp, 7784/tcp, 50051/tcp R3
be731b28bf8b crpd:22.4I20220911_2300_kaliraj "/sbin/runit-init.sh" 22 hours ago Up 22 hours 22/tcp, 179/tcp, 830/tcp, 3784/tcp, 4784/tcp, 6784/tcp, 7784/tcp, 50051/tcp R0
root@R3:/src# ./tw.sh rout-bgp605 capture r1 eth1 capture r2 eth1
- 0/release: starting process
- 0/release: stopping process
- 0/version: starting process
- 0/version: stopping process
- oobase=20001
- slot=0
- paralell=0
- jvm=java -Xmx256m -jar rtr.jar
- release=freeRouter v22.8.29-cur, done by cs@nop.
- version=22.8.29
<snip>
* ---------- starting 1 workers ----------
* ---------- err=0 trc=0 ret=0 don=0 ned=1 tot=1 tim=00:00:00 ----------
rout-bgp605.tst ----------
* test: ebgp with ctp
- 0/r1: starting process
- 0/r2: starting process
- 0/r3: starting process
- 0/r1: pinging 2.2.2.2 vrf v1 sou lo0.
- 0/r1: pinging 2.2.2.3 vrf v1 sou lo0.
- 0/r1: pinging 4321::2 vrf v1 sou lo0.
- 0/r1: pinging 4321::3 vrf v1 sou lo0.
- 0/r2: pinging 2.2.2.1 vrf v1 sou lo0.
- 0/r2: pinging 2.2.2.3 vrf v1 sou lo0.
- 0/r2: pinging 4321::3 vrf v1 sou lo0.
- 0/r2: pinging 4321::1 vrf v1 sou lo0.
- 0/r3: pinging 2.2.2.1 vrf v1 sou lo0.
- 0/r3: pinging 2.2.2.2 vrf v1 sou lo0.
- 0/r3: pinging 4321::1 vrf v1 sou lo0.
- 0/r3: pinging 4321::2 vrf v1 sou lo0.
- 0/r1: pinging 3.3.3.2 vrf v1.
- 0/r3: pinging 3.3.3.1 vrf v1.
- 0/r1: pinging 3.3.4.2 vrf v1.
- 0/r3: pinging 3.3.4.1 vrf v1.
press q to quit test:q
- 0/r1: stopping process
- 0/r2: stopping process
- 0/r3: stopping process
* ../cfg/rout-bgp605.tst;rout-bgp605.tst;success;ebgp with ctp
- summary: 2022-09-13 04:42:50, took 00:05:35, with 1 workers, on 1 cases, 0
failed, 0 traces, 0 retries
error cfgInit.stopRouter:cfgInit.java:1095 shutdown code=1 reason=finished
root@R3:/src#
Then I tried to manually launch rtr.jar in container R3 (172.17.0.4) to talk
BGP to cRPD container R0 (172.17.0.2).
I am able to see the cRPD sent bgp tcp pkts inside R3 interface eth0. But not
the other way round. There is no bgp listen port on RTR side:
root@R3:/# ss -lt
State Recv-Q Send-Q
Local Address:Port
Peer Address:Port Process
root@R3:/#
root@R3:/src# java -Xmx512m -jar rtr.jar routerc R3 // is this the
right way to launch the non-test mode?
#### ##################
## ##
## ## ### ##### ##### ## ### ## ## ###
#### ### ## ## ## ## ## ### ## ## ### ##
## ## ## ####### ####### ## ## ## ## ##
## ## ## ## ## ## ##
## ## ## ## ## ## ## ## ##
## ## ##### ##### ## ## ##
freeRouter v22.8.29-cur, done by cs@nop.
place on the web: http://www.freertr.org/
license: http://creativecommons.org/licenses/by-sa/4.0/
quote1: make the world better
quote2: if a machine can learn the value of human life, maybe we can too
quote3: keep it stupid simple
quote4: be liberal in what you accept, and conservative in what you send
quote5: the beer-ware license for selected group of people:
cs@nop wrote these files. as long as you retain this notice you
can do whatever you want with this stuff. if we meet some day, and
you think this stuff is worth it, you can buy me a beer in return
info cfgInit.doInit:cfgInit.java:771 booting
info cfgInit.doInit:cfgInit.java:784 no hw config found
info cfgInit.doInit:cfgInit.java:788 no sw config found
info cfgInit.doInit:cfgInit.java:952 initializing hardware
info cfgInit.doInit:cfgInit.java:958 applying defaults
info cfgInit.doInit:cfgInit.java:979 applying configuration
info cfgInit.doInit:cfgInit.java:1014 boot completed
welcome
line ready
router#
router#show ipv4 bgp 1 ctp su
neighbor as learn accept will done uptime
172.17.0.2 200 0 0 0 0 never
router#show running-config
hostname router
no buggy
!
!
vrf definition v1
rd 1:1
label4mode per-prefix
label6mode per-prefix
exit
!
router bgp4 1
vrf v1
local-as 100
router-id 172.17.0.4
address-family ctp
neighbor 172.17.0.2 remote-as 200
neighbor 172.17.0.2 local-as 100
neighbor 172.17.0.2 address-family ctp
neighbor 172.17.0.2 distance 20
exit
!
router#show interfaces
router#
I am trying to form the session over the following interface which is present
in the R3 container:
root@R3:/# ip addr show eth0
44: eth0@if45: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP group default
link/ether 02:42:ac:11:00:04 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 172.17.0.4/16 brd 172.17.255.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 2001:db8:1::242:ac11:4/64 scope global nodad
valid_lft forever preferred_lft forever
inet6 fe80::42:acff:fe11:4/64 scope link
valid_lft forever preferred_lft forever
root@R3:/# ping 172.17.0.2
PING 172.17.0.2 (172.17.0.2) 56(84) bytes of data.
