To administer the eG manager, do the following:
1. Log into the eG administrative interface.
2. Since the eG Enterprise suite cannot automatically discover a 3COM Cor Builder switch, you need to manually add the component using the ADD/MODIFY COMPONENTS page (Infrastructure-> Components -> Add/Modify) (see Figure 10.1). Remember that components manually added are managed automatically. Discovered components, however, are managed using the COMPONENTS - MANAGE/UNMANAGE page.
For more details on adding and managing components, refer to the Configuring and Monitoring web Servers document.
Figure 10.1: Adding a 3COM Core Builder Switch
3. When you attempt to sign out, a list of unconfigured tests appears (see Figure 10.2).
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C o n f i g u r i n g a n d M o n i t o r i n g 3 C O M C o r e B u i l d e r S w i t c h e s
Figure 10.2: A list of unconfigured tests
4. Click on the Core Builder test to configure it. monitors critical metrics relating to each of the network interfaces of a 3COM Core Builder switch. To configure the test, provide the following details in Figure 10.3 that appears:
TEST PERIOD - How often should the test be executed HOST – The IP address of the server
Ensure that the specified HOST is SNMP-enabled. If not, the test will not function.
SNMPPORT - The default SNMP port is 25
SNMPVERSION – By default, the eG agent supports SNMP version 1. Accordingly, the default selection in the SNMPVERSION list is
v1
. However, if a different SNMP framework is in use in your environment, say SNMPv2
orv3
, then select the corresponding option from this list.SNMPCOMMUNITY – The SNMP community name that the test uses to communicate with the Cisco router. This parameter is specific to SNMP
v1
andv2
only. Therefore, if the SNMPVERSION chosen isv3
, then this parameter will not appear.USERNAME – This parameter appears only when
v3
is selected as the SNMPVERSION. SNMP version 3 (SNMPv3) is an extensible SNMP Framework which supplements the SNMPv2 Framework, by additionally supporting message security, access control, and remote SNMP configuration capabilities. To extract performance statistics from the MIB using the highly secure SNMP v3 protocol, the eG agent has to be configured with the required access privileges – in other words, the eG agent should connect to the MIB using the credentials of a user with access permissions to be MIB. Therefore, specify the name of such a user against the USERNAME parameter.AUTHPASS – Specify the password that corresponds to the above-mentioned USERNAME. This parameter once again appears only if the SNMPVERSION selected is
v3
.CONFIRM PASSWORD – Confirm the AUTHPASS by retyping it here.
AUTHTYPE – This parameter too appears only if
v3
is selected as the SNMPVERSION. From the AUTHTYPE list box, choose the authentication algorithm using which SNMP v3 converts the specified USERNAME and PASSWORD into a 32-bit format to ensure security of SNMP transactions. You can choose between the following options:o MD5 – Message Digest Algorithm o SHA – Secure Hash Algorithm
ENCRYPTFLAG – This flag appears only when
v3
is selected as the SNMPVERSION.By default, the eG agent does not encrypt SNMP requests. Accordingly, the ENCRYPTFLAG is set to NO by default. To ensure that SNMP requests sent by the eG agent are encrypted, select the YES option.
C o n f i g u r i n g a n d M o n i t o r i n g 3 C O M C o r e B u i l d e r S w i t c h e s ENCRYPTTYPE – If the ENCRYPTFLAG is set to YES, then you will have to mention the encryption type by selecting an option from the ENCRYPTTYPE list. SNMP v3 supports the following encryption types:
o DES – Data Encryption Standard o AES – Advanced Encryption Standard
ENCRYPTPASSWORD – Specify the encryption password here.
CONFIRM PASSWORD – Confirm the encryption password by retyping it here.
ONLYUP – If the ONLYUP flag is set to Yes, then only the network interfaces that are operational - i.e. whose MIB-II operStatus variable has a value "up" - are monitored. If this flag is set to No, all network interfaces that have an adminStatus of "up" will be monitored.
FULLDUPLEX - If this value is
Yes
, then it indicates that all interfaces are full duplex. In this case, the eG Enterprise system will compute bandwidth usage % to be,max(input bandwidth, output bandwidth)*100/total speed
. On the other hand, if this flag is set toNo
, then the computation of bandwidth usage % will be(input bandwidth + output bandwidth)*100/total speed
.TIMEOUT - The maximum duration (in seconds) for which the test will wait for a response from the network interface.
DISCOVERBYSTATE – This flag controls how the test discovers network interfaces.
If this flag is
No
, the operational state of an interface is not considered when discovering all the network interfaces of a router/switch/network device. If this flag isYes
(which is the default setting), only interfaces that have been in theup
operational state will be considered for monitoring. In this mode, if an interface is down all of the time, it will not be considered for monitoring. However, once the interface starts to function, it will be tracked by the test and alerts generated if the interface state ever changes todown
.USEALIAS - Cisco and many network devices allow administrators to set the names for switch/router ports. These names can be set to logical, easily understandable values. Port names can be set in Cisco devices using the command "set port name". For example set port name 3/24 Federal_credit_union_link.
This command indicates that the port 3/24 is used to support the Federal Credit Union.
If the
USEALIAS
parameter is set toYes
, the agent will try to look at the port name (from the ifAlias SNMP OID) and use the port name if specified as the descriptor for the test results. IfUSEALIAS
is set toNo
, or if no port name/alias is specified in the network device setting, the interface description for each port provided in the SNMP MIB-II output is used instead as the descriptor for the test results.C o n f i g u r i n g a n d M o n i t o r i n g 3 C O M C o r e B u i l d e r S w i t c h e s
Figure 10.3: Configuring the Core Builder test
5. Finally, U