Cisco DS-C9216I-K9, Руководство по настройке

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24-5
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
OL-7753-01
Chapter 24 Configuring IP Storage
Configuring Gigabit Ethernet Interfaces
Figure 24-4 VRRP Scenario
In Figure 24-4 , all members of the VRRP group must be IP storage Gigabit Ethernet ports. VRRP group
members can be one or more of the following interfaces:
•
One or more interfaces in the same IPS module
• Interfaces across IPS modules in one switch
•
Interfaces across IPS modules in different switches
• Gigabit Ethernet subinterfaces
•
Ethernet PortChannels
• Subinterfaces
The VRRP preempt option is not supported on IP storage Gigabit Ethernet interfaces. However, if the
virtual IP address is also the IP address for the interface, then preemption is implicitly applied.
Configuring Ethernet PortChannels
Ethernet PortChannels refer to the aggregation of multiple physical Gigabit Ethernet interfaces into one
logical Ethernet interface to provide link redundancy and, in some cases, higher aggregated bandwidth
and load balancing.
The data traffic from one TCP connection always travels on the same physical links. An Ethernet switch
connecting to the MDS Gigabit Ethernet port can implement load balancing based on its IP address, its
source-destination MAC address, or its IP and port. In iSCSI scenarios if the Ethernet switch is not
capable of load-balancing based on the IP address or the IP port, multiple iSCSI initiators are required
to take advantage of the Ethernet PortChannel feature.
The Cisco Ethernet switch’s PortChannel should be configured as a static PortChannel, and not the
default 802.3aa protocol.
Ethernet PortChannels can only aggregate two physical interfaces that are adjacent to each other on a
given IPS module.
90855
Switch 1
VRRP group
virtual IP 10.1.1.100
L2 switch
Connect to
10.1.1.100
Switch 2
10.1.1.10
VRRP master
IPS module
IPS module
10.1.1.30
VRRP backup
IP network