Avaya BayRS Version 14.10 Notice download pdf (Page 17)

Release Notes for BayRS Version 14.10 for the Passport 2430 and Passport 5430

308663-14.10 Rev 01

OSPF Guidelines

If you are using Open Shortest Path First (OSPF) services, please be aware of the

following guidelines:

• As of BayRS Version 14.00, we do not support the OSPF backup soloist

feature.

• According to RFC 2328, the cost of an OSPF route to an aggregated group of

networks should be the distance to the furthest network in the group. A new

MIB parameter, wfOspfAggrUseMaxCost, allows you to determine how to

summarize the subnets using the area range. To use the furthest cost in the

routing table, set this MIB parameter to 1 (Enable). If you accept the default, 2

(Disable), the OSPF route cost is represented as the shortest path to a network

within the aggregated group of networks.

IPsec Guidelines

This section describes guidelines you should follow if you are using Internet

Protocol Security (IPsec) services.

IPsec 3DES Performance Considerations

IPsec performance can vary greatly, and IPsec can impact router performance in

general. Factors that affect performance are the cryptographic algorithms that

IPsec uses, which consume substantial CPU resources, other protocols and

features running on the slot that share the same CPU resources as IPsec, and the

processing power of the BayRS router.

The following information will help you plan and manage CPU resources in

BayRS routers configured with IPsec.

Greater security can adversely affect performance. Before deploying IPsec,

identify the data traffic that must be protected. Effective traffic analysis might

result in minimal performance impact on the router. Configure IPsec to bypass

traffic that does not need to be protected, thereby reducing the CPU resources

used. Also, the amount of CPU resources required varies significantly for

different encryption and authentication algorithms.

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Avaya BayRS Version 14.10 Notice Page 17