White Papers

Table Of Contents
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Added the ipv4 multicast and ipv6 unicast parameters.
9.4.(0.0) Added support for VRF.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage
Information
The following describes the show ip bgp flap command shown in the following example.
Field Description
Network Displays the network ID to which the route is flapping.
From Displays the IP address of the neighbor advertising the flapping route.
Flaps Displays the number of times the route flapped.
Duration Displays the hours:minutes:seconds since the route first flapped.
Reuse Displays the hours:minutes:seconds until the flapped route is available.
Path Lists all the ASs the flapping route passed through to reach the destination
network.
Example
DellEMC# show ip bgp flap-statistics
BGP local RIB : Routes to be Added 0, Replaced 0, Withdrawn 0
BGP local router ID is 192.168.11.5
Status codes: s suppressed, S stale, d dampened, h history, * valid, > best
Path source: I - internal, a - aggregate, c - confed-external, r - redistributed
n - network, D - denied, S - stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network From Flaps Duration Reuse Path
h 77.0.0.0/24 172.16.0.2 1 00:00:03 00:00:00
d 55.0.0.0/24 172.16.0.2 3 00:00:25 00:30:44 200 i
*> 66.0.0.0/24 172.16.0.2 1 00:00:23 00:00:00 200 i
*>n 66.66.77.77/32 0.0.0.0 0 32768 i
DellEMC#
show ip bgp inconsistent-as
View routes with inconsistent originating autonomous system (AS) numbers; that is, prefixes that are announced from the same
neighbor AS but with a different AS-Path.
Syntax
show ip bgp [vrf vrf-name] [ipv4 unicast] inconsistent-as
Border Gateway Protocol 429