Dell BigIron RX Series, Руководство по настройке

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818 BigIron RX Series Configuration Guide
53-1002253-01
Filtering
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NOTE
The syntax related to soft reconfiguration is shown. For complete command syntax, refer to
“Dynamically refreshing routes” on page 819.
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. This includes 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.
The routes displayed by the command are the routes that the device’s BGP4 policies filtered out.
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> ]
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 above 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 the routes permitted by the prefix
list are displayed.
NOTE
The syntax for displaying filtered routes is shown. For complete command syntax, refer to “Displaying
the BGP4 route table” on page 841.
Displaying all the routes received from the neighbor
To display all the route information received in route updates from a neighbor since you enabled
soft reconfiguration, enter a command such as the following at any level of the CLI.
BigIron RX# 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 S:SUPPRESSED F:FILTERED
Prefix Next Hop Metric LocPrf Weight Status
1 3.0.0.0/8 192.168.4.106 100 0 EF
AS_PATH: 65001 4355 701 80
2 4.0.0.0/8 192.168.4.106 100 0 EF
AS_PATH: 65001 4355 1
3 4.60.212.0/22 192.168.4.106 100 0 EF
AS_PATH: 65001 4355 701 1 189