Configuring IOA
In this chapter, all configuration steps relate to a reference topology shown in IOA CLI Reference Topology where SJC and RTP represent two sites connected through the WAN or MAN ISLs. In this example, sjc-sw2 and rtp-sw2 represent the core switches where IOA is deployed. sjc-sw1 and rtp-sw1 are edge switches that has the hosts or targets connected to them.
The process of configuring IOA involves a number of configuration tasks that should be completed in order.
On each IOA switch, complete the following configurations:
Classifying the Switch to IOA Site
On the master IOA switch, complete the following configurations:
Adding Nodes to an IOA Cluster
Adding Interfaces to an IOA Cluster
Enabling Clustering
The first step in the process of configuring IOA is to enable clustering in all of the IOA switches.
To enable or disable the IOA cluster on sjc-sw2, perform this task:
Procedure
Step 1 |
sjc-sw2# configure terminal Enters configuration mode. |
Step 2 |
sjc-sw2(config)# feature cluster Enables clustering. |
Step 3 |
sjc-sw2(config)# no feature cluster Disables clustering. To complete the configuration for the reference topology, enable clustering in rtp-sw2. |
Enabling the IOA Service
After enabling the IOA cluster, the second step in the process of configuring IOA is to enable the IOA service on each of the IOA switches.
To enable the IOA service on sjc-sw2, perform this task:
Procedure
Step 1 |
sjc-sw2# configure terminal Enters configuration mode. |
Step 2 |
sjc-sw2(config)# feature ioa Enables IOA feature. |
Step 3 |
sjc-sw2(config)# no feature ioa Disables IOA feature. To complete the configuration for the reference topology, enable the IOA service in rtp-sw2. |
Classifying the Switch to IOA Site
Each of the IOA switches need to be classified into a site. Make sure that you classify only the IOA switches within the physical site into an IOA site.
To classify an IOA switch into the SJC site, perform this task:
Procedure
Step 1 |
sjc-sw2# configure terminal Enters configuration mode. |
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Step 2 |
sjc-sw2(config)# ioa site-local SJC Configures the site to which the switch belongs. The maximum name length is restricted to 31 alphabetical characters.
To complete the configuration for the reference topology, classify rtp-sw2 into the RTP site. |
Configuring IOA Interfaces
After enabling the cluster and enabling IOA, configure the IOA interfaces on the switch.
Procedure
Step 1 |
sjc-sw2# configure terminal Enters configuration mode. |
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Step 2 |
sjc-sw2(config)# interface ioa 2/1 Configures IOA on service engine 1 in slot 2. |
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Step 3 |
sjc-sw2(config)# interface ioa 2/1 Configures IOA on service engine 2 in slot 2.
A standard MDS notation is used to denote the IOA interfaces: ioa slot /service engine . For example, ioa2/1 refers to Slot 2, Service Engine 1. In the case of the MSM-18/4 Module and 9222i Switch, only one service engine exists and so only ioa2/1 is valid. In the case of the SSN-16 Module, four service engines exist and so ioa2/1, ioa2/2, ioa2/3, and ioa2/4 are valid interfaces. |
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Step 4 |
sjc-sw2(config)# no interface ioa 2/2 Deletes the IOA interface.
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Step 5 |
sjc-sw2(config-if)# no shutdown Enables the IOA interface. |
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Step 6 |
sjc-sw2(config-if)# shutdown Disables the IOA interface.
To complete the configuration for the reference topology, configure the interfaces in rtp-sw2. |
Displaying IOA Interface Status
After configuring the IOA interface, use the show int command to show whether the IOA interface is down. The interface is down until the interface is added to a cluster.
sjc-sw2# show interface ioa 2/1
ioa2/1 is down (Not in any Cluster)
0 device packets in, 0 device packets out
0 device bytes in, 0 device bytes out
0 peer packets in, 0 peer packets out
0 peer bytes in, 0 peer bytes out
0 i-t create request, 0 i-t create destroy
0 i-t activate request, 0 i-t deactivate request
Possible reasons for the interface being down are as follows:
- Administratively down—The interface is shut down.
- Not in any cluster—The interface is not part of any IOA cluster.
- Port software failure—A software failure has occured causing a reset of the IOA service engine.
- No license—The interface does not have a valid IOA license. The license is either not installed or all the available licenses are in use.