Deployment Guide

• AS Numbers larger than 65535 is represented using ASDOT notation as <higher 2 bytes in decimal>.<lower 2 bytes in decimal>. For
example: AS 65546 is represented as 1.10.
ASDOT representation combines the ASPLAIN and ASDOT+ representations. AS numbers less than 65536 appear in integer format
(asplain); AS numbers equal to or greater than 65536 appear in the decimal format (asdot+). For example, the AS number 65526 appears
as 65526 and the AS number 65546 appears as 1.10.
Dynamic AS Number Notation Application
The Dell Networking OS version 8.3.1.0 applies the ASN notation type change dynamically to the running-cong statements.
When you apply or change an asnotation, the type selected is reected immediately in the running-conguration and the show commands
(refer to the following two examples).
Example of Dynamic Changes in the Running Conguration When Using the bgp asnotation Command
Example of the Running Conguration When AS Notation is Disabled
ASDOT
Dell(conf-router_bgp)#
bgp asnotation asdot
Dell(conf-router_bgp)#show conf
!
router bgp 100
bgp asnotation asdot
bgp four-octet-as-support
neighbor 172.30.1.250 local-as 65057
<output truncated>
Dell(conf-router_bgp)#do show ip bgp
BGP table version is 24901, local router ID is 172.30.1.57
<output truncated>
ASDOT+
Dell(conf-router_bgp)#
bgp asnotation asdot+
Dell(conf-router_bgp)#show conf
!
router bgp 100
bgp asnotation asdot
bgp four-octet-as-support
neighbor 172.30.1.250 local-as 65057
<output truncated>
Dell(conf-router_bgp)#do show ip bgp
BGP table version is 24901,
local router ID is 172.30.1.57
<output truncated>
AS-PLAIN
Dell(conf-router_bgp)#
bgp asnotation asplain+
Dell(conf-router_bgp)#sho conf
!
router bgp 100
bgp four-octet-asdot+
bgp four-octet-as-support
neighbor 172.30.1.250
local-as 65057
<output truncated>
Dell(conf-router_bgp)#do sho ip bgp
BGP table version is 31571, local router ID is 172.30.1.57
<output truncated>
AS-PLAIN
Dell(conf-router_bgp)#
bgp asnotation asplain
Dell(conf-router_bgp)#sho conf
AS NOTATION DISABLED
Dell(conf-router_bgp)#no bgp asnotation
Dell(conf-router_bgp)#sho conf
!
router bgp 100
Border Gateway Protocol IPv4 (BGPv4)
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