Brocade Multi-Service IronWare Routing Configuration Guide Manual de usuario descargar pdf (Pagina 125)

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Multi-Service IronWare Routing Configuration Guide 97

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Filtering

Syntax: [no] neighbor ip-addr | peer-group-name capability orf prefixlist [send | receive]

The ip-addr | peer-group-name parameters specify the IP address of a neighbor or the name of a

peer group of neighbors.

The send | receive parameters specify the support you are enabling:

• send – The device sends the IP prefix lists to the neighbor.

• receive – The device accepts filters from the neighbor.

If you do not specify the capability, both capabilities are enabled.

The prefixlist parameter specifies the type of filter you want to send to the neighbor.

NOTE

The current release supports cooperative filtering only for filters configured using IP prefix lists.

Sending and receiving ORFs

Cooperative filtering affects neighbor sessions that start after the filtering is enabled, but do not

affect sessions that are already established.

To activate cooperative filtering, reset the session with the neighbor. This is required because the

cooperative filtering information is exchanged in Open messages during the start of a session.

To place a prefix-list change into effect after activating cooperative filtering, perform a soft reset of

the neighbor session. A soft reset does not end the current session, but sends the prefix list to the

neighbor in the next route refresh message.

NOTE

Make sure cooperative filtering is enabled on the device and on the neighbor before you send the

filters.

To reset a neighbor session and send ORFs to the neighbor, enter a command such as the

following.

Brocade# clear ip /jointfilesconvert/1441120/bgp neighbor 10.2.3.4

This command resets the BGP4 session with neighbor 10.2.3.4 and sends the ORFs to the

neighbor. If the neighbor sends ORFs to the device, the device accepts them if the send capability

is enabled.

To perform a soft reset of a neighbor session and send ORFs to the neighbor, enter a command

such as the following.

Brocade# clear ip /jointfilesconvert/1441120/bgp neighbor 10.2.3.4 soft in prefix-list

Syntax: clear ip /jointfilesconvert/1441120/bgp neighbor ip-addr [soft in prefix-filter | soft in prefix-list]

If you use the soft in prefix-filter parameter, the device sends the updated IP prefix list to the

neighbor as part of its route refresh message to the neighbor.

NOTE

If the device or the neighbor is not configured for cooperative filtering, the command sends a normal

route refresh message.

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