Note: If you configure your 100 Mbps ethernet line for TCPONLY, all IOP assistfunctions are disabled.TCP/IP-assist functions that are available on frame relay IOAs are:v #2699 Two-Line WAN IOAv #2720 PCI WAN/Twinaxial IOAv #2721 PCI Two-Line WAN IOACommunications restrictions apply if any of the following communicationfunctions are required when using the frame relay IOAs, as listed above:v X.25, Frame Relay, or IPX Protocolv SDLC protocol, if used to connect to more than 64 remote sitesv Communications line speeds greater than 64 Kbps and up to 2.048 Mbps for thesynchronous data link control (SDLC) or frame relay protocols (bisync is alwayslimited to a maximum of 64 Kbps)v Communications line speeds greater than 64 Kbps and up to 640Kbps for X.25Merge Host Table PerformanceYou can use the following data to help you plan for and anticipate performancewhen merging host tables. The data represents averages of measurements that aretaken. The actual time required on your server will be different.Three cases were measured:v Small merge—merge a 250-record file into the local host table that currently has50 entriesv Medium merge—merge a 2000-record file into the local host table that currentlyhas 50 entriesv Large merge—merge a 5000-record file into the local host table that currently has50 entries.The results of this test are shown in Table 7.Table 7. Merge Host Table PerformanceNumber of recordsmerged Record formatElapsed time(min:sec) CPU percent250 *AIX 0:42 43.72000 *NIC 5:38 49.45000 *NIC 13:54 48.6This data equates to about 6 records per second and about .07-.08 processing unitseconds per record.Running TCP/IP Only: Performance ConsiderationsCertain configurations of 2838 - 10/100 Mbps Ethernet cards allow you to run theIOP with only TCP/IP instead of all protocols for better performance. You need a2838 Ethernet card with either:v 2810 IOPv 2809 IOP (the 2838 must be the only input/output adapter (IOA)IOA on theIOP)Chapter 3. TCP/IP Performance 73||||||||||||
