In 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
AS Path
The AS path is the list of all ASs that all the prefixes listed in the update have passed through.
The local AS number is added by the BGP speaker when advertising to a eBGP neighbor.
NOTE: Any update that contains the AS path number 0 is valid.
The AS path is shown in the following example. The origin attribute is shown following the AS path
information (shown in bold).
Example of Viewing AS Paths
Dell#show ip bgp paths
Total 30655 Paths
Address Hash Refcount Metric
Path
0x4014154 0 3 18508
701 3549 19421 i
0x4013914 0 3 18508
701 7018 14990 i
0x5166d6c 0 3 18508
209 4637 1221 9249 9249 i
0x5e62df4 0 2 18508
701 17302 i
0x3a1814c 0 26 18508
209 22291 i
0x567ea9c 0 75 18508
209 3356 2529 i
0x6cc1294 0 2 18508
209 1239 19265 i
0x6cc18d4 0 1 18508
701 2914 4713 17935 i
0x5982e44 0 162 18508
209 i
0x67d4a14 0 2 18508
701 19878 ?
0x559972c 0 31 18508
209 18756 i
0x59cd3b4 0 2 18508
209 7018 15227 i
0x7128114 0 10 18508
209 3356 13845 i
0x536a914 0 3 18508
209 701 6347 7781 i
0x2ffe884 0 1 18508
701 3561 9116 21350 i
Next Hop
The next hop is the IP address used to reach the advertising router.
For EBGP neighbors, the next-hop address is the IP address of the connection between the neighbors.
For IBGP, the EBGP next-hop address is carried into the local AS. A next hop attribute is set when a BGP
speaker advertises itself to another BGP speaker outside its local AS and when advertising routes within
an AS. The next hop attribute also serves as a way to direct traffic to another BGP speaker, rather than
Border Gateway Protocol IPv4 (BGPv4)
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Summary of Contents for S4820T
Page 1: ...Dell Configuration Guide for the S4820T System 9 8 0 0 ...
Page 282: ...Dell 282 Control Plane Policing CoPP ...
Page 622: ...Figure 81 Configuring Interfaces for MSDP 622 Multicast Source Discovery Protocol MSDP ...
Page 623: ...Figure 82 Configuring OSPF and BGP for MSDP Multicast Source Discovery Protocol MSDP 623 ...
Page 629: ...Figure 86 MSDP Default Peer Scenario 2 Multicast Source Discovery Protocol MSDP 629 ...
Page 630: ...Figure 87 MSDP Default Peer Scenario 3 630 Multicast Source Discovery Protocol MSDP ...
Page 751: ...10 11 5 2 00 00 05 00 02 04 Member Ports Te 1 2 1 PIM Source Specific Mode PIM SSM 751 ...
Page 905: ...Figure 112 Single and Double Tag First byte TPID Match Service Provider Bridging 905 ...
Page 979: ...6 Member not present 7 Member not present Stacking 979 ...
Page 981: ...storm control Storm Control 981 ...
Page 1103: ...Figure 134 Setup OSPF and Static Routes Virtual Routing and Forwarding VRF 1103 ...