On 11/05/07, Larry Brown <larry.brown@xxxxxxxxxxxxxxxxxxxxx> wrote:
Has anyone done any work where multiple applications use different aliases to a single ethernet card to talk to one another? IE One application uses 10.10.10.1 The next uses 10.10.10.2 The last uses 10.10.10.3 They are all: eth0:1 eth0:2 eth0:3 One of the applications talks to another application as if it is on another box addressing messages to its IP address. For the most part this works fine. I noticed that this process generates a lot of un-answered arp requests. I don't know if I am playing with fire with this for some reason or the only ill affect is that these arp requests add unnecessary traffic. Any thoughts? By the way, the reason for these apps talking to one another via IP is that sometimes those apps are offloaded to other systems and we don't want to have to change logic in communication. Larry
Hi Larry, This is basically how unix/linux clusters work, but I must admit, I never looked at the arp requests. If the arps bother you, and you're not using this for clustering with automatic failover, you could also manage this via dns or /etc/hosts files. You could create three hostnames, and simply have the names translate to the ip address you want/need. Kind regards, Herta -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
