[FROG] FRR 7.0 BGP does not connect to passive neighbor

[Chris G]

Hello,

Meanwhile I have tested several FRR versions using the official RPM 
packages available on the FRR website.

These FRR versions behave exactly the same. When the BGP session is 
configured inside a view, and there is no other non-view BGP session, 
FRR will not attempt to initiate a connection:
frr-5.0.2-001.el7.centos.x86_64.rpm
frr-6.0.2-01.el7.centos.x86_64.rpm
frr-7.0-01.el7.centos.x86_64.rpm

However, this version works as expected:
frr-4.0.1-2019010801.el7.centos.x86_64.rpm

FRRouting 4.0.1 (ts).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
configured with:
      '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' 
'--program-prefix=' '--disable-dependency-tracking' '--prefix=/usr' 
'--exec-prefix=/usr' '--bindir=/usr/bin' '--datadir=/usr/share' 
'--includedir=/usr/include' '--sharedstatedir=/var/lib' 
'--mandir=/usr/share/man' '--infodir=/usr/share/info' 
'--sbindir=/usr/lib/frr' '--sysconfdir=/etc/frr' '--libdir=/usr/lib64' 
'--libexecdir=/usr/libexec' '--localstatedir=/var/run/frr' 
'--disable-werror' '--enable-irdp' '--enable-multipath=256' 
'--enable-vtysh' '--enable-ospfclient' '--enable-ospfapi=yes' 
'--enable-rtadv=yes' '--enable-ldpd' '--enable-pimd' '--enable-nhrpd' 
'--enable-eigrpd' '--enable-babeld' '--enable-user=frr' 
'--enable-group=frr' '--enable-vty-group=frrvty' '--enable-fpm' 
'--enable-watchfrr' '--disable-bgp-vnc' '--enable-isisd=yes' 
'--enable-systemd=yes' '--enable-poll=yes' 
'build_alias=x86_64-redhat-linux-gnu' 
'host_alias=x86_64-redhat-linux-gnu' 
'PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig' 'CFLAGS=-O2 
-g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions 
-fstack-protector-strong --param=ssp-buffer-size=4 
-grecord-gcc-switches   -m64 -mtune=generic' 'LDFLAGS=-Wl,-z,relro '

Is this a very old bug?

Kind regards,
Chris

On 18.04.2019 17:24, Donald Sharp wrote:
> vtysh -c "show ver"
>
> As well as `show bgp nexthop`
>
> donald
>
> On Thu, Apr 18, 2019 at 8:25 AM Chris G <chris.g at euronet.space> wrote:
>> Dear Christoffer,
>>
>> Thank you for your reply!
>>
>> I don't have access to my provider's BGP configuration I'm afraid.
>> However I am pasting my end of the setup below.
>>
>> It might be relevant to note that the BGP instance is configure inside a
>> view, as I do not need anything to be installed in the main routing table.
>>
>> I am using tcpdump to listen on the network interface for any traffic,
>> and FRR doesn't appear to be initiating any connections to my upstream.
>>
>> My BGP config:
>>
>> router bgp 65001 view ISP
>>    bgp router-id 192.168.255.227
>>    bgp log-neighbor-changes
>>    neighbor 192.168.255.225 remote-as 65000
>>    neighbor 192.168.255.225 description default
>>    neighbor 192.168.255.225 update-source 192.168.255.227
>>    neighbor 192.168.255.225 timers 10 30
>>    neighbor 192.168.200.29 remote-as 65000
>>    neighbor 192.168.200.29 description full-table
>>    neighbor 192.168.200.29 ebgp-multihop 255
>>    neighbor 192.168.200.29 update-source 192.168.255.227
>>    !
>>    address-family ipv4 unicast
>>     network 10.10.10.0/24
>>     neighbor 192.168.255.225 soft-reconfiguration inbound
>>     neighbor 192.168.255.225 weight 1000
>>     neighbor 192.168.255.225 prefix-list AS65001-export out
>>     neighbor 192.168.200.29 soft-reconfiguration inbound
>>     neighbor 192.168.200.29 weight 1000
>>     neighbor 192.168.200.29 prefix-list noexport out
>>    exit-address-family
>> !
>>
>> Kind regards,
>> Chris
>>
>> On 18.04.2019 12:58, Hansen, Christoffer wrote:
>>> On 18/04/2019 10:21, Chris G wrote:
>>>> I have an issue where my BGP neighbor is configured in passive mode,
>>>> however my BGP (FRR 7.0) instance does not attempt to connect to this
>>>> neighbor.
>>>>
>>>> Is this expected behavior? Is there any way I can force my BGP instance
>>>> to initiate a connection to the passive BGP neighbor ?
>>> Could you provide the relevant neighbor configuration from both sides of
>>> you BGP peering in this context?
>>>
>> _______________________________________________
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>> frog at lists.frrouting.org
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