Dear Doctor,
We recently upgraded our entire backbone infrastructure to Gigabit Ethernet. As part of the upgrade, we also added Gigabit Ethernet NICs to our Windows servers (our System i already had Gigabit NICs). As expected, network performance on the Windows servers improved dramatically; for example, our nightly backups complete in one-fifth of the time it used to take! Alas, our System i is seeing no speed improvements at all, even in large file transfers to the Gigabit-enabled Windows... Read the rest of entry >>
Posted @ 01/01/2008 4:51 PM By Mel Beckman
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Dear Doctor,
We recently extended our campus LAN to several new buildings with hundreds of new users. To limit the range of network broadcasts and potential broadcast storms, we've followed the recommended practice of segmenting the network into multiple IP subnets using layer-3 switches. However, we have only two DHCP servers for the entire network, a primary and a backup, to avoid replicating the DHCP hardware on every subnet. We use DHCP Helper addresses in the switch VLAN configurations to... Read the rest of entry >>
Posted @ 01/01/2008 4:48 PM By Mel Beckman
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