This command enables soft reconfiguration for updates received from 10.10.200.102. The software dynamically resets the session with
the neighbor, then retains all route updates from the neighbor following the reset.
Syntax:
[no] neighbor
ip-addr
|
peer-group-name
soft-reconfiguration
inbound
NOTE
The syntax related to soft reconfiguration is
shown.
Placing a policy change into effect
To place policy changes into effect, enter a command such as the following.
device(config-bgp)# clear ip bgp neighbor 10.10.200.102 soft in
This command updates the routes by comparing the route policies against the route updates that the device has stored. The command
does not request additional updates from the neighbor or otherwise affect the session with the neighbor.
Syntax:
clear ip bgp neighbor
ip-addr
|
peer-group-name
soft
in
NOTE
If you do not specify
in
, the command applies to both inbound and outbound updates.
NOTE
The syntax related to soft reconfiguration is
shown.
Displaying the filtered routes received from the neighbor or peer group
When you enable soft reconfiguration, the device saves all updates received from the specified neighbor or peer group, including updates
that contain routes that are filtered out by the BGP4 route policies in effect on the device. To display the routes that have been filtered
out, enter the following command at any level of the CLI.
device# show ip bgp filtered-routes
Searching for matching routes, use ^C to quit...
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED
E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH m:NOT-INSTALLED-MULTIPATH
S:SUPPRESSED F:FILTERED s:STALE
Prefix Next Hop MED LocPrf Weight Status
1 10.3.0.0/8 192.168.4.106 100 0 EF
AS_PATH: 65001 4355 701 80
2 10.4.0.0/8 192.168.4.106 100 0 EF
AS_PATH: 65001 4355 1
3 10.60.212.0/22 192.168.4.106 100 0 EF
AS_PATH: 65001 4355 701 1 189
The routes displayed are the routes that were filtered out by the BGP4 policies on the device. The device did not place the routes in the
BGP4 route table, but did keep the updates. If a policy change causes these routes to be permitted, the device does not need to request
the route information from the neighbor, but instead uses the information in the updates.
Syntax:
show ip bgp filtered-routes
[
ip-addr
] | [
as-path-access-list
num
] | [
detail
] | [
prefix-list
string
] [
longer-prefixes
]
The
ip-addr
parameter specifies the IP address of the destination network.
The
as-path-access-list
num
parameter specifies an AS-path ACL. Only the routes permitted by the AS-path ACL are displayed.
The
detail
parameter displays detailed information for the routes. (The example shows summary information.) You can specify any of the
other options after
detail
to further refine the display request.
The
prefix-list
string
parameter specifies an IP prefix list. Only routes permitted by the prefix list are displayed.
Displaying BGP4 information
FastIron Ethernet Switch Layer 3 Routing
470
53-1003627-04
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