[c-nsp] 6PE FIB usage on 6500/7600

[Tim Durack]

You could run vpnv4 (4VPE) and vpnv6 (6VPE), and use: mpls label mode
all-vrfs protocol all-afs per-vrf

Works for us. You will take a pps hit due to the aggregate triggered IP
lookup.

I too dream of and IPv6 control-plane. If that be SR, bring it on...

Tim:>


On Thu, Jan 2, 2014 at 3:29 AM, Steve Glendinning <steve at netthatworks.com>wrote:

> Hi all,
>
> I've enabled 6PE on some of our rsp720-3cxl's (running SRE8) that carry
> full global routes, and it appears to have allocated a separate MPLS label
> for each IPv6 prefix in BGP (approx 16,000 of them).  Consequently this is
> chewing up significantly more FIB space, as each (global) IPv6 prefix now
> uses 1 144-bit slot and 1 72-bit slot (so 3 of the 1M entries available).
>
> Is this right?  It seems very wasteful, given that in the IPv4 world I only
> have labels for my IGP routes and everything else is happy being sent
> towards their favourite default route with just a "loopback" label on it.
>
> Some of the Cisco documentation mentions an "aggregate" IPv6 label, which
> would make more sense.  Is this available on 7600/6500?
>
> Thanks,
> --
> Steve
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>



-- 
Tim:>