[BMP-BGP] Routing monitoring feature
Closed, ResolvedPublicFEATURE REQUEST
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	fernando
	Jan 10 2022, 8:05 PM

Description

hi team

BGP has the ability to monitor prefix more advanced than snmp , this rfc explains how this feature works :

https://datatracker.ietf.org/doc/html/rfc7854.html

FRR supports it , we can enable it for VyOS-cli too . below I'll show the steps necessary to enable it :

#enable BMP on BGP demon

bgpd_options="   --daemon -A 127.0.0.1 -M snmp -M rpki -M bmp"

after you should restart bgp daemon and it allows to configure BMP inside BGP process , here is an example:

# FRR configuration

!
frr version 8.1

hostname BGP-BMP

 bgp router-id 10.10.10.10
 bgp log-neighbor-changes
 no bgp ebgp-requires-policy
 no bgp default ipv4-unicast
 no bgp network import-check
 neighbor 20.20.20.20 remote-as 65050
 neighbor 20.20.20.20 update-source dum10
 !
 address-family ipv4 unicast
  neighbor 20.20.20.20 activate
  neighbor 20.20.20.20 soft-reconfiguration inbound
 exit-address-family
 !
# BMP settings 
 bmp mirror buffer-limit 512000000
 !
 bmp targets bmptest
  bmp stats interval 1000
  bmp monitor ipv4 unicast pre-policy
  bmp connect 127.0.0.1 port 5000 min-retry 1000 max-retry 2000
 exit
exit

also , it has its own operational-commands :

##FRR

BGP-BMP# show bmp
BMP state for BGP VRF default:

  Route Mirroring         0 bytes (0 messages) pending
                          0 bytes maximum buffer used
                  512000000 bytes buffer size limit

  Targets "bmptest":
    Route Mirroring disabled
    Route Monitoring IPv4 unicast pre-policy
    Listeners:

    Outbound connections:
 remote           state                            timer
 -------------------------------------------------------------
 127.0.0.1:5000

also , I leave some reference link about BMP

https://blog.apnic.net/2021/12/14/better-route-monitoring-with-bmp/

https://docs.frrouting.org/en/latest/bmp.html

Details

Difficulty level: Unknown (require assessment)
Version: -
Why the issue appeared?: Will be filled on close
Is it a breaking change?: Perfectly compatible
Issue type: Feature (new functionality)

Event Timeline

fernando created this task.Jan 10 2022, 8:05 PM

There is PR which includes this feature https://github.com/vyos/vyos-1x/pull/1088

this PR https://github.com/vyos/vyos-1x/pull/1088 only include how to enable daemon , but it doesn't add VyOS-cli commands in BGP (the daemon only allows you to enable it).

pasik added a subscriber: pasik.Jan 10 2022, 8:51 PM

@fernando Thanks, do you have any idea about syntax?

well , I think it should be something like this :

### FRR BMP

bmp mirror buffer-limit 512000000
 !
 bmp targets bmptest
  bmp stats interval 1000
  bmp monitor ipv4 unicast pre-policy
  bmp connect 127.0.0.1 port 5000 min-retry 1000 max-retry 2000

`

on VyOS-Cli , it looks like this:

set protocols bgp bmp mirror buffer-limit 512000000
set protocols bgp bmp targets $NAME stats interval 1000
set protocols bgp bmp targets $NAME listener $IP-ADRESS/IPV6 port $PORT
set protocols bgp bmp targets $NAME monitor <ipv4-ipv6> unicast pre-policy
set protocols bgp bmp targets $NAME connect $IP-ADRESS/IPV6 port $PORT min-retry 1000 max-retry 2000


#operational-command 

vyos@BGP-BMP:~$ show bmp 

`

I believed in this way is very intuitive but you feel free to changes any command.

Viacheslav assigned this task to fernando.Feb 4 2022, 6:15 PM

we found an error when we tried to upload the configuration using the frr.reload.py . I did an issues request to FRR with this problem ,here is the case:

https://github.com/FRRouting/frr/issues/10548

eronlloyd added a subscriber: eronlloyd.Feb 20 2022, 11:39 AM

this issue with frr.reload.py keeps happening with stable/8.1 , we'll try it when 8.2 is stable.

