[c-nsp] MPLS load-balancing on ME-3800X

[Waris Sagheer (waris)]

Agree with George. I am copying Sartaj to provide the details on the best way to achieve the solution. Sartaj, please review James question to provide the relevant solution.

Best Regards,

[http://www.cisco.com/web/europe/images/email/signature/horizontal06.jpg]

Waris Sagheer
Technical Marketing Manager
Service Provider Infrastructure
waris at cisco.com<mailto:waris at cisco.com>
https://cisco.jiveon.com/docs/DOC-966237
Phone: +1 408 853 6682
Mobile: +1 408 835 1389
CCIE - 19901


This email may contain confidential and privileged material for the sole use of the intended recipient. Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message.
For corporate legal information go to:http://www.cisco.com/web/about/doing_business/legal/cri/index.html



From: 'George Giannousopoulos' <ggiannou at gmail.com>
Date: Saturday, December 17, 2016 at 8:37 AM
To: James Jun <james at towardex.com>
Cc: "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>, "Lukasz Bromirski (lbromirs)" <lbromirs at cisco.com>, Waris Sagheer <waris at cisco.com>
Subject: Re: [c-nsp] MPLS load-balancing on ME-3800X

Hi James ,

I believe the ASR920 is capable of load balancing on egress port channel. It depends of course on the hashing algorithm but certainly the actual payload must "contain" several flows that will be identified and will be sent to different members.

Is that your case?

--
George

On 15 Dec 2016 21:05, "James Jun" <james at towardex.com<mailto:james at towardex.com>> wrote:
Hi Waris,

One question I have about load-balancing on ASR920.  If the device is acting as PE for L2VPN, how does one actually achieve load balancing out to the CE facing LAG interface?

The CE facing configuration is contained in an EFP, and according to IOS XE documentation, EFPs inside a port-channel are not load balanced within (i.e. egress traffic only goes out on one member links).

Consider this configuration on a sample PE below.  As you can see, the attachment of the customer onto L2VPN is on an EFP.  Traffic exiting the L2VPN/VFI and egressing port-channel20 toward the customer never gets load-balanced and the entire EFP traffic is mapped to one member link.

James


!
port-channel load-balance-hash-algo src-dst-mixed-ip-port
!
l2 vfi test-vpls
 vpn id 98
 bridge-domain 20
 mtu 1500
 neighbor 10.1.100.34 encapsulation mpls
!
interface Port-channel20
 description LAG to Customer/CE
 service instance 1 ethernet
  description EFP for L2VPN Service
  encapsulation untagged
  l2protocol peer lacp
  bridge-domain 20
  mac security
 !
!
interface GigabitEthernet0/0/0
 description To CE: LAG Member #1 of 2
 channel-group 20 mode active
!
interface GigabitEthernet0/0/1
 description To CE: LAG Member #2 of 2
 channel-group 20 mode active
!
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/