White Papers

Table Of Contents
Field Description
i = internal route entry
a = aggregate route entry
c = external confederation route entry
n = network route entry
r = redistributed route entry
Next Hop Displays the next hop address of the BGP router. If 0.0.0.0 is listed in this column,
then local routes exist in the routing table.
Metric Displays the BGP routes metric, if assigned.
LocPrf Displays the BGP LOCAL_PREF attribute for the route.
Weight Displays the routes weight.
Path Lists all the ASs the route passed through to reach the destination network.
Example
Dell#show ip bgp filter-list hello
BGP table version is 80227, local router ID is 120.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best
Path source: I - internal, a - aggregate, c - confed-external, r -
redistributed, n -
network
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* I 6.1.5.0/24 192.100.11.2 20000 9999 0 ?
* I 192.100.8.2 20000 9999 0 ?
* I 192.100.9.2 20000 9999 0 ?
* I 192.100.10.2 20000 9999 0 ?
*>I 6.1.5.1 20000 9999 0 ?
* I 6.1.6.1 20000 9999 0 ?
* I 6.1.20.1 20000 9999 0 ?
* I 6.1.6.0/24 192.100.11.2 20000 9999 0 ?
* I 192.100.8.2 20000 9999 0 ?
* I 192.100.9.2 20000 9999 0 ?
* I 192.100.10.2 20000 9999 0 ?
*>I 6.1.5.1 20000 9999 0 ?
* I 6.1.6.1 20000 9999 0 ?
* I 6.1.20.1 20000 9999 0 ?
* I 6.1.20.0/24 192.100.11.2 20000 9999 0 ?
* I 192.100.8.2 20000 9999 0 ?
* I 192.100.9.2 20000 9999 0 ?
* I 192.100.10.2 20000 9999 0 ?
Dell#
show ip bgp flap-statistics
View flap statistics on BGP routes.
Syntax
show ip bgp [ipv4 unicast] flap-statistics [ip-address [mask]] [filter-list
as-path-name] [regexp regular-expression]
Parameters
ipv4 unicast
(OPTIONAL) Enter the keywords ipv4 unicast to view information only related
to ipv4 unicast routes.
ip-address (OPTIONAL) Enter the IP address (in dotted decimal format) of the BGP network
to view information only on that network.
mask
(OPTIONAL) Enter the network mask (in slash prefix (/x) format) of the BGP
network address.
filter-list
as-
path-name
(OPTIONAL) Enter the keyword filter-list then the name of a configured
AS-PATH ACL. The range is 140 characters.
314 Border Gateway Protocol IPv4 (BGPv4)