What does the variance command do?
What does the variance command do?
The variance command multiplies the best cost (10,000) by 2 (20,000) and will begin load balancing across all paths with a FD less than that – which includes the path through R2(15,000). This will load balance the traffic in proportion to each path’s metric.
How does EIGRP do unequal load balancing?
One magic word enables unequal-cost load balancing in EIGRP. The variance command is a multiplier and has a default value of 1. The router will multiple the Feasible Distance of the route by the variance value. Any feasible successor with a metric less than that new value will be entered into the routing table.
How does EIGRP load balance?
By default, EIGRP supports equal-cost load balancing over four links. Equal-cost means that multiple routes must have the same metric to reach the destination, so that router can choose to load balance across equal cost links. Router R1 places both routes in the routing table and load balances across three links.
What are the EIGRP K values?
K-Values and EIGRP Metrics
| K Value | Component | Description |
|---|---|---|
| K1 | Bandwidth | Lowest bandwidth of route |
| K2 | Load | Worst load on route based on packet rate |
| K3 | Delay | Cumulative interface delay of route |
| K4 | Reliability | Worst reliability of route based on keep alive |
How many unequal cost paths does EIGRP?
six unequal-cost paths
If a path is not a feasible successor, it is not used in load balancing. EIGRP supports up to six unequal-cost paths.
Is EIGRP Still Cisco proprietary?
EIGRP is a routing protocol that is proprietary to Cisco. Although Cisco submitted a portion of EIGRP to the IETF for consideration as a potential standard, the entire protocol has not been accepted as a standard and remains proprietary to Cisco.
Why is OSPF preferred over EIGRP?
The scalability of the OSPF is higher than EIGRP because EIGRP is complicated and vendor-specific and incapable of migrating from one vendor to the other. Conversely, OSPF is an open standard and simple protocol through which the network can be scaled easily.
What is MTU in EIGRP?
MTU stands for maximum transmission unit. It is advertised with routing update but it does not actively participate in metric calculation. EIGRP allows us to load balance between equal cost paths (32 maximum, default set to 4).
