Table Of Contents
Device Management
Getting Started with Device Management
Understanding the DCR
Using TelePresence Readiness Assessment Manager to Add Devices
Running TelePresence Readiness Assessment Manager Physical Discovery
Filtering Devices for Autodiscovery
Editing Device Credentials
Modifying Traceroute Paths
Viewing Device Discovery Status
Selecting Devices for Assessment
Device Management
These topics explain how to use Cisco TelePresence Readiness Assessment Manager (TelePresence Readiness Assessment Manager) device management:
•
Getting Started with Device Management
• Using TelePresence Readiness Assessment Manager to Add Devices
• Viewing Device Discovery Status
• Selecting Devices for Assessment
Getting Started with Device Management
Before you can use TelePresence Readiness Assessment Manager to assess your network, you must add devices to the CiscoWorks Common Services Device and Credentials Repository (DCR). Use the DCR to do the following:
•Adding devices (adding a device manually)
•Importing devices (using a seed file)
•Exporting devices
•Changing device credentials
TelePresence Readiness Assessment Manager is the front end for performing the following operations on devices in the TelePresence Readiness Assessment Manager inventory:
•Adding devices using discovery
•Viewing device details
•Performing inventory collection on selected devices
Note•Configuration changes on a device are discovered by TelePresence Readiness Assessment Manager only during inventory collection. Therefore any changes to a device's configuration will not be shown by TelePresence Readiness Assessment Manager until the next inventory collection after the configuration change.
•If Telnet credentials are wrong or not provided, the devices will be discovered but will be marked as failed during inventory collection.
Understanding the DCR
The DCR is a centralized device repository. Changes to the DCR are propagated to TelePresence Readiness Assessment Manager. To access DCR, click CiscoWorks in the top right corner of the window and select Device and Credentials to open the Device Management window to add, delete, or view devices. For details on how you can add devices to the DCR, see the Common Services online help.
TelePresence Readiness Assessment Manager inventory is separate from the DCR inventory. After a device is added to the DCR, the DCR assigns a DCR ID to every managed component.The DCR maps components to devices using either the device name or IP address. After the DCR device is added to TelePresence Readiness Assessment Manager, TelePresence Readiness Assessment Manager maps the DCR ID to the name of a device during inventory collection.
Note Do not confuse the TelePresence Readiness Assessment Manager physical discovery (which adds devices to the DCR) or the TelePresence Readiness Assessment Manager inventory collection process (which probes devices and updates components in TelePresence Readiness Assessment Manager inventory) with DCR synchronization. TelePresence Readiness Assessment Manager inventory collection is a process that affects only the TelePresence Readiness Assessment Manager inventory.
Using TelePresence Readiness Assessment Manager to Add Devices
TelePresence Readiness Assessment Manager adds devices to the DCR through physical discovery.
Note To add devices manually or by using bulk import (importing from an NMS or from a file), you must go through DCR. For more information, see the instructions in the Common Services online help.
From Devices > Discover > Discovery Configuration, you can select any of the following radio buttons:
• Discovery—Enable device discovery on this page by choosing one or more of the following discovery methods: CDP, Ping Sweep, and Traceroute. For more information, see the "Running TelePresence Readiness Assessment Manager Physical Discovery" section.
• Credentials—Discovery requires SNMP or SNMPv3 or both, SSH and Telnet credentials. If the credentials are not configured, enter device credentials on this page. For more information, see the "Editing Device Credentials" section.
• Filters—Set up any filters on this page during device discovery. You can set up filters based on IP address, DNS domain, or sysLocation. For more information, see the "Filtering Devices for Autodiscovery" section.
Running TelePresence Readiness Assessment Manager Physical Discovery
Note•Discovery requires SNMP or SNMPv3 credentials or both. If credentials are not configured, the Credentials page appears. For more information, see the "Editing Device Credentials" section.
•If Telnet enable credentials are not entered, some device compliance rules will not get applied to the device. For more information on device compliance, see the "Running Compliance Analysis" section on page 4-1.
Step 1 To enable device discovery, select Devices > Discover > Discovery Configuration. The Discovery Configuration page appears.
