Adding static routes (referred to in this document as IP routes) to the routing table associates destination IPs to a specific Ethernet interface on the DSC 8000. With multihoming scenarios, when the Stream Control Transmission Protocol (SCTP) establishes an association, this protocol selects one destination IP address and one outbound interface to that destination IP address. The choice is made according to the lowest cost route. Traffic over one IP route can be redirected to another IP route.

When there is a timeout error on a path to a destination IP address, SCTP tries to choose another outbound interface. The choice is made in a round-robin fashion. SCTP keeps using the same outbound interface until a timeout error occurs. You can achieve failover by providing multiple paths to the same destination IP address, therefore, allowing SCTP to manage the routing.

For detailed information about the appropriate description of the various supported CPUs and VMs, refer to Terminology.

Note

You can configure the IP/SCTP packet [also referred to as Maximum Transmission Unit (MTU) size (in bytes)] for the DSC 8000 static routes to best suit your unique networking environment. For more information, refer to Configure the IP/SCTP Packet Size. 

This feature is not supported for the Management and Application CPUs. The MTU for these interfaces is set by the Dynamic Host Configuration Protocol (DHCP) to 1500 bytes by default that cannot be changed. 

Topics

Note: The terms Static Route and IP Route can be used interchangeably in this documentation.

TaskProcedure
Review the DSC 8000 multihoming implementationDSC 8000 Multihoming Overview
Review multihoming examples

DSC 8000 Multihoming Configuration Examples

Add an IP route

Add IP Routes to the DSC 8000

Modify the source IP for a route

Edit the Source IP for a Route

Delete a static route

Delete a Static Route