64 bytes from 172.17.0.2: icmp_seq=1 ttl=64 time=0.258 ms
^C
--- 172.17.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.258/0.258/0.258/0.000 ms
Thanks
Kaliraj
*From: *Kaliraj Vairavakkalai <>
*Date: *Monday, September 12, 2022 at 12:24 PM
*To: *Natrajan Venkataraman <>, mc36 <>
*Subject: *Re: Nanog 86 - BGP CT interop presentation
Sure Nats. No issues.
Meanwhile I am trying to install freertr inside a docker container.
Thanks
Kaliraj
*From: *Natrajan Venkataraman <>
*Date: *Monday, September 12, 2022 at 10:42 AM
*To: *Kaliraj Vairavakkalai <>, mc36 <>
*Subject: *Re: Nanog 86 - BGP CT interop presentation
Hi kaliraj,
Shall I get back to you by tomorrow? I am working on a customer blocker today.
Thanks,
-Nats-
*From: *Kaliraj Vairavakkalai <>
*Date: *Sunday, September 11, 2022 at 10:40 PM
*To: *mc36 <>, Natrajan Venkataraman <>
*Subject: *Nanog 86 - BGP CT interop presentation
Hi Friends,
Firstly,
hope you noticed the bgp-ct draft update: https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-ct-00#page-35 <https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-ct-00#page-35>
Welcome Csaba as co-author of the draft :-)
Further,
I have been busy with my day job, and haven t followed up on next steps
regarding our Nanog presentation.
I know both of you have been in the same boat. :-)
So, because the nanog dates are coming closer, I wanted to restart the
discussion..
Should we submit presentation proposal?
Here is the link:
https://www.nanog.org/program/call-presentations/
<https://www.nanog.org/program/call-presentations/>
I see they have given a sample presentation template. PFA the same.
Csaba, can you make a ppt from the screen captures in your lab, and submit?
You can present remotely while Nats can be in the room. (I will also be
attending remotely)
We can keep the MD-VPN use case as discussed earlier.
Topology that we were discussing earlier:
NREN GEANT
NREN
pe11---+ +---asbr11
asbr31----+ +-----pe31
/ | | \
/ | | \
[ce1] p1 asbr21---p2---asbr22
p3 [ce2]
\ | | /
\ | | /
pe12---+ +---asbr12
asbr32----+ +-----pe32
(colored-tunnels) (best-effort)
(colored-tunnels)
as4 as1 as2
as3 as5
(junos AS) (freertr AS)
(junos AS)
I think you needed some help on the Junos PE configurations to originate
BGP-CT routes?
Here is snippet of the relevant config from a junos PE. It should work on
vMX/vSRX also.
Pls let me know if you face any issues with these configs.
> show configuration routing-options
route-distinguisher-id 1.1.1.1;
resolution {
preserve-nexthop-hierarchy;
}
transport-class {
name gold {
color 100;
tunnel-egress {
end-point 1.1.1.1;
}
}
}
[edit]
# show protocols mpls
label-switched-path toASBR13-bronze {
to 1.1.1.3;
transport-class bronze;
}
[edit]
# run show route 1.1.1.1 table junos-rti-tc-100.inet.3
junos-rti-tc-100.inet.3: 5 destinations, 9 routes (5 active, 0 holddown, 0
hidden)
+ = Active Route, - = Last Active, * = Both
1.1.1.1/32 *[Direct/6/-51] 1d 10:44:54
Receive
[edit]
# run show route table bgp.transport.3 match-prefix
*1.1.1.1 community transport-target:0:100
bgp.transport.3: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
1.1.1.1:34:1.1.1.1/96
*[Direct/6/-51] 00:04:00
Receive
# show policy-options policy-statement export-bgp
term 2 {
from {
protocol direct;
rib bgp.transport.3;
}
then {
next-hop self;
accept;
}
}
[edit]
# run show route table bgp.transport.3 match-prefix
*1.1.1.1 community transport-target:0:100 extensive
bgp.transport.3: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
1.1.1.1:34:1.1.1.1/96 (1 entry, 1 announced)
TSI:
Page 0 idx 0, (group toAs1BNs type Internal) Type 1 val 0x14297ca0 (adv_entry)
Advertised metrics:
Flags: Nexthop Change
Nexthop: Self
Localpref: 100
AS path: [1] I
Communities: transport-target:0:100
Label: 3
Advertise: 00000007
Path 1.1.1.1:34:1.1.1.1
Vector len 4. Val: 0
*Direct Preference: 6/-51
Next hop type: Receive, Next hop index: 0
Address: 0xa04dddc
Next-hop reference count: 16, key opaque
handle: 0x0, non-key opaque handle: 0x0
State: <Secondary Active NotInstall Int>
Local AS: 1
Age: 4:18
Validation State: unverified
Task: ServiceMapping
Announcement bits (1): 2-BGP_RT_Background
AS path: I
Communities: transport-target:0:100
Primary Routing Table: junos-rti-tc-100.inet.3
Thread: junos-main
[edit]
# <>
Thanks
Kaliraj
Juniper Business Use Only
Juniper Business Use Only
Juniper Business Use Only
- Re: [RARE-users] Nanog 86 - BGP CT interop presentation, mc36, 09/16/2022
- Re: [RARE-users] Nanog 86 - BGP CT interop presentation, Kaliraj Vairavakkalai, 09/16/2022
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