[j-nsp] maximum BGP multipath ECMP supported on M7i or M10i routers?

[Yucong Sun]

Thanks, do you have any insight on the consistent hashing?

if i started with pre flow 8 ecmp route to a single /32, later removed one
route, would packets all be redistributed over 7 route? this would break in
flight tcp sessions to the vip.

Cheers.

On Tuesday, April 1, 2014 12:59:50 AM, Krasimir Avramski <krasi at smartcom.bg>
wrote:

Hi,

Two types of balancing supported: per prefix (bgp multipath) and per flow
(ECMP next-hop including bgp multipath)

Up to 64 ECMP next-hops on MX(DPC, MPC), M120, M10i(Enhanced CFEB), M320(
FPC dependent), T(FPC dependent) for RSVP, LDP, ISIS(ipv4/6), OSPF(ipv4/6),
IBGP(ipv4/6), EBGP(ipv4/6).

Symmetric load balancing<http://www.juniper.net/techpubs/en_US/junos12.2/topics/usage-guidelines/interfaces-configuring-symmetrical-load-balancing-lag-on-mx-routers.html>over
802.3ad link aggregation groups (LAGs) on MX routers with MPCs.

Best Regards,

Krasi


On 31 March 2014 22:14, Yucong Sun <sunyucong at gmail.com> wrote:

Do anyone have in-sight on this?

More over, I guess my quest is to find a device that support

1) per flow hashing with as many as ECMP route as possible.  (not sure how
many ECMP route is supported)
2) consistent hashing (existing flow don't break if route is added or
removed)   (juniper doc didn't mention this)

Your opinion/experience on this is greatly appreciated.

Thanks.


  On Fri, Mar 28, 2014 at 12:44 PM, Yucong Sun <sunyucong at gmail.com> wrote:

> Hi,
>
> Does anyone know how many BGP multipath ECMP routes does a M7i/M10i
> router support? 16? 32 ? 64?
>
> I found this document :
>
>
>
http://www.juniper.net/techpubs/en_US/junos13.3/topics/reference/configuration-statement/maximum-ecmp-edit-chassis.html
>
> which says 16/32/64  but it was only mentioning MPLS routes, not BGP
> multipath routes . I think they might be the samething, but just want
> to be sure.
>
> Thanks!
>


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