Dell Force10 S4810P Configuration Manual page 226

Use the
show config
command in EXEC Privilege mode to view BGP configuration.
bgp
You can also use route maps to change this and other BGP attributes. For example, you can include the
following command in a route map to specify the next hop address:
Command Syntax
set weight weight
Enable multipath
By default, the software allows one path to a destination. You can enable multipath to allow up to 16
parallel paths to a destination.
Note: Using Multipath and Add Path simultaneously in a Route Reflector is not recommended.
Use the following command in the CONFIGURA TION ROUTER BGP mode to allow more than one path.
Command Syntax
maximum-paths {ebgp | ibgp} number
The
show ip bgp network
Filter BGP routes
Filtering routes allows you to implement BGP policies. You can use either IP prefix lists, route maps,
AS-PATH ACLs or IP Community lists (via a route map) to control which routes are accepted and
advertised by the BGP neighbor or peer group. Prefix lists filter routes based on route and prefix length,
while AS-Path ACLs filter routes based on the Autonomous System number. Route maps can filter and set
conditions, change attributes, and assign update policies.
Note: FTOS supports up to 255 characters in a set community statement inside a route map.
Note: With FTOS, you can create inbound and outbound policies. Each of the commands used for
filtering, has in and out parameters that must be applied. In FTOS, the order of preference varies
depending on whether the attributes are applied for inbound updates or outbound updates.
For inbound and outbound updates the order of preference is:
• prefix lists (using
226
| Border Gateway Protocol
command in CONFIGURATION ROUTER BGP mode or the
Command Mode
CONFIG-ROUTE-MAP
Command Mode
CONFIG-ROUTER-BGP
command includes multipath information for that network.
neighbor distribute-list
Purpose
Sets weight for the route.
• weight range: 0 to 65535
Purpose
Enable multiple parallel paths.
• number range: 1 to 16
• Default is 1
command)
show running-config