Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 244
EXEC Privilege mode, AS Numbers
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command, the replay and update process is triggered only if a route-refresh request is not negotiated with the peer. If the request is indeed negotiated (after execution of clear ip bgp soft in), BGP sends a route-refresh request to the neighbor and receives all of the peer's updates. To use soft reconfiguration (or soft reset) without preconfiguration, both BGP peers must support the soft route refresh capability, which is advertised in the open message sent when the peers establish a TCP session. To determine whether a BGP router supports this capability, use the show ip bgp neighbors command. If a router supports the route refresh capability, the following message displays: Received route refresh capability from peer. If you specify a BGP peer group by using the peer-group-name argument, all members of the peer group inherit the characteristic configured with this command. • Clear all information or only specific details. EXEC Privilege mode clear ip bgp {* | neighbor-address | AS Numbers | ipv4 | peer-group-name} [soft [in | out]] • *: Clears all peers. • neighbor-address: Clears the neighbor with this IP address. • AS Numbers: Peers' AS numbers to be cleared. • ipv4: Clears information for the IPv4 address family. • peer-group-name: Clears all members of the specified peer group. • Enable soft-reconfiguration for the BGP neighbor specified. CONFIG-ROUTER-BGP mode neighbor {ip-address | peer-group-name} soft-reconfiguration inbound BGP stores all the updates received by the neighbor but does not reset the peer-session. Entering this command starts the storage of updates, which is required to do inbound soft reconfiguration. Outbound BGP soft reconfiguration does not require inbound soft reconfiguration to be enabled. Example of Soft-Reconfigration of a BGP Neighbor The example enables inbound soft reconfiguration for the neighbor 10.108.1.1. All updates received from this neighbor are stored unmodified, regardless of the inbound policy. When inbound soft reconfiguration is done later, the stored information is used to generate a new set of inbound updates. Dell>router bgp 100 neighbor 10.108.1.1 remote-as 200 neighbor 10.108.1.1 soft-reconfiguration inbound Border Gateway Protocol IPv4 (BGPv4) 244
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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