Summary

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Summary

A hierarchical IP address concept, as well as a host name concept, has to be in place before the implementation of SAP. Here is a summary of the basic recommendations for IP address and host name concepts for SAP network infrastructures:

• Each device attached to an IP-based network needs a unique IP address.

  
  



• Multi-homed servers need a unique IP address for each network interface.

  
  



• Cluster and load sharing solutions also employ unique virtual IP addresses.

  
  



• Routers need a unique IP address for each port.

  
  



• Use addressing only to encode topological, not organizational, information.

  
  



• Limit IP subnets to approximately 500 nodes.

  
  



• Allow adequate IP addressing room for future growth.

  
  



• Consider using a private IP address space in conjunction with Network Address Translation.

  
  



• IP names of servers must be resolved, either via DNS or with hosts files.

  
  



• Reverse lookup for these IP addresses must be possible.

  
  



• A backup domain name server is a must.

  
  



• Consider layer-2 NIC redundancy.

  
  



• Consider using EtherChannel or Balance Suite.

  
  



• SAP front-ends can generally be operated with DHCP.

  
  



• Multiple network protocol stacks do not hinder the operation of the SAPGUI

  
  
  

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