Setting BGP Parameters

The NMC-RX application allows you to configure the parameters for BGP neighbors.

To set the parameters for a BGP neighbor:

1. Click the Parameters tab in the Create BGP Neighbor window.

The Parameters tab moves to the front of the display.

2. In the Configured Parameters pane, activate the parameters that you want to configure.
3. Set each BGP neighbor parameter (Table 24).

 Table 24:  BGP Neighbor Parameters 

 Parameter
 Description

 Multihop

 Enable Multihop

 Select to enable a multihop connection to the neighbor. Clear to disable; default: clear.


 Multihop Time To Live

 Maximum number of hops to the neighbor; referenced only when multihop is enabled (selected); range 1-255.


 Prefix Limits
 


 Maximum Allowed

 Maximum number of routes that are accepted from this neighbor; range 1-4294967295.


 Warning Threshold 

 Limit for path count. Application logs a warning if the path count exceeds the value you set. Range 1-100%.


 Warning Threshold (%)

 A warning is logged if the path count exceeds this percentage; range 0-100%.


 Warning Only on Maximum

 Select to log a warning rather than reset the connection when the maximum number of routes is reached,


 Update Source

 Source IP address that the router uses when sending update messages to this neighbor. By default, BGP uses the IP address of the outgoing interface toward the peer as the source IP address for the TCP connection over which the BGP session runs. 


 Max Update Size

 Maximum size in bytes of update messages transmitted to this neighbor; range 1-4294967295; default 4096.


 Weight

 Relative importance assigned to incoming routes matching AS paths; priority of routes advertised from this neighbor; activated only when it is not None; range 0-4294967295; default 0.


 Local AS Number

 Local AS number to report to this neighbor; range 0-4294967295.


 Default Originate

 Select to enable advertising a default route to this neighbor, if one exists. Clear to disable; default: unselected.


 Next Hop Self

 Select to enable advertising this router as the next hop. Clear to disable; default: checked.


 Send Community

 Select to enable sending community atttribute(s) in updates. Clear to disable; default: checked.


 Strip Private AS Number

 Select to enable removal of private AS numbers from AS paths. Clear to disable; default: unselected.


 Reflector Client

 Select to enable this neighbor as a reflector client; enable only for internal BGP (IBGP). Clear to disable; default: unselected.


 Lenient Behavior

 Select to enable lenient behavior for this neighbor. Lenient behavior allows the neighbor to be more tolerant to certain types of errors. Clear to disable; default: unselected.


 Password

 Password for MD5 authentication; 1-32 characters.