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INSTALLATION

Install any of the supported base linux. eg: Debian/Ubuntu
Follow this steps: https://deb.frrouting.org/
Uncomment net.ipv4.ip_forward=1 in /etc/sysctl.conf and then apply with: sysctl -p
If possible to access via console, remove all the network configuration from the linux level.
restart linux
enable daemons in /etc/frr/daemons

INSTALL https://docs.frrouting.org/en/latest/snmp.html

start frr
apply first config (management)
configure terminal → log file /var/log/frr/frr.log → end → write memory
Restart FRR as below:

/usr/lib/frr/frr-reload.py /etc/frr/frr.conf --reload
/usr/lib/frr/frrinit.sh restart

Configure snmp agent: https://panda314159.net/doku.php?id=linux SNMP AGENT IN LINUX

Zebra IS THE RIB

Relevant files:

/etc/frr/daemons
/etc/frr/frr.conf

To restart frr:

/usr/lib/frr/frr-reload.py /etc/frr/frr.conf --reload
/usr/lib/frr/frrinit.sh restart
Or
sudo systemctl start frr.service

Also here: https://github.com/FRRouting/frr/blob/master/tools/frr-reload.py

Most of the vantage points are now ipv4 default, so:

show bgp ipv4 unicast 203.190.181.0    ! to pull a route
sh ip bgp regexp _200981$   ! regexp anything from our ASN
sh ip bgp regexp _200981$   ! regexp anything from our ASN
show bgp ipv4 unicast regexp 174_([0-9]+)_200981$ ! regexp anything from our ASN traversing Cogent

Binding files: External Link,

Route Servers IXP: