bgp sessions
Using PeeringDB to set up your internet exchange peering – Part 1
When networks exchange traffic without having a customer-provider relationship, this is called peering. We've talked about peering in previous Noction blog posts, such as...
Noction bets on BGP FlowSpec
While networks are agnostic to the content of the serviced packets, end users have a very good understanding of what traffic they have and...
Resetting BGP sessions
It's been a while since we talked about filtering BGP updates. BGP routers need to be configured with the right filters so packets don't...
BGP’s hold and keepalive timers, detecting dead neighbors and BFD
When the BGP session between two routers is established, the two routers exchange prefixes and then start sending traffic for those prefixes to the...
Debugging BGP states
Border Gateway Protocol is unique among routing protocols because it requires a number of parameters to be configured manually on each side before two...
BGP Security: the MD5 password and GTSM
Back in the late 1980s and the early 1990s when BGP was developed, security was still an afterthought for protocols used on the internet....
What should your peering policy look like?
As discussed in earlier posts, as networks grow larger it starts making sense to exchange traffic with other networks directly (peering) rather than pay...
IPv4 BGP vs IPv6 BGP
BGP is older than IPv6. Even BGP-4, the version we still use today, predates IPv6: the first BGP-4 RFC (RFC 1654) was published in...