CORRECT TEXT
Fill in the blank. In Load Sharing Unicast mode, the internal cluster IP address is 10.4.8.3. The
internal interfaces on two members are 10.4.8.1 and 10.4.8.2. Internal host 10.4.8.108 Pings
10.4.8.3, and receives replies. The following is the ARP table from the internal Windows host
10.4.8.108.
Review the exhibit and type the IP address of the member serving as the pivot machine in the space below.
Answer: 10.4.8.2
Explanation:
10.4.8.2
Can we see the exhibit?
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I would expect to see the initial ARP head to the pivot and then the responses would show a new ARP for that IP pointing at the secondary non-pivot member.
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no, because you are pinging the VIP so the pivot member will always own that, hence arp response will be from the pivot.
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10.4.8.2
C:>arp
Interface 10.4.8.108 on interface 0x4
Internet Add Physical Address Type
10.4.8.1 00-b0-d0-b7-b5-d5 dynamic
10.4.8.2 00-01-03-34-e3-9d dynamic
10.4.8.3 00-01-03-34-e3-9d dynamic
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https://sc1.checkpoint.com/documents/R76/CP_R76_ClusterXL_AdminGuide/7292.htm
=> In this mode a single cluster member, referred to as Pivot, is associated with the cluster’s virtual IP addresses
Load Sharing Unicast Mode
Load Sharing Unicast mode provides a Load Sharing solution adapted to environments where Multicast Ethernet cannot operate. In this mode a single cluster member, referred to as Pivot, is associated with the cluster’s virtual IP addresses, and is thus the only member to receive packets sent to the cluster. The pivot is then responsible for propagating the packets to other cluster members, creating a Load Sharing mechanism. Distribution is performed by applying a decision function on each packet, the same way it is done in Load Sharing Multicast mode. The difference is that only one member performs this selection: any non-pivot member that receives a forwarded packet will handle it, without applying the decision function. Note that non-pivot members are still considered as “active”, since they perform routing and Firewall tasks on a share of the traffic (although they do not perform decisions.).
Even though the pivot member is responsible for the decision process, it still acts as a Security Gateway that processes packets (for example, the decision it makes can be to handle a packet on the local machine). However, since its additional tasks can be time consuming, it is usually assigned a smaller share of the total load.
When a failover event occurs in a non-pivot member, its handled connections are redistributed between active cluster members, providing the same High Availability capabilities of New High Availability and Load Sharing Multicast. When the pivot member encounters a problem, a regular failover event occurs, and, in addition, another member assumes the role of the new pivot. The pivot member is always the active member with the highest priority. This means that when a former pivot recuperates, it will retain its previous role.
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10.4.8.2
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