BGP and MULTI-HOMING tutorial

Avi Freedman freedman at netaxs.com
Thu Apr 10 22:35:09 UTC 1997


I've posted a BGP and MULTI-HOMING tutorial I just wrote.  It was going
to be a Boardwatch column, but it turned out a bit too long and too 
advanced for that.

Please take a look at http://www.netaxs.com/~freedman/bgp.html and
share comments and thoughts...

It's about 89k so I won't post it full-text to the list.  Unfortunately
it's just Part 1 of maybe 10 parts that can and probably will be written
about routing in the next few months.

Please keep comments redirected to inet-access and NOT to nanog.

Here's a table of contents:

BGP 
A WARNING 
PREREQUISITES 
BGP ROUTING: INTERNAL (INTERIOR) AND EXTERNAL 
SO WHY IS BGP INTERESTING? 
BEING "CONNECTED" TO THE INTERNET 
HARDWARE AND SOFTWARE FOR SPEAKING BGP 
PEERING SESSIONS AND ASNs: PART I 
WHAT DO YOU DO WITH BGP? 
PEERING SESSIONS 
eBGP vs. iBGP 
BGP AND THE SINGLE-HOMED 
AS-PATHS 
AS-PATH LENGTH AND BGP ROUTE SELECTION 
AS-PATH ACCESS LISTS (FILTERS) 
ENTERING, MODIFYING, AND DELETING as-path access-lists 
BGP METRICS (ATTRIBUTES) AND ROUTE SELECTION: INTRODUCTION 
BGP PATH SELECTION PROCESS ACCORDING TO CISCO 
BGP ATTRIBUTE TYPES 
EGP vs. IGP 
WHAT IS ROUTE FLAP AND WHY IS IT BAD? 
WHAT TO KEEP IN MIND WHEN CONFIGURING BGP 
BGP AND PEERING 
INTERNET CONNECTIVITY WITHOUT BGP 
BGP AND THE SINGLE-HOMED 
BGP AND THE MULTI-HOMED 
MULTI-HOMING AND LOAD-BALANCING 
HOW TO ANNOUNCE YOUR NETWORKS 
BEING ADVERTISED BY MULTIPLE PROVIDERS WITHOUT PI-SPACE 
CONTROLLING OUTGOING DATA FLOW: "FULL ROUTING" 
CONTROLLING OUTGOING DATA FLOW: "PARTIAL ROUTING": "CUSTOMER ROUTES ONLY" 
SO WHAT'S TO BE DONE? 
AS-PATH PADDING 
QUESTIONS AND COMMENTS 
THANKS TO 
TO BE DONE 

Sidebars 

Sidebar on Cisco BGP commands
Sidebar on next-hop-self 
Sidebar on Outgoing Data Flow Control Without BGP 

Thanks,

Avi






More information about the NANOG mailing list