[j-nsp] Using QoS to ensure BGP bandwidth

[Thomas Mangin]

Alex wrote:
> Jason,
> Locally originated BGP traffic is classified into Q0 by default (except BGP 
> retransmissions)
> http://www.juniper.net/techpubs/software/junos/junos82/swconfig82-cos/html/cos-hardware4.html#1197876
> --and AFAIK, it is impossible to override this behaviour. So, in an essence, 
> you can guarantee bandwidth to
> BGP traffic _through_ the router but not to locally-originated BGP traffic.
>   
Never tried, just a mad idea.

If using trunking to switches : create two vlan, one for control one 
traffic. Use the control vlan for BGP traffic but make the next hop the 
IP of the traffic interface ? This way you can limit the bandwidth on 
the customer vlan and be sure that some is left on the "control" one. No 
idea if you can apply the same idea to your IGP as well.

Thomas
PS: I do not pretend it is a sane idea neither.