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Re: [RARE-users] [freertr] clear p4lang p4 - required in case of interface addition


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  • From: Xavier Jeannin <>
  • To: mc36 <>, ,
  • Subject: Re: [RARE-users] [freertr] clear p4lang p4 - required in case of interface addition
  • Date: Wed, 26 Oct 2022 09:45:30 +0200
  • Dkim-filter: OpenDKIM Filter v2.10.3 zmtaauth03.partage.renater.fr 2DCD2802A1
thank you Csaba

here it is

---------- configuration of the VLAN to connect the client ---
DAV0001#conf t
DAV0001(cfg)#bridge 4
DAV0001(cfg-brdg)#mac-learn
DAV0001(cfg-brdg)#exit
DAV0001(cfg)#interface sdn15.18
DAV0001(cfg-subif)#bridge-group 4
DAV0001(cfg-subif)#exit
DAV0001(cfg)#interface bvi4
DAV0001(cfg-if)#vrf forwarding inet
DAV0001(cfg-if)#ipv4 address 18.18.18.1 255.255.255.0
DAV0001(cfg-if)#exit
DAV0001(cfg)#exit
DAV0001#ping 18.18.18.1 vrf inet
pinging 18.18.18.1, src=null, vrf=inet, cnt=5, len=64, df=false, tim=1000, gap=0, ttl=255, tos=0, sgt=0, flow=0, fill=0, alrt=-1, sweep=false, multi=false
!!!!!
result=100.0%, recv/sent/lost/err=5/5/0/0, took 1, min/avg/max/dev rtt=0/0.1/1/0.1, ttl 255/255/255/0.0, tos 0/0.0/0/0.0

DAV0001#show ipv4 arp bvi4
mac             address      time      static
246e.964c.3e1a  18.18.18.44  00:00:37  false

-----------------

DAV0001#clear p4lang p4

----> then ping with client works

------------- configuration bundle for connection to the PE ------------

DAV0001#conf t
DAV0001(cfg)#interface bundle1.18
DAV0001(cfg-subif)#bridge-group 4
DAV0001(cfg-subif)#exit
-------------

DAV0001#clear p4lang p4
----> then ping from client to PE works

Regards
Xavier

Le 26/10/2022 à 09:29, mc36 a écrit :
hi,
could you please give me the exact cli commands you execute on the rare box?
then maybe i can fix the issue... :)
(it must be a bug somewhere in the freerouter exporting process...)
thanks,
cs



On 10/26/22 09:26, wrote:
Hello

In my use case (see below graph) , from time to time, I will have to add a new 'virtual' interface (bundle1.12 ... bundle1.15 etc ...) for each client.
I notice that I need to make a 'clear p4lang p4' on the PPN, each time I add a client.
This annoy me because it will generate traffic perturbation when adding a new client on the traffic of all other clients.

Maybe I do not configure correctly me P4lang server

/DAV0001#show running-config server p4lang p4//
//server p4lang p4//
//  export-vrf inet//
//  export-port sdn15 12 10 0 0 0//
//  export-port sdn10 52 10 0 0 0//
//  export-port sdn7 176 10 0 0 0//
//  export-port bundle1 dynamic 0 0 0 0//
//  interconnect ethernet0//
//  vrf p4//
//  exit/

Here is the description of the steps I follow to add a client :

1/ I create a VLAN between the client (here a linux machine) and the PPN Wedge; I implement a bridge on the PPN and put an address on the bvi of the bridge to check the connectivity
then
On the client - Ping from client to the bvi on the PNN -- failed
On the PPN - clear p4lang p4
then the Ping works

2/ I implement the connection between the PPN and the PE (Bundle configuration on the PPN and on the PE)
The
On the client - Ping from client to the end of the bundle on the PE -- failed
On the PE - clear p4lang p4
On the client - Ping from client to the end of the bundle on the PE -- still ailed
On the PPN - clear p4lang p4
then the Ping works


