Defining neighbor distribute lists – Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 User Manual
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Brocade ICX 6650 Layer 3 Routing Configuration Guide
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Filtering
The deny | permit parameter specifies the action the software takes if a neighbor route is in this
prefix list.
The prefix-list matches only on this network unless you use the ge ge-value or le le-value
parameters. (See below.)
The network-addr/mask-bits parameter specifies the network number and the number of bits in
the network mask.
You can specify a range of prefix length for prefixes that are more specific than
network-addr/mask-bits.
•
If you specify only ge ge-value, then the mask-length range is from ge-value to 32.
•
If you specify only le le-value, then the mask-length range is from length to le-value.
The ge-value or le-value you specify must meet the following condition.
length < ge-value <= le-value <= 32
If you do not specify ge ge-value or le le-value, the prefix list matches only on the exact network
prefix you specify with the network-addr/mask-bits parameter.
For the syntax of the neighbor command shown in the example above, refer to
Defining neighbor distribute lists
A neighbor distribute list is a list of BGP4 address filters or ACLs that filter the traffic to or from a
neighbor. To configure a neighbor distribute list, use either of the following methods.
To configure a distribute list that uses ACL 1, enter a command such as the following.
Brocade(config-bgp-router)#neighbor 10.10.10.1 distribute-list 1 in
This command configures the Layer 3 switch to use ACL 1 to select the routes that the Layer 3
switch will accept from neighbor 10.10.10.1.
Syntax: neighbor ip-addr distribute-list name-or-num in | out
The ip-addr parameter specifies the neighbor.
The name-or-num parameter specifies the name or number of a standard, extended, or named
ACL.
The in | out parameter specifies whether the distribute list applies to inbound or outbound routes:
•
in – controls the routes the Layer 3 switch will accept from the neighbor.
•
out – controls the routes sent to the neighbor.
NOTE
The command syntax shown above is new. However, the neighbor ip-addr distribute-list in | out num
command (where the direction is specified before the filter number) is the same as in earlier
software releases. Use the new syntax when you are using an IP ACL with the distribute list. Use the
old syntax when you are using a BGP4 address filter with the distribute list.