D-Link DXS-3600 Series Cli Reference Manual page 210

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
AS-NUMBER
Default
No BGP routing process is enabled by default.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
A BGP router can only have one BGP routing process. Each BGP routing process needs to be associated
with an autonomous system number.
The AS Number is defined as a 2 byte number in RFC1771 and RFC4271. In RFC 4893, the autonomous
number is expanded to 4 bytes in order to support larger number of autonomous number.
Each public autonomous system that directly connects to the Internet needs to have a public assigned
unique number (a number from 1 to 64511). Private autonomous system numbers are in the range from
64512 to 65534 (65535 is reserved for special use).
Private autonomous system numbers can be used for internal routing domains but must be translated for
traffic that is routed out to the Internet. BGP routers should not be configured to advertise private
autonomous system numbers to external networks.
Use this command to enter BGP router configuration mode for the specified routing process.
Example
This example shows how to configure a BGP process for autonomous system 65534.
Switch# configure terminal
Switch(config)# router bgp 65534
Switch(config-router)#
11-67 set as-path
This command is used to specify a statement in a route map to modify an autonomous system path for
BGP routes. To delete an entry, use the no form of this command.
set as-path prepend AS-PATH-STRING
no set as-path prepend
Parameters
AS-PATH-STRING
Default
There is no set AS-path statement.
Command Mode
Specifies the number of an autonomous system that identifies the
router to other BGP routers. This value must be between 1 and
4294967295.
Specifies an AS path string which will be prepended to the path list of
the matched routes. An AS number or a list of AS numbers separated
by comma can be specified.
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