A detailed study of BGP and core MPLS, from the basics of how it works through to advanced issues such as route reflectors, policy, filtering, route selection and routing registries. Practical hands on with Cisco routers follow the major sessions to reinforce the theory. Juniper configurations are also explored in the theory sessions.
TCP/IP Foundation for engineers
Definitive IP routing for engineers
By the end of the course delegates will be able to:
Basic BGP
IGPs, EGPs, What’s BGP? BGP RIB, in/out process, tables peers, adding routes.
Simple configuration and troubleshooting.
The Internet and peering
ASs, AS numbers, Internet structure, ISP types, ISP network design, IXs, peering vs. transit, public/private peering, bi/multi-lateral peering.
How BGP works
Incremental updates, Path vector protocols, BGP protocol stack, the BGP header, message types, NLRI, withdrawn routes, route refresh, route dampening.
More troubleshooting, packet analysis.
MBGP
Multiprotocol routing, AFI, SAFI, MBGP and multicasts, IPv6, MPLS VPNs.
IPv6
BGPv4 aggregation
CIDR, benefits, techniques, shortcuts, configuring BGP aggregation, leaking routes.
Reducing routing table size.
BGP path selection
BGP attributes, attribute types, route selection order, Local preference, AS prepend, MEDs.
Influencing traffic with BGP.
BGP routing policies
What is policy? Examples, route filtering, AS filtering, REs, applying preference selectively, peer groups.
Sophisticated policies.
RIPE and routing registries
RIRs, Allocations, assignments, PI vs. PA. Objects, RPSL, whois, routing registry, IRRToolSet.
The RIPE database.
Automating BGP configuration
Automation tools, Bogon lists, tracking bogon lists, HTTP, Peering, routing registries, DNS.
Communities
What is a community? Community names, communities for: peer types and geography. RFC 1998, default communities.
Setting local preference on other routers.
Route servers
What are route servers? LINX route servers, route server policy control, What are route collectors, Looking glasses.
Setting up and working with a route server.
Peer relationships
IBGP, EBGP, next hop self, advertising routes into/out of BGP, synchronisation.
IBGP, troubleshooting a large BGP network.
Route reflectors and confederations
Full mesh IBGP, Route reflectors, RR configuration and design, confederations, migration issues.
RR configuration.
BGP architectures
Stub vs. transit AS, when to use BGP, multihoming strategies and issues, default routes. Multihop EBGP, load balancing.
Multihoming.
BGP security
RFC 7454, security steps, BGP TTL security, filters, RPKI, ROAs, rsync, rrdp, validators. A secure BGP template.
RPKI prefix validation.
Join our public courses in our Denmark facilities. Private class trainings will be organized at the location of your preference, according to your schedule.