Any idea ?
My conf is below

Thank you
Xavier


DAV0001#show running-config hide
hostname DAV0001
buggy
!
logging buffered debug 10240
logging file debug /var/log/freertr.log
logging rotate 655360000 /var/log/freertr.old
!
aaa userlist usr
   username rare
   exit
!
bundle 1
   loadbalance round
   exit
!
bridge 1
   mac-learn
   exit
!
bridge 2
   mac-learn
   exit
!
bridge 3
   mac-learn
   exit
!
bridge 4
   mac-learn
   exit
!
vrf definition inet
   exit
!
vrf definition p4
   exit
!
interface bundle1
   no shutdown
   no log-link-change
   exit
!
interface bundle1.11
   bridge-group 1
   no shutdown
   no log-link-change
   exit
!
interface bundle1.12
   bridge-group 2
   no shutdown
   no log-link-change
   exit
!
interface bundle1.18
   bridge-group 4
   no shutdown
   no log-link-change
   exit
!
interface bundle1.19
   bridge-group 3
   no shutdown
   no log-link-change
   exit
!
interface bvi1
   no shutdown
   no log-link-change
   exit
!
interface bvi2
   no shutdown
   no log-link-change
   exit
!
interface bvi3
   vrf forwarding inet
   ipv4 address 19.19.19.1 255.255.255.0
   no shutdown
   no log-link-change
   exit
!
interface bvi4
   vrf forwarding inet
   ipv4 address 18.18.18.1 255.255.255.0
   no shutdown
   no log-link-change
   exit
!
interface ethernet0
   no shutdown
   no log-link-change
   exit
!
interface ethernet1
   no shutdown
   no log-link-change
   exit
!
interface ethernet2
   no shutdown
   no log-link-change
   exit
!
interface sdn10
   mtu 1500
   macaddr 002b.1540.1530
   bundle-group 1
   no shutdown
   no log-link-change
   exit
!
interface sdn15
   mtu 1500
   macaddr 007c.326c.7058
   no shutdown
   no log-link-change
   exit
!
interface sdn15.11
   bridge-group 1
   no shutdown
   no log-link-change
   exit
!
interface sdn15.12
   bridge-group 2
   no shutdown
   no log-link-change
   exit
!
interface sdn15.18
   bridge-group 4
   no shutdown
   no log-link-change
   exit
!
interface sdn15.19
   bridge-group 3
   no shutdown
   no log-link-change
   exit
!
interface sdn7
   mtu 1500
   macaddr 006c.6722.2e73
   bundle-group 1
   no shutdown
   no log-link-change
   exit
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
sensor ifaces-hw
   path interfaces-hw/interface/counter
   prefix freertr-ifaces
   prepend iface_hw_byte_
   command sho inter hwsumm
   name 0 ifc=
   key name interfaces-hw/interface
   replace \. _
   column 1 name st
   column 1 replace admin -1
   column 1 replace down 0
   column 1 replace up 1
   column 2 name tx
   column 3 name rx
   column 4 name dr
   exit
!
sensor ifaces-sw
   path interfaces-sw/interface/counter
   prefix freertr-ifaces
   prepend iface_sw_byte_
   command sho inter swsumm
   name 0 ifc=
   key name interfaces-sw/interface
   replace \. _
   column 1 name st
   column 1 replace admin -1
   column 1 replace down 0
   column 1 replace up 1
   column 2 name tx
   column 3 name rx
   column 4 name dr
   exit
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
server telnet p4
   security protocol telnet
   exec logging
   no exec authorization
   no login authentication
   login logging
   vrf p4
   exit
!
server telnet telnet
   no exec authorization
   no login authentication
   vrf p4
   exit
!
server p4lang p4
   export-vrf inet
   export-port sdn15 12 10 0 0 0
   export-port sdn10 52 10 0 0 0
   export-port sdn7 176 10 0 0 0
   export-port bundle1 dynamic 0 0 0 0
   interconnect ethernet0
   vrf p4
   exit
!
server prometheus pr
   sensor ifaces-hw
   sensor ifaces-sw
   interface bvi3
   vrf inet
   exit
!
!
end


--
Xavier JEANNIN
Network Dpt.
GN4-3 Network technology evolution (WP6 T1) task leader
T  l. : +33 1 5394 2042
Mob. : +33 6 3017 0963
www.renater.fr

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--
Xavier JEANNIN
Network Dpt.
GN4-3 Network technology evolution (WP6 T1) task leader
Tél. : +33 1 5394 2042
Mob. : +33 6 3017 0963
www.renater.fr


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