Duncan Wallace wrote: > > Has anyone had any experience in implementing Windows load > balancing a > server cluster ? I have always used hardware based load > balancers so I > am somewhat new to the MS flavor. I have a 2621 router and I am > wondering if it is capable of the following.
The text that you copied and pasted says what you'll have to do, which is create a static ARP that points to a multicast address. Cisco does support this, by the way. See here: charlotte(config)#arp ? A.B.C.D IP address of ARP entry charlotte(config)#arp 10.10.0.3 ? H.H.H 48-bit hardware address of ARP entry charlotte(config)#arp 10.10.0.3 0101.0101.0101 ? arpa ARP type ARPA sap ARP type SAP (HP's ARP type) smds ARP type SMDS snap ARP type SNAP (FDDI and TokenRing) charlotte(config)#arp 10.10.0.3 0101.0101.0101 arpa charlotte(config)#end charlotte# %SYS-5-CONFIG_I: Configured from console by console charlotte#show run Building configuration... Current configuration: ! version 11.0 service udp-small-servers service tcp-small-servers ! hostname charlotte ! interface Ethernet0 ip address 10.10.0.2 255.255.255.0 ! interface Serial0 ip address 192.168.40.2 255.255.255.0 encapsulation frame-relay ! arp 10.10.0.3 0101.0101.0101 ARPA ! line con 0 line aux 0 transport input all line vty 0 4 password cisco login ! end It does seem like a strange solution though, and strange solutions often mean you'll encounter bugs or other problems, so do keep us posted on how it goes. Thanks. _______________________________ Priscilla Oppenheimer www.troubleshootingnetworks.com www.priscilla.com > This is just some > preliminary information gathering, so I thought I would throw > it out to > the group while I do my own research. > What Windows 2000 Advanced Server says: > If Network Load Balancing clients are accessing a cluster > through a > router when the cluster has been configured to operate in > multicast > mode, be sure that the router meets the following requirements: > * Accepts an ARP > P> reply that has one MAC address > C_address> in the payload of the ARP structure but appears to > arrive > from a station with another MAC address, as judged by the > Ethernet > header > * In multicast mode, accepts an ARP reply that has a multicast > MAC > address in the payload of the ARP structure > This allows the router to map the cluster's > r's_primary_IP_address> primary IP address and other > ltihomed_computer> multihomed addresses to the corresponding MAC > address. If your router does not meet these requirements, you > can also > create a static ARP entry in the router. Cisco routers require > a static > ARP entry because they do not support the resolution of unicast > IP > addresses to multicast MAC addresses > lticast_MAC_address> . > > > Thanks in advance, > > Duncan Wallace > [EMAIL PROTECTED] > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56328&t=56244 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
