Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 521)

NOTE
The soft-outbound parameter updates all outbound routes by applying the new or changed filters, but
sends only the existing routes affected by the new or changed filters to the neighbor. The soft out
parameter updates all outbound routes, then sends the entire BGP4 route table for the device (Adj-RIB-
Out) to the neighbor, after changing or excluding the routes affected by the filters. Use soft-outbound if
only the outbound policy is changed.
To dynamically resend all the device BGP4 routes to a neighbor, enter a command such as the
following.
device(config-bgp)# clear ip bgp neighbor 192.168.1.170 soft out
This command applies filters for outgoing routes to the device BGP4 route table (Adj-RIB-Out), changes
or excludes routes accordingly, then sends the resulting Adj-RIB-Out to the neighbor.
NOTE
The Brocade device does not automatically update outbound routes using a new or changed outbound
policy or filter when a session with the neighbor goes up or down. Instead, the device applies a new or
changed policy or filter when a route is placed in the outbound queue (Adj-RIB-Out).To place a new or
changed outbound policy or filter into effect, you must enter a clear ip bgp neighbor command
regardless of whether the neighbor session is up or down. You can enter the command without optional
parameters or with the soft out or soft-outbound option. Either way, you must specify a parameter for
the neighbor (ip-addr, as-num , peer-group-name, or all ).
Displaying dynamic refresh information
You can use the show ip bgp neighbors command to display information for dynamic refresh
requests. For each neighbor, the display lists the number of dynamic refresh requests the device has
sent to or received from the neighbor and indicates whether the device received confirmation from the
neighbor that the neighbor supports dynamic route refresh.
The RefreshCapability field indicates whether this device has received confirmation from the neighbor
that the neighbor supports the dynamic refresh capability. The statistics in the Message Sent and
Message Received rows under Refresh-Req indicate how many dynamic refreshes have been sent to
and received from the neighbor. The statistic is cumulative across sessions.
device(config-bgp)# show ip bgp neighbor 10.4.0.2
1 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 (out) setnp2
Messages: Open Update KeepAlive Notification Refresh-Req
Sent : 1 1 1 0 0
Received: 1 8 1 0 0
Last Update Time: NLRI Withdraw NLRI Withdraw
Tx: 0h0m59s --- Rx: 0h0m59s ---
Last Connection Reset Reason:Unknown
Displaying dynamic refresh information
FastIron Ethernet Switch Layer 3 Routing Configuration Guide 521
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