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BigIron RX Series Configuration Guide
53-1001810-01
Displaying BGP4 information
26
Displaying route flap dampening statistics
To display route dampening statistics or all the dampened routes, enter the following command at
any level of the CLI.
Syntax: show ip bgp flap-statistics [regular-expression
<regular-expression>
|
<address>
<mask>
[longer-prefixes] | neighbor
<ip-addr>
| filter-list
<num>
...]
The regular-expression
<regular-expression>
parameter is a regular expression. The regular
expressions are the same ones supported for BGP4 AS-path filters. Refer to
“Using regular
expressions”
on page 794.
The
<address> <mask>
parameter specifies a particular route. If you also use the optional
longer-prefixes parameter, then all statistics for routes that match the specified route or have a
longer prefix than the specified route are displayed. For example, if you specify 209.157.0.0 longer,
then all routes with the prefix 209.157 or that have a longer prefix (such as 209.157.22) are
displayed.
The neighbor
<ip-addr>
parameter displays route flap dampening statistics only for routes learned
from the specified neighbor. You also can display route flap statistics for routes learned from a
neighbor by entering the following command: show ip bgp neighbor
<ip-addr>
flap-statistics.
The filter-list
<num>
parameter specifies one or more filters. Only the routes that have been
dampened and that match the specified filters are displayed.
This display shows the following information.
TABLE 127
Route flap dampening statistics
This field...
Displays...
Total number of flapping routes
The total number of routes in the BigIron RX’s BGP4 route table that
have changed state and thus have been marked as flapping routes.
Status code
Indicates the dampening status of the route, which can be one of the
following:
•
> – This is the best route among those in the BGP4 route table to
the route’s destination.
•
d – This route is currently dampened, and thus unusable.
•
h – The route has a history of flapping and is unreachable now.
•
* – The route has a history of flapping but is currently usable.
Network
The destination network of the route.
From
The neighbor that sent the route to the BigIron RX.
Flaps
The number of flaps (state changes) the route has experienced.
Since
The amount of time since the first flap of this route.
BigIron RX# show ip bgp flap-statistics
Total number of flapping routes: 414
Status Code >:best d:damped h:history *:valid
Network
From
Flaps Since
Reuse
Path
h> 192.50.206.0/23
166.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 701
h> 203.255.192.0/20
166.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 7018
h> 203.252.165.0/24
166.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 7018
h> 192.50.208.0/23
166.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 701
h> 133.33.0.0/16
166.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 701
*> 204.17.220.0/24
166.90.213.77
1
0 :1 :4 0 :0 :0 65001 4355 701 62
Summary of Contents for Brocade DCX
Page 40: ...xl BigIron RX Series Configuration Guide 53 1001810 01 ...
Page 72: ...lxxii BigIron RX Series Configuration Guide 53 1001810 01 ...
Page 88: ...16 BigIron RX Series Configuration Guide 53 1001810 01 Searching and filtering output 1 ...
Page 300: ...228 BigIron RX Series Configuration Guide 53 1001810 01 Displaying IP information 7 ...
Page 318: ...246 BigIron RX Series Configuration Guide 53 1001810 01 Deploying a LAG 8 ...
Page 418: ...346 BigIron RX Series Configuration Guide 53 1001810 01 SuperSpan 12 ...
Page 482: ...410 BigIron RX Series Configuration Guide 53 1001810 01 MRP CLI example 14 ...
Page 506: ...434 BigIron RX Series Configuration Guide 53 1001810 01 Displaying VSRP information 15 ...
Page 582: ...510 BigIron RX Series Configuration Guide 53 1001810 01 Viewing Layer 2 ACLs 20 ...
Page 634: ...562 BigIron RX Series Configuration Guide 53 1001810 01 Troubleshooting ACLs 21 ...
Page 642: ...570 BigIron RX Series Configuration Guide 53 1001810 01 Trunk formation 22 ...
Page 746: ...674 BigIron RX Series Configuration Guide 53 1001810 01 Displaying RIP filters 24 ...
Page 808: ...736 BigIron RX Series Configuration Guide 53 1001810 01 Displaying OSPF information 25 ...
Page 938: ...866 BigIron RX Series Configuration Guide 53 1001810 01 Displaying MBGP information 27 ...
Page 950: ...878 BigIron RX Series Configuration Guide 53 1001810 01 Using secure copy 28 ...
Page 988: ...916 BigIron RX Series Configuration Guide 53 1001810 01 Clearing IS IS information 29 ...
Page 1054: ...982 BigIron RX Series Configuration Guide 53 1001810 01 Sample 802 1x configurations 33 ...
Page 1108: ...1036 BigIron RX Series Configuration Guide 53 1001810 01 sFlow 39 ...
Page 1190: ...1118 BigIron RX Series Configuration Guide 53 1001810 01 Displaying RIPng information 44 ...
Page 1270: ...1198 BigIron RX Series Configuration Guide 53 1001810 01 Displaying ACLs 47 ...
Page 1310: ...1238 BigIron RX Series Configuration Guide 53 1001810 01 Displaying OSPFv3 information 48 ...
Page 1382: ...1310 BigIron RX Series Configuration Guide 53 1001810 01 Commands That Require a Reload D ...
Page 1435: ...BigIron RX Series Configuration Guide 1363 53 1001810 01 VSRP E ...
Page 1436: ...1364 BigIron RX Series Configuration Guide 53 1001810 01 VSRP E ...