21310120_LCP_Network_Management

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LCn Features
Figure 1-7 CDM Enter Software Upgrade Details Window
4. Complete the information on the window, then click Apply. Refer to Table 1-4 for
details about the required information.
5. Click Exit to return to the Enter Cable Data Modem Information window.
6. On the Enter Cable Data Modem Information window, click Apply, then do one of the
following:
a. Click Exit to return to the LANcity Access Server Main Menu.
b. Select another CDM for software upgrade, then repeat steps 1 through 6.
7. When you finish upgrading the CDMs you want, click Exit to return to the LANcity
Access Server Main Menu.
8. Click Update Network Configuration files to save the changes you made.
CDM Software Upgrade Using SNMPc
To perform an automatic software upgrade using SNMPc:
1. Access the SNMP Network Map window for the network you want.
2. Select the CDM(s) you want to upgrade.
3. Choose Manage>LCP/LCb V3.xx And Up>Control. The LCP Control Information
window (Figure 1-8) appears.
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LCP Network Management Guide
Figure 1-8 LCP Control Information Window
This window shows the LCP control information for the specified CDM. (If you
selected multiple CDMs, the system displays a control information window for each
CDM.)
4. Type the LCP server address in the LsIPAddress box, then click Set.
5. Type the name of the new software file in the LoadFile box, then click Set.
6. Click Set next to the Start DownLoad box. The CDM resets and receives a new
configuration file that contains the software upgrade information.
7. Repeat steps 4 through 6 for each CDM LcpControl Information window.
Authorization Key Management
The LCn uses authorization keys to verify that a CDM is valid and should receive
operational parameters. If the CDM s authorization key is not valid, the LCn does not
download the CDM s configuration file. The LCn downloads the file, the CDM rejects it
due to incorrect key, the modem reboots and scans for new correct channel. The LCn is
unreachable.
The authorization key includes a key name and key data. The key name identifies a
CDM s current key. Key names can be passed over the network in plain text. The key data
generates an MD5 digital signature and is never passed over the network in plain text.
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LCn Features
LCPs are shipped with a default authorization key and the Network Utility has a key file
containing the default keys. The LCP can use one of two keys, the current key and the
previous key, which enables you to make key changes. Check the LCn parameters of any
device in SNMPc to find the key names.
The LCn maintains two authorization keys at all times, the current key and the
Caution:
previous key. If you change the keys frequently and by chance one or more of the CDMs
on the network are shut down when you change the keys, their key may not match the
current key or the previous key and they remain inoperable until a configuration file is
generated for it with a known key. (At that point, contact LANcity customer support.)
You can add, verify, edit, and delete authorization keys using the LANcity Access Server
and the Change Authorization Key for Network option.
Adding an Authorization Key
To add an authorization key:
1. Access the LANcity Access Server Main Menu (Figure 1-1).
2. Click CDM key data. The Select Key dialog box (Figure 1-9) appears.
Figure 1-9 Select Key Dialog Box
3. Click New. The Enter Key Data dialog box (Figure 1-10) appears.
Figure 1-10 Enter Key Data Dialog Box
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LCP Network Management Guide
4. Type a key name in the Key Name box, using up to 64 alphanumeric characters.
5. Tab to the Key Data box and enter up to 64 alphanumeric characters.
6. Click Apply to create and enter this key into the database. After about 5 to 10 seconds
the Apply Key Edit Function Complete box appears.
7. Click OK.
8. Click Exit to return to the LANcity Access Server Main Menu.
Verifying an Authorization Key
To verify an authorization key:
1. Access the LANcity Access Server Main Menu (Figure 1-1).
2. Click CDM key data. The Select Key dialog box (see Figure 1-9) appears.
3. Check the key names in the Key Name box to verify a particular key and its key data. [ Pobierz całość w formacie PDF ]

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