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11.14.1 Multiple instance

To enable multiple view function of bgpd, you must turn on multiple instance feature beforehand.

Command: bgp multiple-instance

Enable BGP multiple instance feature. After this feature is enabled, you can make multiple BGP instances or multiple BGP views.

Command: no bgp multiple-instance

Disable BGP multiple instance feature. You can not disable this feature when BGP multiple instances or views exist.

When you want to make configuration more Cisco like one,

Command: bgp config-type cisco

Cisco compatible BGP configuration output.

When bgp config-type cisco is specified,

“no synchronization” is displayed. “no auto-summary” is displayed.

“network” and “aggregate-address” argument is displayed as “A.B.C.D M.M.M.M”

Quagga: network Cisco: network

Quagga: aggregate-address Cisco: aggregate-address

Community attribute handling is also different. If there is no configuration is specified community attribute and extended community attribute are sent to neighbor. When user manually disable the feature community attribute is not sent to the neighbor. In case of bgp config-type cisco is specified, community attribute is not sent to the neighbor by default. To send community attribute user has to specify neighbor A.B.C.D send-community command.

router bgp 1
 neighbor remote-as 1
 no neighbor send-community
router bgp 1
 neighbor remote-as 1
 neighbor send-community
Command: bgp config-type zebra

Quagga style BGP configuration. This is default.