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Maniphest T4303

BGP neighbor interface v6only fails to commit
Resolved (N/A)PublicBUG
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Description

# show protocols 
 bgp {
     address-family {
         ipv4-unicast {
             redistribute {
                 connected {
                 }
             }
         }
     }
     local-as 65022
     neighbor eth5 {
         interface {
             remote-as 65001
         }
     }
     parameters {
         router-id 10.32.0.31
     }
     peer-group SPINE {
         address-family {
             ipv4-unicast {
                 route-map {
                     export UNDERLAY-EXPORT
                 }
             }
             ipv6-unicast {
             }
         }
         capability {
             extended-nexthop
         }
         password XXX
       }
 }

When setting the BGP v6only for interface neighbor, the commit fails to start the BGP service.

vyos# set protocols bgp neighbor eth5 interface v6only peer-group 'SPINE'
[edit]
vyos# commit
[ protocols bgp ]
VyOS had an issue completing a command.

Traceback (most recent call last):
  File "/usr/libexec/vyos/conf_mode/protocols_bgp.py", line 328, in <module>
    apply(c)
  File "/usr/libexec/vyos/conf_mode/protocols_bgp.py", line 319, in apply
    frr_cfg.commit_configuration(bgp_daemon)
  File "/usr/lib/python3/dist-packages/vyos/frr.py", line 480, in commit_configuration
    raise ConfigurationNotValid(f'Config commit retry counter ({count_max}) exceeded')
vyos.frr.ConfigurationNotValid: Config commit retry counter (5) exceeded



[[protocols bgp]] failed
Commit failed
[edit]

Details

Difficulty level
Unknown (require assessment)
Version
1.4-rolling-202203161304-amd64
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Unspecified (possibly destroys the router)
Issue type
Bug (incorrect behavior)

Event Timeline

daniil created this task.Mar 16 2022, 1:47 PM
pasik added a subscriber: pasik.Mar 16 2022, 3:44 PM
fernando added a subscriber: fernando.May 23 2022, 9:05 PM
daniil added a comment.Jun 9 2022, 4:39 PM

This configuration commits without errors. Can the report be closed?

set protocols bgp neighbor eth5 interface peer-group 'SPINE'
# show protocols 
 bgp {
     address-family {
         ipv4-unicast {
             redistribute {
                 connected {
                 }
             }
         }
     }
     local-as 65022
     neighbor eth5 {
         interface {
             peer-group SPINE
             v6only {
             }
         }
     }
     parameters {
         router-id 10.32.0.31
     }
     peer-group SPINE {
         address-family {
             ipv4-unicast {
                 route-map {
                     export UNDERLAY-EXPORT
                 }
             }
             ipv6-unicast {
             }
         }
         capability {
             extended-nexthop
         }
         password XXX
         remote-as 65001
       }
 }
Viacheslav added a project: VyOS 1.4 Sagitta.Oct 13 2022, 3:55 PM
Viacheslav added a subscriber: Viacheslav.

I can't reproduce this bug with the latest rolling

vyos@r14# run show conf com | match bgp
set protocols bgp address-family ipv4-unicast redistribute connected
set protocols bgp neighbor eth1 interface remote-as '65001'
set protocols bgp neighbor eth1 interface v6only peer-group 'SPING'
set protocols bgp peer-group SPING address-family ipv4-unicast
set protocols bgp peer-group SPING address-family ipv6-unicast
set protocols bgp peer-group SPING capability extended-nexthop
set protocols bgp peer-group SPING password 'foo'
set protocols bgp system-as '65001'

@daniil Could you recheck?
If all is ok, we can close it.

Viacheslav closed this task as Resolved N/A.Jan 9 2023, 1:34 PM