Closing Or Resetting A Neighbor Session - Dell PowerConnect B-FCXs Configuration Manual

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Updating route information and resetting a neighbor session
PowerConnect#show ip bgp neighbors 10.4.0.2
1

Closing or resetting a neighbor session

You can close a neighbor session or resend route updates to a neighbor.
If you make changes to filters or route maps and the neighbor does not support dynamic route
refresh, use the following methods to ensure that neighbors contain only the routes you want them
to contain:
•
•
1096
IP Address: 10.4.0.2, AS: 5 (EBGP), RouterID: 100.0.0.1
Description: neighbor 10.4.0.2
State: ESTABLISHED, Time: 0h1m0s, KeepAliveTime: 0, HoldTime: 0
PeerGroup: pg1
Mutihop-EBGP: yes, ttl: 1
RouteReflectorClient: yes
SendCommunity: yes
NextHopSelf: yes
DefaultOriginate: yes (default sent)
MaximumPrefixLimit: 90000
RemovePrivateAs: : yes
RefreshCapability: Received
Route Filter Policies:
Distribute-list: (out) 20
Filter-list: (in) 30
Prefix-list: (in) pf1
Route-map: (in) setnp1
Messages: Open
Sent : 1
Received: 1
Last Update Time: NLRI
Tx: 0h0m59s
Last Connection Reset Reason:Unknown
Notification Sent:
Notification Received: Unspecified
TCP Connection state: ESTABLISHED
Byte Sent: 115, Received: 492
Local host: 10.4.0.1, Local
Remote host: 10.4.0.2, Remote Port: 8053
ISentSeq: 52837276
TotSent: 116
IRcvSeq: 2155052043
TotalRcv: 493
SendQue:
If you close a neighbor session, the Layer 3 Switch and the neighbor clear all the routes they
learned from each other. When the Layer 3 Switch and neighbor establish a new BGP4
session, they exchange route tables again. Use this method if you want the Layer 3 Switch to
relearn routes from the neighbor and resend its own route table to the neighbor.
If you use the soft-outbound option, the Layer 3 Switch compiles a list of all the routes it would
normally send to the neighbor at the beginning of a session. However, before sending the
updates, the Layer 3 Switch also applies the filters and route maps you have configured to the
list of routes. If the filters or route maps result in changes to the list of routes, the Layer 3
(out) setnp2
Update KeepAlive Notification Refresh-Req
1 1 0
8 1 0
Withdraw
---
Unspecified
Port: 179
SendNext: 52837392
ReTrans:
RcvNext: 2155052536
DupliRcv:
0 RcvQue:
0
0
NLRI Withdraw
Rx: 0h0m59s ---
TotUnAck:
0 UnAckSeq: 52837392
SendWnd: 16384
0 RcvWnd: 16384
0 CngstWnd: 1460
PowerConnect B-Series FCX Configuration Guide
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