Dell BigIron RX Series, Configuration Manual

Page: 1230 / 1458

1154 BigIron RX Series Configuration Guide
53-1002253-01
Displaying BGP4+ information
45
Displaying filtered-out BGP4+ routes
When you enable the soft reconfiguration feature, the switch saves all updates received from the
specified neighbor or peer group. The saved updates include those that contain routes that are
filtered out by the BGP4+ route policies in effect on the switch.
You can display a summary or more detailed information about routes that have been filtered out
by BGP4+ route policies.
To display a summary of the routes that have been filtered out by BGP4+ route policies, enter the
following command at any level of the CLI.
The routes displayed by the command are the routes that the switch’s BGP policies filtered out. The
switch 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 switch does not need to request the route
information from the neighbor, but instead uses the information in the updates.
Syntax: show ipv6 bgp filtered-routes [ <ipv6-prefix>/<prefix-length> [longer-prefixes] |
[as-path-access-list <name> ] | [prefix-list <name> ]
The <ipv6-prefix>/<prefix-length> parameter displays the specified IPv6 prefix of the destination
network only. You must specify the <ipv6-prefix> parameter in hexadecimal using 16-bit values
between colons as documented in RFC 2373. You must specify the <prefix-length> parameter as a
decimal value. A slash mark (/) must follow the <ipv6-prefix> parameter and precede the
<prefix-length> parameter.
TABLE 191 Dampened BGP4+ path information
This field... Displays...
Status codes A list of the characters the display uses to indicate the path’s status. The
status code appears in the left column of the display, to the left of each
route. The status codes are described in the command’s output. The
status column displays a “d” for each dampened route.
Network The destination network of the route.
From The IPv6 address of the advertising peer.
Flaps The number of times the path has flapped.
Since The amount of time (in hh:mm:ss) since the first flap of this route.
Reuse The amount of time (in hh:mm:ss) after which the path is available
again.
Path The AS path of the route.
BigIron RX# show ipv6 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 3000::/16 2000:4::110 100 0 EF
AS_PATH: 65001 4355 701 80
2 4000::/16 2000:4::110 100 0 EF
AS_PATH: 65001 4355 1
3 5000::/16 2000:4::110 100 0 EF
AS_PATH: 65001 4355 701 1 189