RARE user and assistance email list

[mc36 <>]

hi,
the short answer is yes, normally you should have an interface between the 
local linux and freerouter, but it have some huge limitations:

AMS0001#show running-config interface ethernet2
interface ethernet2
 description linux tuntap management interface
 vrf forwarding lin
 ipv4 address 10.255.255.254 255.255.255.0
 no shutdown
 no log-link-change
 exit
!

AMS0001#ping 10.255.255.1 vrf lin
pinging 10.255.255.1, src=null, vrf=lin, 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=80.0%, recv/sent/lost/err=4/5/1/0, took 1017, min/avg/max/dev 
rtt=0/0.5/1/0.2, ttl 64/64.0/64/0.0, tos 0/0.0/0/0.0
AMS0001#

first of all, it's _not_ connected to the tofino asic in any way, so the 
packets passing through it will always be software switched...
then, you'll have to deal with the linux routing table to do the right stuff 
that may interfere with your normal oob traffic...

so instead of performing the ping periodically from the linux, please take a 
look what freerouter's tracker can provide you:

http://wwwin.nop.hu/trackMap.tcl is the list of my publicly available 
trackers... lemme pick myself and show you the stuff on through that example:

services>show tracker | include cs
2022-08-11 10:56:48
cs-600-50     | normal | icmp  | 10.1.252.49        | up    | 3       | 
16:42:51

services>

the configuration is quite straightforward:

services>show running-config track cs
2022-08-11 10:57:51
tracker cs-600-50
 mode icmp
 target 10.1.252.49
 vrf inet
 source loopback0
 random-interval 1000
 interval 2000
 timeout 2000
 delay-down 3
 start
 exit

services>

and at least you can set all the properties you want,
and even it can measure not just icmp but twamp :)
(if you missing a config option, feel free to ask here,
we're more than happy to add more options)

services(cfg)#tracker cs-600-50
services(cfg-trck)#?
  chat-script     - specify script to use
  delay-down      - number of failures before down
  delay-start     - time before start
  delay-up        - number of successes before up
  description     - specify description
  do              - execute one exec command
  editor          - edit the current section
  end             - close this config session
  exec-down       - exec command to execute on down
  exec-up         - exec command to execute on up
  exit            - go back to previous mode
  force           - specify result of runs
  hidden          - hide exec commands
  interval        - specify time between runs
  log             - log actions
  mode            - specify mode of runs
  no              - negate a command
  pubkey          - specify public key
  random-initial  - specify random time before run
  random-interval - specify random time between runs
  range           - specify time range
  rename          - rename this tracker
  runnow          - run one round now
  script          - modify result with script
  security        - select security protocol
  sgt             - specify sgt
  show            - running system information
  size            - size of payload
  source          - specify source of test
  start           - start working
  stop            - stop working
  target          - specify address of test
  timeout         - specify timeout value
  tos             - specify tos
  ttl             - specify ttl
  vrf             - specify vrf of test
  wake-vrf        - wake vrf on state change

services(cfg-trck)#
services(cfg-trck)#mode ?
  bfd       - bidirectional forwarding detection
  check     - local check
  icmp      - icmp echo request
  interface - interface state
  nrpe      - nrpe remote check
  other     - other tracker
  prefix    - exact route table entry for prefix
  route     - any route table entry for address
  script    - tcl script
  tcp       - tcp connection
  twamp     - twamp connection
  udp       - udp connection

services(cfg-trck)#mode



it provides some statistics as soon as the tracker started:

services>show tracker cs-600-50
2022-08-11 10:59:23
category | value
name     | cs-600-50
type     | normal icmp
target   | 10.1.252.49
reported | true
since    | 2022-08-10 18:13:56
for      | 16:45:26
changes  | 3
measures | 28667
ups      | 28464
downs    | 203
current  | true
count    | 10069
since    | 2022-08-11 03:46:59
for      | 07:12:24
clients  |

services>

and it quite easily can integrate to anything... one can export the trackers 
through
streaming telemetry (influxdb), prometheus (grafana), nrpe (icinga) or simple 
rest api:

mc36@noti:~$ curl lg.mchome.nop.hu/.api./exec/show+track+cs-600-50
#show tracker cs-600-50
category;value
name;cs-600-50
type;normal icmp
target;10.1.252.49
reported;true
since;2022-08-10 18:13:56
for;16:49:07
changes;3
measures;28752
ups;28549
downs;203
current;true
count;10154
since;2022-08-11 03:46:59
for;07:16:05
clients;

mc36@noti:~$

and one you decided with the monitoring framework you use, the
promise is that all the show commands could be exported the same way...

br,
cs





On 8/10/22 22:02, Marcos Felipe Schwarz wrote:
> Hi all,
>
> We are working on designing the Management Network for the joint GNA-G/RARE P4 Testbed [1]. We are used to running perfSONAR on our endpoints to schedule recurrent ping and 
> tracerout tests.
>
> On a FreeRtr running on a Wedge P4 switch, can we generate traffic on the 
> dataplane from a Linux app? For instance, from a ping, traceroute or other 
> tool running directly on debian.
>
> PS: I know that ping and traceroute are available on the freertr CLI. But it 
> will be more complicated to integrate it for us.
>
> [1] 
> https://www.google.com/maps/d/u/0/edit?mid=18nal1cRwDPm6jlXjXuyhUXFhpDUOo56W&usp=sharing
>  
> <https://www.google.com/maps/d/u/0/edit?mid=18nal1cRwDPm6jlXjXuyhUXFhpDUOo56W&usp=sharing>
>
> Regards,
>
> Marcos Schwarz
>
> *Gerente de P&D | /R&D Manager/*
>
> Ger  ncia de Execu    o de P&D em Ciberinfraestrutura | /Management of R&D 
> Execution in Cyberinfrastructure/
>
> Diretoria de Pesquisa e Desenvolvimento | /Board of Research and Development/
>
> RNP - Rede Nacional de Ensino e Pesquisa | /Brazilian National Research and 
> Educational Network/
>
> Promovendo o uso inovador de redes avan  adas | /Promoting the innovative use 
> of advanced networks/
>
> http://www.rnp.br <http://www.rnp.br/> | +55 (19) 3787-3386 | Skype ID: 
> marcos.f.sch**
>
> Campinas - SP - Brasil | E-mail:  
> <>