Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-12 Thread Gyan Mishra
Hi Linda On Fri, Mar 12, 2021 at 3:26 PM Linda Dunbar wrote: > Gyan, > > > > You said: > > * Gyan> The Anycast environments that I have worked with architecture > have been server clusters in data centers geographically diverse that sit > behind a load balancer that uses a concept called HRI

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-12 Thread Linda Dunbar
Gyan, You said: Gyan> The Anycast environments that I have worked with architecture have been server clusters in data centers geographically diverse that sit behind a load balancer that uses a concept called HRI host route injection that if the service is up the VIP is BGP advertised for the

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-10 Thread Gyan Mishra
Hi Linda Comments in-line On Wed, Mar 10, 2021 at 6:46 PM Linda Dunbar wrote: > Gyan, > > > > To a router, having multiple servers with the same (ANYCAST) address > attached to different egress routers (A-ER) is same as having multiple > paths to reach the (ANYCAST) address. > > > > You are

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-10 Thread Linda Dunbar
Gyan, To a router, having multiple servers with the same (ANYCAST) address attached to different egress routers (A-ER) is same as having multiple paths to reach the (ANYCAST) address. You are absolutely correct that there are many tools to influence the path section, such as the routing

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-09 Thread Linda Dunbar
Christian, If “network fails”, the packets won’t even get into the desired App Server (or App Layer Load Balancer). What the draft has proposed is to add a “Tie breaker” or additional weight to the “Best Path” selection by BGP/IGP. There is definitely interaction among the Application

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-08 Thread Gyan Mishra
Linda and authors Some thoughts regarding load balancing draft. Anycast in my experience has been used predominantly in my experience within operators networks with BGP overlay, using BGP best path selection and most cases boils down to lowest IGP metric tie breaker shortest path for the

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-08 Thread Liyizhou
Hi, Sorry to chime in. There are certainly some higher layer application/protocols to employ. At the same time, there are some advantages of network layer approaches as well in my mind. When talking about edge computing, there are some unique characteristics. The number of edge sites could

Re: [Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-08 Thread Christian Hopps
> On Mar 8, 2021, at 7:40 PM, Linda Dunbar wrote: > > Christian, > > You said at LSR session today that there might be concern of network > optimizing ANYCAST traffic to better balance among multiple App Layer Load > Balancers. > First of all, only the Applications that need to leverage the

[Lsr] Why not leverage Network conditions to optimize balancing among multiple App Layer Load Balancers? as proposed by draft-dunbar-lsr-5g-edge-compute-ospf-ext

2021-03-08 Thread Linda Dunbar
Christian, You said at LSR session today that there might be concern of network optimizing ANYCAST traffic to better balance among multiple App Layer Load Balancers. First of all, only the Applications that need to leverage the network condition to balance among their multiple Load Balancers