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BGP and BGP4+ Introduction
Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
C613-50032-01 REV D AlliedWare Plus
TM
Operating System - Software Version 5.4.3-2.6 1.21
How to create and configure a Prefix List for BGP or
BGP4+
To create a prefix list for BGP, use the following command in Global Configuration mode.
Note you can add individual prefix list entries to a defined prefix list as well.
The optional ge and le keywords can be used to specify the range of the prefix length to
be matched for prefixes that are more specific than the network/length parameter. An
exact match is assumed when neither ge nor le is specified.
You can specify sequence values for prefix list entries in any increments you want. If you
specify the sequence values in increments of 1, you cannot insert additional entries into
the prefix list. If you choose very large increments, you could run out of sequence values.
How to delete Prefix List Entries
To remove a prefix list, and optionally specific entries, use the following commands as
appropriate in Global Configuration mode:
The sequence number of an entry is optional when you delete the prefix list entry.
If you omit the sequence number then all entries are deleted for the prefix list.
awplus(config)#
ip prefix-list <list-name>
[seq <1-429496725>] {deny|
permit} {any|<ip-prefix>} [ge
<0-32>] [le <0-32>]
This command creates an IPv4 prefix list with the name
specified for the <list-name> parameter. To create a prefix
list you must enter at least one permit or deny clause. Once an
IPv4 prefix list is created, this command creates a prefix list
entry, and assigns a sequence number to the IPv4 prefix list
entry.
awplus(config)#
ipv6 prefix-list <list-name>
[seq <1-429496725>] {deny|
permit} {any|<ipv6-prefix>} [ge
<0-128>] [le <0-128>]
This command creates an IPv6 prefix list with the name
specified for the <list-name> parameter. To create a prefix
list you must enter at least one permit or deny clause. Once an
IPv6 prefix list is created, this command creates a prefix list
entry and assigns a sequence number to the IPv6 prefix list
entry.
awplus(config)#
no ip prefix-list <list-name>
[seq <1-429496725>]
This command removes an IPv4 prefix list with the name
specified for the required <list-name> parameter and the
sequence number specified in the range <1-429496725>.
awplus(config)#
no ipv6 prefix-list <list-name>
[seq <1-429496725>]
This command removes an IPv6 prefix list with the name
specified for the <list-name> parameter and the sequence
number specified in the range <1-429496725>.