There are two ways of "optimising" NLB depending on your installation. Either -
a) use small vlans on a layer 3 switch and leave the default "alias" mac address set to on. In this scenario, all packets will be flooded all ports in the vlan - in this case only the nlb server cards.
b) Set "alias" mac address to off and use hubs. (with uplinks in to a switch port) The servers will both use the same mac address and cam entries on the switch will be OK. To provide resilience in this instance would require STP.
Compaq teaming should be setup in "fail-over" mode and the "smartswitch" option should be enabled. This option acts as a pre-empt just like with HSRP. Under normal operations all traffic is passed to the primary card, on failure of the link the mac/ip address are moved within a couple of seconds to the standby connection. (not using smartswitch causes "flapping" issues when you manually fail back to primary card)
I used the above successfully on both 3550 / 6509 switches.
Could you elaborate on the NLB using clustering and the bad effects on the network , we are currently working a problem that sounds almost like what you are talking about , windows 2000 servers running clustering and complaints of slow response and hangs at times .
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...