- #Set up expansion 2t for mac how to
- #Set up expansion 2t for mac manual
- #Set up expansion 2t for mac software
- #Set up expansion 2t for mac series
- #Set up expansion 2t for mac mac
#Set up expansion 2t for mac mac
Since the MAC address now conforms to IANA specifications, the Cisco switches can dynamically program the MAC address with the use of IGMP snooping. The virtual MAC address falls within the Internet Assigned Numbers Authority (IANA) range and starts with.
#Set up expansion 2t for mac manual
#Set up expansion 2t for mac series
Also, the use of this configuration on the Catalyst 4500 Series switch might cause high CPU.
#Set up expansion 2t for mac software
Note: When you statically map a MAC address to multiple ports, it is only supported by the software on the Cisco Catalyst 4500 Series switch. Mac address-table static 0300.5e01.0101 vlan 200 interface TenGigabitEthernet1/4 In order to avoid this flooding, insert a static mac-address-table entry in order to switch the cluster-bound packets in the hardware: Since the inbound packets have a unicast destination IP address and a multicast destination MAC address, the Cisco device ignores this entry and the unicast floods each cluster-bound packet.Enter this command in order to populate the ARP table statically:
The virtual IP address is 10.100.1.99 and the multicast MAC address is 0300.5e01.0101.A static MAC address is required in order to reach the cluster outside of the local subnet. The ARP process does not complete for multicast MAC addresses (this breaks RFC 1812).This choice instructs the cluster members to respond to the ARPs for their virtual address with the use of a multicast MAC address, such as 0300.5e01.0101. In Multicast mode, the system administrator clicks the Multicast button in the Microsoft NLB configuration GUI.Here are some notes about the use of NLB in Multicast mode: In order to avoid flooding, Cisco recommends that you use a dedicated VLAN for NLB so that the flooding is constrained.
The switch views the Content Addressable Memory (CAM) table for the MAC address 00-bf-ac-10-00-01, and since there is no port registered with the NLB cluster MAC address 00-bf-ac-10-00-01, the frame is delivered to all of the switch ports. This causes an issue when a packet is sent to the NLB cluster with the destination MAC address as the cluster MAC address 00-bf-ac-10-00-01. The switch uses the MAC address in the Ethernet header, not the ARP header. The MAC address is used in the Address Resolution Protocol (ARP) header, not the Ethernet header.This address appears in the Ethernet frame header. The NLB assigns each NLB server a different fictitious MAC address, based on the host ID of the member. The NLB creates a fictitious MAC address and assigns it to each server in the NLB cluster. When all of the servers in the cluster have the same MAC address, all of the packets that are forwarded to that address are sent to all of the members in the cluster. In Unicast mode, NLB replaces the actual Media Access Control (MAC) address of each server in the cluster with a common NLB MAC address.Here are some notes about the use of NLB in Unicast mode: Internet Group Management Protocol (IGMP) mode.You can configure NLB to work in one of these three modes: It provides a single virtual IP address for all clients as the destination IP address for the entire cluster. Microsoft Windows NLB is a clustering technology that is offered as a part of all Windows 2000 Server and Windows 2003 Server family operating systems. In addition, it reduces downtime that is caused by servers that malfunction. In order to ensure that clients always experience acceptable performance levels, Microsoft Windows NLB provides the ability to add additional servers so that you can scale out stateless applications, such as IIS-based web servers, as client load increases. The NLB technology can be used in order to distribute client requests across a set of servers. If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. Note: Consult the appropriate configuration guide for the commands that are used in order to enable these features on other Cisco platforms. Cisco Catalyst 4948 Series switches that run Cisco IOS Software Version 15.0(2)SG7.Cisco Catalyst 6500 Series switches with Supervisor Engine 2T (Sup2T) that run Cisco IOS ® Software Version 15.1(1)SY1.The information in this document is based on these software and hardware versions:
There are no specific requirements for this document.
#Set up expansion 2t for mac how to
This document describes how to configure the Cisco Catalyst switches in order to interact with Microsoft Network Load Balancing (NLB).
0 kommentar(er)
