network_stuff:cisco:bgp_notes
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| network_stuff:cisco:bgp_notes [2017/02/13 22:09] – jotasandoku | network_stuff:cisco:bgp_notes [2023/11/02 14:38] (current) – external edit 127.0.0.1 | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | **OUTPUT OF BGP TABLE** (triplet and parenthesis meaning):\\ | ||
| **show ip bgp < | **show ip bgp < | ||
| x.x.x.x from y.y.y.y (RID) \\ | x.x.x.x from y.y.y.y (RID) \\ | ||
| Line 4: | Line 5: | ||
| * y.y.y.y IP address of the router' | * y.y.y.y IP address of the router' | ||
| * RID: router-id of the spoke sending the update | * RID: router-id of the spoke sending the update | ||
| + | Listing all routes and filtering on AS-PATH: | ||
| + | show ip bgp regexp ^$ # test this w/ internal networks | ||
| + | ---- | ||
| + | **ASN PREPENDING** | ||
| + | ip as-path access-list 1 permit ^$ # this indicates my own local routes | ||
| + | route-map BGP100_SANTANDER_TO_BGP200_FR01_DMZR01_GRE permit 10 | ||
| + | match ip address prefix-list BGP100_SANTANDER_GRE_TO_ALL_SITES | ||
| + | set as-path prepend 65103 65103 65103 65103 65103 # | ||
| + | |||
| + | |||
| + | ---- | ||
| + | **PATH HUNTING** | ||
| + | * Undesired phenomeda. Happens because BGP is, by definition, unaware of the topology | ||
| + | * During convergence, | ||
network_stuff/cisco/bgp_notes.1487023750.txt.gz · Last modified: (external edit)
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
