Novell NETWARE 6, Руководство пользователя

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96
Internetwork Packet Exchange
Internetwork Packet Exchange
103-000176-001
August 29, 2001
Novell Confidential
Manual 99a
38
July 17, 2001
Some NetWare protocols, such as SPX, use the ticks value to calculate
retransmit timers. If you are configuring LAN routers that must communicate
over a bridge, a satellite, or both, you probably need to adjust the delay and
throughput values on the routers. Setting the throughput to match the speed of
the link and increasing the link delay prevent SPX retransmissions and
timeouts between systems separated by a slow link.
Figure 14 shows two NetWare LANs joined by two bridges communicating
over a satellite link. To enable the workstations to communicate with the
router and the systems in the IPX internetwork on the other end of the link,
you set the Throughput Override on each router to 56,000—the throughput of
the satellite link—and the Delay Override to 800,000—an arbitrary (but
sufficiently high) value to prevent timeouts over the link.
IMPORTANT:
Although this configuration enables systems on each end of the link
to communicate through the routers, it does not enable direct workstation-to-
workstation communication between the two LANs.
Figure 14 Setting Delay and Throughput for Systems Communicating over a 56-KB Satellite Link
NetWare
Router
NetWare
Workstation
Bridge Bridge
56-KB
Satellite Links
NetWare
LAN
NetWare
Workstation
NetWare
LAN
NetWare
Router
IPX
Internetwork
IPX
Internetwork
Set Throughput Override to 56,000
and
Delay Override to 800,000