Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 201
AS Path, Next Hop
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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 *> 7.0.0.0/29 *> 7.0.0.0/30 *> 9.2.0.0/16 Next Hop 10.114.8.33 10.114.8.33 10.114.8.33 Metric 0 0 10 LocPrf 0 0 0 Weight 18508 18508 18508 Path ? ? 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. 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 waiting for a speaker to advertise. Border Gateway Protocol IPv4 (BGPv4) 201
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1,163
-
1,164
-
1,165
-
1,166
-
1,167
-
1,168
-
1,169
-
1,170
-
1,171
-
1,172
-
1,173
-
1,174
-
1,175
-
1,176
-
1,177
-
1,178
-
1,179
-
1,180
-
1,181
-
1,182
-
1,183
-
1,184
-
1,185
-
1,186
-
1,187
-
1,188
-
1,189
-
1,190
-
1,191
-
1,192
-
1,193
-
1,194
-
1,195
-
1,196
-
1,197
-
1,198
-
1,199
-
1,200
-
1,201
-
1,202
-
1,203
-
1,204
-
1,205
-
1,206
-
1,207
-
1,208
-
1,209
-
1,210
-
1,211
-
1,212
-
1,213
-
1,214
-
1,215
-
1,216
-
1,217
-
1,218
-
1,219
-
1,220
-
1,221
-
1,222
-
1,223
-
1,224
-
1,225
-
1,226
-
1,227
-
1,228
-
1,229
-
1,230
-
1,231
-
1,232
-
1,233
-
1,234
-
1,235
-
1,236
-
1,237
-
1,238
-
1,239
-
1,240
-
1,241
-
1,242
-
1,243
-
1,244
-
1,245
-
1,246
-
1,247
-
1,248
-
1,249
-
1,250
-
1,251