-----Original Message-----
From: Robert Varga [mailto:nite@...]
Sent: Thursday, September 07, 2017 7:42 PM
To: Satish Dutt <SDutt@...>; bgpcep-dev@...; bgpcep-users@...
Subject: Re: [bgpcep-users] Does ODL BGP support 2 byte ASN also ?

On 07/09/17 15:27, Satish Dutt wrote:

Hi,

 

In the ODL BGP user guide it has been mentioned that "OpenDaylight BGP
implementation supports _four-octet AS numbers only_".  Does this mean
the 2 byte AS numbers will not be supported by ODL ?

Correct.

Regards,
Robert

-----Original Message-----
From: Robert Varga [mailto:nite@...]
Sent: Thursday, September 07, 2017 8:03 PM
To: Satish Dutt <SDutt@...>; bgpcep-dev@...; bgpcep-users@...
Subject: Re: [bgpcep-users] Does ODL BGP support 2 byte ASN also ?

On 07/09/17 16:24, Satish Dutt wrote:

Thanks Robert .

Since ODL is not supporting the 2 byte ASN, I have the below queries regarding the ODL support of the ASN :

1) If the old ASN numbers are used in a network, will the 2 byte ASN get embedded as part of the 4 byte ASN ?
2) Whether the private ASN numbers of the 2 byte ASN in the range 64512 - 65534 be honored in the 4 byte ASN ?

As stated on wiki, ODL acts as an RFC4893 NEW speaker. Translation and mapping of 2-byte ASNs is therefore a question on the advertising peer side. That is expected to conform to RFC4893 (or RFC6793), which covers these mechanics.

Regards,
Robert