Hi,
We are running an mpls network consisting of MX104's running ISIS in the core. We are providing mostly l2circuits and L3 VPN's to our customers. Each MX104 has 10G links between them. We are now planning on upgrading to have 20G between each MX. Since we want to achieve load balancing, what type of configuration is best practice? Is it to run LAG with LACP on the 2 x 10G ISIS links? Or should we just use two point-to-point links and load balancing will occur by default hash-key? We don't have any hash-key configured in forwarding-options as of today. Any recommendations on what we should use?
Someone told me that LACP should be avoided since there could be problems if CPU is busy. However the CPU utilization are running at 95% Idle mostly and we don't have any large routing-tables or similar that would cause pressure on the CPU.
Thanks in advance.
Reccy
JNCIS-SP, JNCIS-SEC