Avocent Cyclades-PR2000 installation manual Parameter, Description

Cyclades-PR2000

STEP TWO

The neighbor menu identifies the routers inside and outside the AS that will communicate with the router via BGP-

4.Each update message exchanged between routers contains path attributes. How these path attributes are manipulated by the router when routes are received or sent to each neighbor is determined here.

CONFIG=>IP=>BGP4=>NEIGHBOR=>ADD

Parameter	Description
Name	A string to facilitate identification of the Neighbor. In the example above, the names
	Popeye and Brutus could be used.
IP Address	The IP address at the other end of the connection. For AS 747, the value is
	100.100.100.2.
Description	Another string to identify the Neighbor.
AS Number	The AS number assigned to the neighbor.
Source IP Address	When this number is set, the protocol accepts TCP/BGP connections only when the
	destination IP is this value. For Popeye, the value would be 100.100.100.1.
Passive	Causes the router to not initiate BGP connections with this neighbor.
Transparent-AS	Yes causes the router to NOT include its own AS number in the "AS Path" path
	attribute for update messages sent to this neighbor.
Transparent-NextHop	Yes causes the router to NOT alter the "NextHop" path attribute for update messages
	sent to this neighbor.
NextHop Self	Yes causes the router to change the NextHop path attribute for update messages sent
	to this neighbor. The value is replaced by the Source IP Address set above.
Route Reflector Client	Indicates that this router is a route reflector and the neighbor is a route reflector client.
Weight	Indicates the relative importance of the routes received from this neighbor. Routes
	with greater weights are chosen over routes with lesser weights.
Maximum-Prefix	When set, indicates the maximum number of routes that the router will accept in a
	single update message from this router.
Holdtime	When a message is not received from this neighbor for the holdtime, the neighbor is
	considered inactive.
This table is continued.

Chapter 9 - Routing Protocols 79