Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

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Origin

The origin indicates the origin of the prefix, or how the prefix came into BGP. There are three origin codes: IGP, EGP, INCOMPLETE.

Origin Type	Description
IGP	Indicates the prefix originated from information learned through an interior gateway protocol.
EGP	Indicates the prefix originated from information learned from an EGP protocol, which NGP replaced.
INCOMPLETE	Indicates that the prefix originated from an unknown source.

Generally, an IGP indicator means that the route was derived inside the originating AS. EGP generally means that a route was learned from an external gateway protocol. An INCOMPLETE origin code generally results from aggregation, redistribution, or other indirect ways of installing routes into BGP.

In the Dell Networking OS, these origin codes appear as shown in the following example. The question mark (?) indicates an origin code of INCOMPLETE (shown in bold). The lower case letter (i) indicates an origin code of IGP (shown in bold).

Example of Viewing Origin Codes

Dell#show ip bgp
                                 BGP table version is 0, local router ID is 10.101.15.13
                                 Status codes: s suppressed, d damped, h history, * valid, > best
                                 Path source: I - internal, a - aggregate, c - confed-external, r - redistributed, n - network
                                 
                                 Origin codes: i - IGP, e - EGP, ? - incomplete
                                 
                                 Network     Next Hop     Metric  LocPrf  Weight  Path
                                 *> 7.0.0.0/29  10.114.8.33  0       0       18508   
                                 ?
                                 *> 7.0.0.0/30  10.114.8.33  0       0       18508   
                                 ?
                                 *> 9.2.0.0/16  10.114.8.33  10      0       18508   701 
                                 i