[j-nsp] Aggregated Ethernet interface functionality/features

[Daniel Lete]

Hello David,

 From JUNOS Release 8.2 Features
http://www.juniper.net/techpubs/software/junos/junos82/rn-sw-82/rn-new-features.html#rn-new-features

in the VPN's section:

Aggregated Ethernet interfaces for VPLS routing instances—You can configure 
aggregated Ethernet interfaces between CE devices and PE routers for VPLS 
routing instances. Traffic is load-balanced in two ways:

     * If the next hop of VPLS packets to the next CE device is aggregated 
Ethernet, load balancing is based on the input interface. The router picks one 
of the child members to forward the flow. By default, load balancing of learned 
traffic takes place using the input interface.
     * Learned traffic from a different MAC flow originating from the same 
aggregated Ethernet input interface. In this case, to load balance traffic 
across all the links on the interface, configure the forwarding-options 
hash-key source-mac destination-mac statement at the [edit interfaces ae 
number] hierarchy level.


hope it helps,
Daniel



David Ball wrote:
>   In looking through the docs regarding aggregated Ethernet
> interfaces, I was uncertain about a couple things and figured I'd ask
> here.
> 
> We're using T640s and 8-port IQ2 Gig PICs, and I'm looking to
> aggregate 2-3 ports facing a customer's Cisco 4506 (running IOS, not
> CatOS).  This customer is a VPLS (ie. L2) customer on our network.  As
> per the online docs:
> 
> "The JUNOS implementation of 802.3ad balances traffic across the
> member links within an aggregated Ethernet bundle based on the Layer 3
> information carried in the packet."
> 
>  I believe this will only apply if we're using family 'inet', which
> we're not for this customer.  The option to set 'family multisevice'
> values under forwarding-options hash-key exists, but that's a global
> configuration command and I'm looking for something more local.  I'm
> looking to see if i can set an option in the routing-instance's
> routing-options that would help accomplish this, but I don't see
> anything (policy docs say a 'forwarding-table' entry should be avail
> under 'routing-instances RI-name routing-options forwarding-table'.
> 
>   Any advice/guidance/experience would be appreciated.
> 
> David
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