[c-nsp] hsrp/vrrp with mpls vpn's

[Heath Jones]

I'm by no means recommending it, but you could get around the issue by using
something like CE <-> vPE BGP peering..?
Its a hack, but i'm sure you could make it go. Failover times would be
longer, states might get screwed up, just an idea...



On 8 September 2010 08:13, Sascha Pollok <nsp-list at pollok.net> wrote:

>  On 8 September 2010 08:44, Michael Sprouffske <msprouffske at yahoo.com>
>> wrote:
>>
>>> So, I have this hsrp lab setup with a coulple PE routers and come CE
>>> routers.  Everything works and all is well.  I wanna know how the 2 PE
>>> routers that are playing in the hsrp role notify other PE routers upstream
>>> or if they do.  So for example, I have one CE1 router attached to  PE1 and
>>> PE2  and they are doing hsrp and it works well. I also have PE3 and PE4
>>> attached to CE2.   How do PE1 and PE2 communicate the hsrp stuff to PE3 and
>>> PE4 or do they need to?  How does PE3 and PE4 know where to send packets?
>>>
>>
>> They don't notify anyone in normal circumstances. HSRP address is only
>> used by traffic from CEs towards PEs. In the other direction normally
>> both PEs advertise the same 'connected' network, and the rest of the
>>
>
> This reminds me of a long-time wish that I have that has not been
> satisfied yet :) As I would like to also influence the traffic
> from the backbone to the PE (thus, to connected routes redistributed
> into the IGP) I would like to modify the admin distance or metric for the
> connected routes for a particular interface. So that I can tweak the
> connected routes in a way that traffic Backbone->PE also prefers the
> HSRP/VRRP master (not to mention "tweak connected routes according to
> HSRP status").
>
> I know I could tweak the redistribute connected in my OSPF router
> using route-maps but that would require listing all connected routes
> in ACLs or similar.
>
> Anyone with a good solution for that one?
>
> Cheers
> Sascha
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