Please enable JavaScript.
Coggle requires JavaScript to display documents.
Routing in VPC Context - Coggle Diagram
Routing in VPC Context
Two more contexts for routing
Route53
Elastic Loadbalancer
Routing Tables
VPC has implict router (reserved ip addr)
VPC has always a main routing table (see vpc)
can modify main table or create new tables
can promote table to main table
each routingtable contains a local route for the CIDR Block of the VPC
172.168.0.0/16 --> local
most specific route for an addr wins
can have prefix entries (endoints)
be aware of x.x.x.255 --> broadcast (not allowed) --> routes to nowhere
Borader Gateway Protocol (BGP)
required for Direct Connect connections
optional for VPN connections
Alternative for BGP is static routing
BGP is dynamic routing (choose path along preferences)
supoprts tagging
to control traffic scope and preferences
2 Connection lanes available
tag Direct Connect with weight 150
tag VPN with weight 100
==> will use Direct Connect if available preferred
ASN
Anonymous System Number
it´s a unique endpoint
requires port 179 + ephemeral ports
weight is local to the router
high is preferred