Step 2 Check the Discovery radio button and enter data, as described in the following table.
Field
|
Action/Description
|
Use Cisco Discovery Protocol (CDP)
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Enter a seed device IP address or a comma-separated list of IP addresses. You can also select the Use devices currently in the system check box to include all devices in DCR. Select the number of hops using the hops list to provide a boundary condition for discovery.
|
Use ping sweep
|
The CDP, ping sweep, and traceroute options can be used in an either/or mode.
Specify a comma-separated list of IP address ranges using the /netmask specification. For example, use 172.20.57.1/24 to specify a ping sweep range starting from 172.20.57.1 and ending at 172.20.57.255.
|
Use traceroute (recommended method)
|
The CDP, ping sweep, and traceroute options can be used in an either/or mode.
To find devices using traceroute, enter a pathname for a given set of source and destination devices. Select a source and a destination to discover the path. For information on modifying a path, see "Modifying Traceroute Paths" section.
Traceroute is the preferred method for device discovery. Generated reports provide assessment based on the traceroute path.
Note Telnet credentials are required for traceroute.
|
Run
|
Select a radio button and enter the schedule:
•Now—Select to run immediately.
•Schedule—Enter time and day on which to run.
|
Step 3 Click OK. Discovery starts to run and might take some time depending on the number of devices being discovered. (Check the status of discovery from Devices > Discovery>Discover Status.)
Filtering Devices for Autodiscovery
You can exclude or include specific devices you want discovered by specifying IP addresses, DNS Domains, or sysLocation OIDs.
Note•Discovery requires SNMP or SNMPv3 credentials or both. If credentials are not configured, the Credentials page appears. For more information, see the "Editing Device Credentials" section.
•If Telnet enable credentials are not entered, some device compliance rules will not get applied to the device. For more information on device compliance, see the "Running Compliance Analysis" section on page 4-1.
Step 1 To set up any filters during device discovery, select Devices > Discovery> Discovery Configuration. The Discovery Configuration page appears.
Step 2 Check the Filters radio button and enter data described in the following table.
Field
|
Action/Description
|
IP Address
|
(Optional) Enter comma-separated IP addresses or IP address ranges for devices:
•Include—In the autodiscovery process.
•Exclude—From the autodiscovery process.
You can use wildcards when specifying the IP address range.
An asterisk (*) denotes the octet range of 1-255. You can use the[xxx-yyy] notation to constrain the octet range.
For example:
•To include all devices in the 172.20.57/24 subnet in autodiscovery , enter an include filter of 172.20.57.*.
•To exclude devices in the IP address range of 172.20.57.224 - 172.20.57.255 from autodiscovery, enter an exclude filter of 172.20.57.[224-255].
Both types of wildcards can be used in the same range specification; for example, 172.20.[55-57].*. If you specify both include and exclude filters, the exclude filter is applied first before the include filter. After you apply a filter, a discovered device, no other filter criterion can be applied to the device. If a device has multiple IP addresses, the device will be processed for autodiscovery provided that it has one IP address that satisfies the include filter.
|
DNS Domain
|
(Optional) Enter comma-separated DNS domain names for devices to:
•Include—In autodiscovery processing.
•Exclude—From autodiscovery processing.
The DNS names can be specified using wildcards. An asterisk (*) matches any combination of mixed uppercase and lowercase alphanumeric characters, along with the hyphen (-) and underscore (_) characters, of an arbitrary length. A question mark (?) matches a single uppercase or lowercase alphanumeric character or a hyphen or an underscore character. For example:
•*.cisco.com matches any DNS name ending with .cisco.com.
•*.?abc.com matches any DNS name ending with .aabc.com, or .babc.com, etc.
|
SysLocation
|
(Optional) Enter comma-separated strings that will match the string value stored in the sysLocationOID in MIB-II, for devices to:
•Include—In autodiscovery processing.
•Exclude—From autodiscovery processing.
