Medianet Reference Guide - Cisco
Medianet Reference Guide - Cisco
Medianet Reference Guide - Cisco
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<strong>Cisco</strong> Network Analysis Module<br />
Chapter 6<br />
<strong>Medianet</strong> Management and Visibility Design Considerations<br />
Table 6-3<br />
SNMP Versions and PDUs<br />
Version PDU Description<br />
SNMPv1 get-request Command/response mechanism by<br />
which an NMS queries a network<br />
element for a particular variable<br />
SNMPv1 response Command/response mechanism by<br />
which an NMS receives<br />
information about a particular<br />
variable from a network element,<br />
based on a previously issued<br />
SNMP request message<br />
SNMPv1 get-next-request Command/response mechanism<br />
that can be used iteratively by an<br />
NMS to retrieve sequences of<br />
variables from a network element<br />
SNMPv1 set-request Issued by an NMS to change the<br />
value of a variable on a network<br />
element, or to initialize SNMP<br />
traps or notifications to be sent<br />
from a network element<br />
SNMPv1 trap Asynchronous mechanism by<br />
which a network elements issues<br />
alerts or information about an<br />
event to an NMS<br />
SNMPv2 get-bulk-request Improved command/response<br />
mechanism that can be used by an<br />
NMS to retrieve sequences of<br />
variables from a network element<br />
with a single command<br />
SNMPv2 inform-request Provides similar functionality as<br />
the trap PDU, but the receiver<br />
acknowledges the receipt with a<br />
response PDU<br />
SNMP traps and/or informs (generically referred to a notifications) can be used to send critical fault<br />
management information, such as cold start events, link up or down events, and so on, from a medianet<br />
infrastructure device back to an NMS. This may be helpful in troubleshooting issues in which a video<br />
session has failed. SNMP GET commands can be used to pull statistics medianet infrastructure devices,<br />
which may then be used for assessing performance.<br />
Example 6-28 shows basic configuration commands for enabling SNMP on a <strong>Cisco</strong> Catalyst 6500<br />
Switch.<br />
Example 6-28<br />
Sample SNMP Configuration on a <strong>Cisco</strong> Catalyst 6500 Switch<br />
me-westcore-1(config)#snmp-server group group1 v3 priv access 10<br />
me-westcore-1(config)#snmp-server user trapuser group1 v3 auth sha trappassword priv des<br />
privacypassword<br />
me-westcore-1(config)#snmp-server trap-source Loopback0<br />
me-westcore-1(config)#snmp-server ip dscp 16<br />
6-64<br />
<strong>Medianet</strong> <strong>Reference</strong> <strong>Guide</strong><br />
OL-22201-01
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