D-Link DXS-3600 Series Cli Reference Manual page 187

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
Switch(config)# router bgp 65100
Switch(config-router)# address-family ipv4 unicast
Switch(config-router)# neighbor 10.10.10.10 capability graceful-restart
Switch(config-router)#
11-40 neighbor capability orf prefix-list
This command is used to enable the advertisement of the ORF to a neighbor. Use the no form of the
command to disable ORF.
neighbor {IP-ADDRESS | PEER-GROUP-NAME} capability orf prefix-list {receive | send | both}
no neighbor {IP-ADDRESS | PEER-GROUP-NAME} capability orf prefix-list {receive | send | both}
Parameters
IP-ADDRESS
PEER-GROUP-NAME
receive
send
both
Default
By default, this option is disabled.
Command Mode
Router Configuration Mode.
Address Family Configuration Mode (IPv4 unicast, VPNv4 and VRF).
Command Default Level
Level: 12.
Usage Guideline
The user can use the BGP ORF (Outbound Route Filtering) capability to reduce the number of prefixes
exchanged with the peer. Typically, the command must be configured in pair on the local router and the
remote router. The function can operate in one direction or in both directions. When it operates in one
direction, the prefix list used as for the ingress filtering on one router will be sent to the peer router and
act as the egress prefix list filtering applied to routes to be sent out from the peer router. The first router
should be configured as send mode and the peer router should be configured as receive mode.
When the ingress prefix list on the first router is changed, to reflect the change to the peer router, the user
should issue the clear bgp in prefix-list command on the peer router.
Example
In the following example, router A (10.20.30.5) is configured with ingress prefix list and is enabled for
send mode and router B is enabled for receive mode. Router B (10.20.40.10) installs the egress prefix list
from router by the clear bgp in prefix-filter command for the neighbor session.
Router A:
Switch# configure terminal
Switch(config)# router bgp 65100
Specifies the IP address of the neighbor peer.
Specifies the name of a Border Gateway Protocol (BGP) peer group.
(Optional) Specifies to enable the receive mode of the ORF capability.
(Optional) Specifies to enable the send mode of the ORF capability.
(Optional) Specifies to enable both the send and receive mode of the
ORF capability.
182