The location strings can be specified using wildcards. An asterisk (*) matches, up to an arbitrary length, any combination of mixed uppercase and lowercase alphanumeric characters, hyphen (-), underscore (_), and, white space (spaces and tabs). A question mark (?) wildcard matches a single occurrence of any of the above characters. For example, a sysLocation filter of San * will match all sysLocation strings starting with San Francisco, San Jose, etc.
|
Editing Device Credentials
The Default Credentials page enables you to specify credentials that automatic discovery uses in order to physically discover the devices in the network. As soon as autodiscovery determines the correct credentials for a device, it enters those credentials in the DCR for that device. The credentials specified on the Default Credentials page are not used for any other purpose.
Note If a device has both SNMP V2 and SNMP V3 configured on it, and if you enter both credentials in the Default Credentilals page, automatic discovery tries all SNMP V3 credentails before trying SNMP V2 credentials.
Step 1 To add or modify default discovery configuration parameters select Devices > Discovery> Discovery Configuration.
Step 2 Select the Credentials option and do one of the following:
•Click Add to enter credentials for a given target. Enter appropriate credentials.
•Click Edit to modify credentials for a given target. Enter appropriate credentials
•Click Delete to remove default credentials for a given target.
Note•Discovery requires SNMP or SNMPv3 credentials or both. If credentials are not configured, the Credentials page appears. For more information, see the "Editing Device Credentials" section.
•If Telnet enable credentials are not entered, some device compliance rules will not get applied to the device. For more information on device compliance, see the "Running Compliance Analysis" section on page 4-1.
Step 3 Click OK.
Modifying Traceroute Paths
To add or delete a device from a path:
Step 1 Select Devices > Discovery > Traceroute Path Management.
Step 2 Select a path to modify.
Step 3 Click Modify Path.
Step 4 Do one of the following:
•Click Add a new device to this path.
•Click Remove a device from this path.
Step 5 Select the appropriate path, and click Next.
Step 6 Select the device and its interfaces.
Step 7 Click Next.
Step 8 Enter port information, and click Done.
Note Path information will be updated after the next inventory collection.
Viewing Device Discovery Status
Select Devices > Discovery > Discovery Status to view device discovery status or a list of discovered devices. This page appears after TelePresence Readiness Assessment Manager finishes discovery. You can click the Refresh button to see the most current device discovery status. You can also click Reconfigure if you want to go back to the Discovery configuration page.
The Discovery Status page displays the following information:
•Start Time—Time device discovery started or time it is scheduled to start.
•End Time—Time device discovery was complete. This field is blank if discovery is running, scheduled, or has failed.
•Status:
–In progress—Device discovery is running.
–Completed—Device discovery is finished.
–Failed—Seed devices are not accessible.
The link that appears at the bottom of the page takes you to a report that lists all discovered devices.
Selecting Devices for Assessment
All devices discovered by TelePresence Readiness Assessment Manager are included in assessment operations by default.
Excluding Devices from Assessment
Step 1 To exclude discovered devices frominventory collection, compliance analysis, and performance data collection, select Devices > Discovery > Device Selection. This page displays a list of all discovered devices. To see only a particular set of devices, see Filtering the Device List.
Step 2 Select the devices to exclude.
Step 3 Click Exclude Devices. A dialog box appears asking if you are sure you want to exclude the devices you selected.
Step 4 Click Yes.
Including Devices from Assessment
If you exclude devices, you can include the devices again.
Step 1 Click Include Devices. A window appears with a list of devices that have been excluded.
Step 2 Select devices to include.
Step 3 Click Submit.
Filtering the Device List
If you have a very long device list, you might want to view only a specific set of devices. You can choose to filter (by IP address, DNS name, device classification (role), status, and traceroute pathname) which devices to view by selecting an item from the available lists located at the top of the page. For example, if you want to view all devices with IP addresses that begin with 172.20.12.*, do the following:
Step 1 From the first list, select IP Address.
Step 2 From the second list, select starts with.
Step 3 Enter 172.20.12 in the text field.
Step 4 Click Filter. A window appears with a filtered device list.
Step 5 Select devices to exclude.
Step 6 Click Submit. The window closes, and now the devices you previously selected are also checked in the Device Selection Page.
