[AusNOG] High availability options for terminating point-to-point Ethernet (on Cisco CE)

[Peter Tonoli]

Hi!

On 29/5/17 09:55, Chris Kawchuk wrote:
> Sorry this may have already been suggested -- and is in JunOS speak,
> but you get the idea. (literally cannot speak iOS anymore) -- requires
> VRRP + BGP to do some tricks.
>
> - Use a /29 as the interconnect
> - Use 2 x CE devices
> - Use 2 x PE devices
> - 2 x BGP sessions form each device (4 BGP sessions in total - i.e.
> full eBGP mesh across the /29 between all physical interface PE1
> PE2 to CE1 CE2)
> - Switches in the middle (far end, local end)
Why would you do this? These switches are increasing single points of
failure, rather than reducing it.
> - Setup a VRRP on both ends (both CE devices as group 2 at customer
> end, both PE devices with group 1 on service provider end)
> - Overwrite net-hop with the respective vrrp address on bgp export
> both ends.
This appears to be quite complicated, considering the point-to-point
link is still a single point of failure - perhaps another link should be
considered?

Peter.