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BGP and BGP4+ Commands
Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
3.76 AlliedWare Plus
TM
Operating System - Software Version 5.4.3-2.6 C613-50032-01 REV D
ip prefix-list (IPv4 Prefix List)
Use this command to create an entry for an IPv4 prefix list.
Use the no variant of this command to delete the IPv4 prefix-list entry.
Syntax ip prefix-list <list-name> [seq <1-429496725>]
{deny|permit}
{any|<ip-prefix>}
[ge <0-32>] [le <0-32>]
ip prefix-list <list-name> description <text>
ip prefix-list sequence-number
no ip prefix-list <list-name> [seq <1-429496725>]
no ip prefix-list <list-name> [description <text>]
no ip prefix-list sequence-number
Mode
Global Configuration
Usage When the device processes a prefix list, it starts to match prefixes from the top of the prefix
list, and stops whenever a permit or deny occurs. To promote efficiency, use the seq
parameter and place common permits or denials towards the top of the list. If you do not
use the seq parameter, the sequence values are generated in a sequence of 5.
The parameters ge and le specify the range of the prefix lengths to be matched. When
setting these parameters, set the le value to be less than 32, and the ge value to be less
than or equal to the le value and greater than the ip-prefix mask length.
Prefix lists implicitly exclude prefixes that are not explicitly permitted in the prefix list. This
means if a prefix that is being checked against the prefix list reaches the end of the prefix
list without matching a permit or deny, this prefix will be denied.
Parameter Description
<list-name> Specifies the name of a prefix list.
seq <1-429496725> Sequence number of the prefix list entry.
deny Specifies that the prefixes are excluded from the list.
permit Specifies that the prefixes are included in the list.
<ip-prefix> Specifies the IPv4 address and length of the network
mask in dotted decimal in the format A.B.C.D/M.
any Any prefix match. Same as 0.0.0.0/0 le 32.
ge <0-32> Specifies the minimum prefix length to be matched.
le <0-32> Specifies the maximum prefix length to be matched.
description <text> Text description of the prefix list.
sequence-number Specify sequence numbers included or excluded in prefix
list.