2022-02-23 17:22:13,946  INFO: /var/run/frr/reload-CCG84F.txt content
['router bgp 65001\n bmp mirror buffer-limit 1600\n  bmp stats interval 1200\n',
 'router bgp 65001\n'
 ' bmp mirror buffer-limit 1600\n'
 '  bmp monitor ipv4 unicast pre-policy\n',
 'router bgp 65001\n bmp mirror buffer-limit 1600\n',
 'router bgp 65001\n bmp mirror buffer-limit 1600\n  bmp targets test55\n',
 'router bgp 65001\n bmp mirror buffer-limit 1600\n  bmp stats interval 1200\n',
 'router bgp 65001\n'
 ' bmp mirror buffer-limit 1600\n'
 '  bmp monitor ipv4 unicast pre-policy\n']
line 3: % Unknown command[24]:   bmp stats interval 1200
line 7: % Unknown command[24]:   bmp monitor ipv4 unicast pre-policy
line 18: % Unknown command[24]:   bmp stats interval 1200
line 22: % Unknown command[24]:   bmp monitor ipv4 unicast pre-policy
2022-02-23 17:22:15,731 WARNING: frr-reload.py failed due to
vtysh (exec file) exited with status 2
vyos@vyos:~$ ls

I've been testing , now we are able to configure BMP with load configuration .in latest version 8.2.2(they solved these issues)

2022-03-19 19:44:46,067 DEBUG: Running Frr Config (Pass #1)
frr version 8.2.2
frr defaults traditional
hostname debian
log syslog
log facility local7
hostname vyos
service integrated-vtysh-config
!
router bgp 65001
no bgp ebgp-requires-policy
no bgp default ipv4-unicast
no bgp network import-check
neighbor 172.16.50.2 remote-as 65050
neighbor 172.16.50.2 description ISP1
neighbor 172.16.50.2 update-source eth1
neighbor 172.16.120.2 remote-as 65035
neighbor 172.16.120.2 description ISP2
neighbor 172.16.120.2 update-source eth2
!
address-family ipv4 unicast
network 10.10.10.10/32
neighbor 172.16.50.2 activate
neighbor 172.16.50.2 soft-reconfiguration inbound
neighbor 172.16.120.2 activate
neighbor 172.16.120.2 soft-reconfiguration inbound
exit-address-family
!
bmp mirror buffer-limit 1600
!
bmp targets test55
bmp stats interval 1200
bmp monitor ipv4 unicast pre-policy
exit
exit
!
end
2022-03-19 19:44:46,080  INFO: /var/run/frr/reload-PMKSUG.txt content
['ip route 0.0.0.0/0 172.16.50.1 eth0 tag 210 210\n',
 'router bgp 65001\n bmp mirror buffer-limit 1600\n',
 'ip route 0.0.0.0/0 172.16.50.1 eth0 tag 210 210\n',
 'router bgp 65001\n bmp targets test55\n',
 'router bgp 65001\n bmp targets test55\n  bmp stats interval 1200\n',
 'router bgp 65001\n'
 ' bmp targets test55\n'
 '  bmp monitor ipv4 unicast pre-policy\n']

and process work without extra setting:

vyos@vyos:~$ ps aux | grep bmp
frr          975  0.0  3.2 190420 15924 ?        Ssl  19:25   0:00 /usr/lib/frr/bgpd -d -F traditional --daemon -A 127.0.0.1 -M snmp -M rpki -M bmp
vyos        2240  0.0  0.1   6180   664 ttyS0    S+   19:50   0:00 grep bmp

``

mpueschel added a subscriber: mpueschel.May 11 2022, 10:58 PM

aalmenar added a subscriber: aalmenar.Jul 22 2022, 5:36 PM

plett added a subscriber: plett.Dec 21 2022, 10:37 AM

HON added a subscriber: HON.Apr 28 2023, 11:25 AM

adestis added a subscriber: adestis.Nov 20 2023, 11:38 AM

PR https://github.com/vyos/vyos-1x/pull/2627

set system frr bmp
commit
run restart bgp

set protocols bgp system-as '65001'
set protocols bgp neighbor 192.168.122.11 address-family ipv4-unicast
set protocols bgp neighbor 192.168.122.11 remote-as '65001'

set protocols bgp bmp mirror-buffer-limit '256000000'
set protocols bgp bmp target foo address '127.0.0.1'
set protocols bgp bmp target foo port '5000'
set protocols bgp bmp target foo min-retry '1000'
set protocols bgp bmp target foo max-retry '2000'
set protocols bgp bmp target foo mirror
set protocols bgp bmp target foo monitor ipv4-unicast post-policy
set protocols bgp bmp target foo monitor ipv4-unicast pre-policy
set protocols bgp bmp target foo monitor ipv6-unicast post-policy
set protocols bgp bmp target foo monitor ipv6-unicast pre-policy

fernando changed the task status from Open to Needs testing.Dec 13 2023, 10:07 PM

when it's merge , I will test with the controller to see if we are able to get BMP with the new FRR version.

Will be available in the next rolling release

Viacheslav added a project: VyOS 1.5 Circinus.Dec 20 2023, 9:34 AM

Viacheslav moved this task from Need Triage to Finished on the VyOS 1.4 Sagitta board.

Viacheslav moved this task from Need Triage to Finished on the VyOS 1.5 Circinus board.

c-po closed this task as Resolved.Dec 28 2023, 7:58 PM

[BMP-BGP] Routing monitoring featureClosed, ResolvedPublicFEATURE REQUESTActions

Description

Details

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[BMP-BGP] Routing monitoring feature
Closed, ResolvedPublicFEATURE REQUEST
Actions